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-rw-r--r--pkgs/games/anki/default.nix25
-rw-r--r--pkgs/games/arena/default.nix8
-rw-r--r--pkgs/games/arx-libertatis/default.nix4
-rw-r--r--pkgs/games/assaultcube/default.nix2
-rw-r--r--pkgs/games/augustus/default.nix24
-rw-r--r--pkgs/games/cataclysm-dda/builder.nix49
-rw-r--r--pkgs/games/cataclysm-dda/common.nix187
-rw-r--r--pkgs/games/cataclysm-dda/default.nix51
-rw-r--r--pkgs/games/cataclysm-dda/git.nix54
-rw-r--r--pkgs/games/cataclysm-dda/lib.nix17
-rw-r--r--pkgs/games/cataclysm-dda/patches/fix_locale_dir.patch18
-rw-r--r--pkgs/games/cataclysm-dda/patches/fix_locale_dir_git.patch20
-rw-r--r--pkgs/games/cataclysm-dda/pkgs/default.nix27
-rw-r--r--pkgs/games/cataclysm-dda/pkgs/tilesets/UndeadPeople/default.nix23
-rw-r--r--pkgs/games/cataclysm-dda/stable.nix34
-rw-r--r--pkgs/games/cataclysm-dda/wrapper.nix47
-rw-r--r--pkgs/games/chiaki/default.nix8
-rw-r--r--pkgs/games/chocolate-doom/default.nix4
-rw-r--r--pkgs/games/crispy-doom/default.nix14
-rw-r--r--pkgs/games/curseofwar/default.nix18
-rw-r--r--pkgs/games/dwarf-fortress/dfhack/default.nix29
-rw-r--r--pkgs/games/dwarf-fortress/twbt/default.nix13
-rw-r--r--pkgs/games/dwarf-fortress/wrapper/dwarf-fortress-init.in2
-rw-r--r--pkgs/games/easyrpg-player/default.nix4
-rw-r--r--pkgs/games/eduke32/default.nix2
-rw-r--r--pkgs/games/eidolon/default.nix2
-rw-r--r--pkgs/games/empty-epsilon/default.nix8
-rw-r--r--pkgs/games/endgame-singularity/default.nix58
-rw-r--r--pkgs/games/factorio/default.nix29
-rw-r--r--pkgs/games/flightgear/default.nix8
-rw-r--r--pkgs/games/frogatto/default.nix2
-rw-r--r--pkgs/games/frotz/default.nix33
-rw-r--r--pkgs/games/gargoyle/default.nix9
-rw-r--r--pkgs/games/gnome-hexgl/default.nix10
-rw-r--r--pkgs/games/gzdoom/default.nix130
-rw-r--r--pkgs/games/julius/default.nix24
-rw-r--r--pkgs/games/katago/default.nix25
-rw-r--r--pkgs/games/minecraft-server/default.nix6
-rw-r--r--pkgs/games/minecraft/default.nix7
-rw-r--r--pkgs/games/minetest/default.nix10
-rw-r--r--pkgs/games/mnemosyne/default.nix4
-rw-r--r--pkgs/games/mudlet/default.nix4
-rw-r--r--pkgs/games/ninvaders/default.nix2
-rw-r--r--pkgs/games/openjk/default.nix6
-rw-r--r--pkgs/games/openmw/default.nix8
-rw-r--r--pkgs/games/openmw/tes3mp.nix17
-rw-r--r--pkgs/games/openrct2/default.nix21
-rw-r--r--pkgs/games/openttd/default.nix4
-rw-r--r--pkgs/games/openttd/jgrpp.nix13
-rw-r--r--pkgs/games/openxray/default.nix10
-rw-r--r--pkgs/games/osu-lazer/bypass-tamper-detection.patch23
-rw-r--r--pkgs/games/osu-lazer/default.nix111
-rw-r--r--pkgs/games/osu-lazer/deps.nix1517
-rwxr-xr-xpkgs/games/osu-lazer/update.sh58
-rw-r--r--pkgs/games/pentobi/default.nix4
-rw-r--r--pkgs/games/runelite/default.nix2
-rw-r--r--pkgs/games/sfrotz/default.nix69
-rw-r--r--pkgs/games/shattered-pixel-dungeon/default.nix29
-rw-r--r--pkgs/games/spring/springlobby.nix4
-rw-r--r--pkgs/games/steam/default.nix5
-rw-r--r--pkgs/games/steam/fhsenv.nix (renamed from pkgs/games/steam/chrootenv.nix)10
-rw-r--r--pkgs/games/steam/runtime.nix21
-rw-r--r--pkgs/games/super-tux-kart/default.nix67
-rw-r--r--pkgs/games/tdm/default.nix6
-rw-r--r--pkgs/games/the-powder-toy/default.nix17
-rw-r--r--pkgs/games/ut2004/wrapper.nix2
-rw-r--r--pkgs/games/vdrift/default.nix4
-rw-r--r--pkgs/games/wesnoth/default.nix14
68 files changed, 2618 insertions, 479 deletions
diff --git a/pkgs/games/anki/default.nix b/pkgs/games/anki/default.nix
index 489e72768ea..0d713b1f71e 100644
--- a/pkgs/games/anki/default.nix
+++ b/pkgs/games/anki/default.nix
@@ -31,7 +31,7 @@
 
 let
   # when updating, also update rev-manual to a recent version of
-  # https://github.com/dae/ankidocs
+  # https://github.com/ankitects/anki-docs
   # The manual is distributed independently of the software.
   version = "2.1.15";
   sha256-pkg = "12dvyf3j9df4nrhhnqbzd9b21rpzkh4i6yhhangn2zf7ch0pclss";
@@ -42,8 +42,8 @@ let
     pname = "anki-manual";
     inherit version;
     src = fetchFromGitHub {
-      owner = "dae";
-      repo = "ankidocs";
+      owner = "ankitects";
+      repo = "anki-docs";
       rev = rev-manual;
       sha256 = sha256-manual;
     };
@@ -112,16 +112,10 @@ buildPythonApplication rec {
     ./no-version-check.patch
   ];
 
-  buildPhase = ''
-    # Dummy build phase
-    # Anki does not use setup.py
-  '';
+  # Anki does not use setup.py
+  dontBuild = true;
 
   postPatch = ''
-    # Remove unused starter. We'll create our own, minimalistic,
-    # starter.
-    # rm anki/anki
-
     # Remove QT translation files. We'll use the standard QT ones.
     rm "locale/"*.qm
 
@@ -134,10 +128,10 @@ buildPythonApplication rec {
   # UTF-8 locale needed for testing
   LC_ALL = "en_US.UTF-8";
 
+  # - Anki writes some files to $HOME during tests
+  # - Skip tests using network
   checkPhase = ''
-    # - Anki writes some files to $HOME during tests
-    # - Skip tests using network
-    env HOME=$TMP pytest --ignore tests/test_sync.py
+    HOME=$TMP pytest --ignore tests/test_sync.py
   '';
 
   installPhase = ''
@@ -170,6 +164,7 @@ buildPythonApplication rec {
     cp -r ${manual}/share/doc/anki/html $doc/share/doc/anki
   '';
 
+  # now wrapPythonPrograms from postFixup will add both python and qt env variables
   dontWrapQtApps = true;
 
   preFixup = ''
@@ -179,8 +174,6 @@ buildPythonApplication rec {
     )
   '';
 
-  # now wrapPythonPrograms from postFixup will add both python and qt env variables
-
   passthru = {
     inherit manual;
   };
diff --git a/pkgs/games/arena/default.nix b/pkgs/games/arena/default.nix
index a8e147b6a7e..beba98b6316 100644
--- a/pkgs/games/arena/default.nix
+++ b/pkgs/games/arena/default.nix
@@ -12,11 +12,11 @@ let
 
 in
 stdenv.mkDerivation rec {
-  name = "arena-1.1";
+  name = "arena-3.10-beta";
 
   src = fetchurl {
-    url = "http://www.playwitharena.de/downloads/arenalinux_64bit_1.1.tar.gz";
-    sha256 = "1sh71v5ymzwflq8ycx9j9kl0jhqllgs6z24h4h8j5z8pwdh528v6";
+    url = "http://www.playwitharena.de/downloads/arenalinux_64bit_3.10beta.tar.gz";
+    sha256 = "1pzb9sg4lzbbi4gbldvlb85p8xyl9xnplxwyb9pkk2mwzvvxkf0d";
   };
 
   # stdenv.cc.cc.lib is in that list to pick up libstdc++.so. Is there a better way?
@@ -30,7 +30,7 @@ stdenv.mkDerivation rec {
 
     # Remove executable bits from data files. This matters for the find command
     # we'll use below to find all bundled engines.
-    chmod -x $out/lib/${name}/Engines/*/*.{txt,bin,bmp}
+    chmod -x $out/lib/${name}/Engines/*/*.{txt,bin,bmp,zip}
   '';
 
   buildPhase = ''
diff --git a/pkgs/games/arx-libertatis/default.nix b/pkgs/games/arx-libertatis/default.nix
index 8b2cf83e509..2e60f81f4d3 100644
--- a/pkgs/games/arx-libertatis/default.nix
+++ b/pkgs/games/arx-libertatis/default.nix
@@ -1,6 +1,6 @@
 { stdenv, fetchFromGitHub, cmake, zlib, boost
 , openal, glm, freetype, libGLU, SDL2, epoxy
-, dejavu_fonts, inkscape, optipng, imagemagick
+, dejavu_fonts, inkscape_0, optipng, imagemagick
 , withCrashReporter ? !stdenv.isDarwin
 ,   qtbase ? null
 ,   wrapQtAppsHook ? null
@@ -22,7 +22,7 @@ stdenv.mkDerivation {
   };
 
   nativeBuildInputs = [
-    cmake inkscape imagemagick optipng
+    cmake inkscape_0 imagemagick optipng
   ] ++ optionals withCrashReporter [ wrapQtAppsHook ];
 
   buildInputs = [
diff --git a/pkgs/games/assaultcube/default.nix b/pkgs/games/assaultcube/default.nix
index f40e2ecf220..6c3a7f1168e 100644
--- a/pkgs/games/assaultcube/default.nix
+++ b/pkgs/games/assaultcube/default.nix
@@ -29,7 +29,7 @@ stdenv.mkDerivation rec {
     desktopName = "AssaultCube";
     comment = "A multiplayer, first-person shooter game, based on the CUBE engine. Fast, arcade gameplay.";
     genericName = "First-person shooter";
-    categories = "Application;Game;ActionGame;Shooter";
+    categories = "Game;ActionGame;Shooter";
     icon = "assaultcube.png";
     exec = pname;
   };
diff --git a/pkgs/games/augustus/default.nix b/pkgs/games/augustus/default.nix
new file mode 100644
index 00000000000..cabe419ef5b
--- /dev/null
+++ b/pkgs/games/augustus/default.nix
@@ -0,0 +1,24 @@
+{ stdenv, fetchFromGitHub, cmake, SDL2, SDL2_mixer, libpng }:
+
+stdenv.mkDerivation rec {
+  pname = "augustus";
+  version = "1.4.1a";
+
+  src = fetchFromGitHub {
+    owner = "Keriew";
+    repo = "augustus";
+    rev = "v${version}";
+    sha256 = "1xqv8j8jh3f13fjhyf7hk1anrn799cwwsvsd75kpl9n5yh5s1j5y";
+  };
+
+  nativeBuildInputs = [ cmake ];
+  buildInputs = [ SDL2 SDL2_mixer libpng ];
+
+  meta = with stdenv.lib; {
+    description = "An open source re-implementation of Caesar III. Fork of Julius incorporating gameplay changes";
+    homepage = "https://github.com/Keriew/augustus";
+    license = licenses.agpl3;
+    platforms = platforms.all;
+    maintainers = with maintainers; [ Thra11 ];
+  };
+}
diff --git a/pkgs/games/cataclysm-dda/builder.nix b/pkgs/games/cataclysm-dda/builder.nix
new file mode 100644
index 00000000000..24128875f3a
--- /dev/null
+++ b/pkgs/games/cataclysm-dda/builder.nix
@@ -0,0 +1,49 @@
+{ stdenvNoCC, lib, type }:
+
+assert lib.elem type [
+  "mod"
+  "soundpack"
+  "tileset"
+];
+
+{ modName, version, src, ... } @ args:
+
+stdenvNoCC.mkDerivation (args // rec {
+  pname = args.pname or "cataclysm-dda-${type}-${modName}";
+
+  modRoot = args.modRoot or ".";
+
+  configurePhase = args.configurePhase or ''
+    runHook preConfigure
+    runHook postConfigure
+  '';
+
+  buildPhase = args.buildPhase or ''
+    runHook preBuild
+    runHook postBuild
+  '';
+
+  checkPhase = args.checkPhase or ''
+    runHook preCheck
+    runHook postCheck
+  '';
+
+  installPhase = let
+    baseDir = {
+      mod = "mods";
+      soundpack = "sound";
+      tileset = "gfx";
+    }.${type};
+  in args.installPhase or ''
+    runHook preInstall
+    destdir="$out/share/cataclysm-dda/${baseDir}"
+    mkdir -p "$destdir"
+    cp -R "${modRoot}" "$destdir/${modName}"
+    runHook postInstall
+  '';
+
+  passthru = {
+    forTiles = true;
+    forCurses = type == "mod";
+  };
+})
diff --git a/pkgs/games/cataclysm-dda/common.nix b/pkgs/games/cataclysm-dda/common.nix
index f904a3c0f35..9ec73cdebe0 100644
--- a/pkgs/games/cataclysm-dda/common.nix
+++ b/pkgs/games/cataclysm-dda/common.nix
@@ -1,6 +1,7 @@
-{ stdenv, fetchFromGitHub, pkgconfig, gettext, ncurses, CoreFoundation
+{ stdenv, runtimeShell, pkgconfig, gettext, ncurses, CoreFoundation
 , tiles, SDL2, SDL2_image, SDL2_mixer, SDL2_ttf, freetype, Cocoa
-, debug, runtimeShell
+, debug
+, useXdgDir
 }:
 
 let
@@ -12,98 +13,100 @@ let
   tilesDeps = [ SDL2 SDL2_image SDL2_mixer SDL2_ttf freetype ]
     ++ optionals stdenv.isDarwin [ Cocoa ];
 
-  common = {
-    nativeBuildInputs = [ pkgconfig ];
-
-    buildInputs = cursesDeps ++ optionals tiles tilesDeps;
-
-    postPatch = ''
-      patchShebangs .
-    '';
+  installXDGAppLauncher = ''
+    launcher="$out/share/applications/cataclysm-dda.desktop"
+    install -D -m 444 data/xdg/*cataclysm-dda.desktop -T "$launcher"
+    sed -i "$launcher" -e "s,\(Exec=\)\(cataclysm-tiles\),\1$out/bin/\2,"
+    install -D -m 444 data/xdg/cataclysm-dda.svg -t $out/share/icons/hicolor/scalable/apps
+  '';
+
+  installMacOSAppLauncher = ''
+    app=$out/Applications/Cataclysm.app
+    install -D -m 444 data/osx/Info.plist -t $app/Contents
+    install -D -m 444 data/osx/AppIcon.icns -t $app/Contents/Resources
+    mkdir $app/Contents/MacOS
+    launcher=$app/Contents/MacOS/Cataclysm.sh
+    cat << EOF > $launcher
+    #!${runtimeShell}
+    $out/bin/cataclysm-tiles
+    EOF
+    chmod 555 $launcher
+  '';
+in
 
-    makeFlags = [
-      "PREFIX=$(out)" "USE_HOME_DIR=1" "LANGUAGES=all"
-    ] ++ optionals (!debug) [
-      "RELEASE=1"
-    ] ++ optionals tiles [
-      "TILES=1" "SOUND=1"
-    ] ++ optionals stdenv.isDarwin [
-      "NATIVE=osx" "CLANG=1"
-    ];
-
-    postInstall = optionalString tiles
-    ( if !stdenv.isDarwin
-      then utils.installXDGAppLauncher
-      else utils.installMacOSAppLauncher
-    );
-
-    dontStrip = debug;
-
-    # https://hydra.nixos.org/build/65193254
-    # src/weather_data.cpp:203:1: fatal error: opening dependency file obj/tiles/weather_data.d: No such file or directory
-    # make: *** [Makefile:687: obj/tiles/weather_data.o] Error 1
-    enableParallelBuilding = false;
-
-    meta = with stdenv.lib; {
-      description = "A free, post apocalyptic, zombie infested rogue-like";
-      longDescription = ''
-        Cataclysm: Dark Days Ahead is a roguelike set in a post-apocalyptic world.
-        Surviving is difficult: you have been thrown, ill-equipped, into a
-        landscape now riddled with monstrosities of which flesh eating zombies are
-        neither the strangest nor the deadliest.
-
-        Yet with care and a little luck, many things are possible. You may try to
-        eke out an existence in the forests silently executing threats and
-        providing sustenance with your longbow. You can ride into town in a
-        jerry-rigged vehicle, all guns blazing, to settle matters in a fug of
-        smoke from your molotovs. You could take a more measured approach and
-        construct an impregnable fortress, surrounded by traps to protect you from
-        the horrors without. The longer you survive, the more skilled and adapted
-        you will get and the better equipped and armed to deal with the threats
-        you are presented with.
-
-        In the course of your ordeal there will be opportunities and temptations
-        to improve or change your very nature. There are tales of survivors fitted
-        with extraordinary cybernetics giving great power and stories too of
-        gravely mutated survivors who, warped by their ingestion of exotic
-        substances or radiation, now more closely resemble insects, birds or fish
-        than their original form.
-      '';
-      homepage = "https://cataclysmdda.org/";
-      license = licenses.cc-by-sa-30;
-      maintainers = with maintainers; [ mnacamura ];
-      platforms = platforms.unix;
-    };
+stdenv.mkDerivation {
+  pname = "cataclysm-dda";
+
+  nativeBuildInputs = [ pkgconfig ];
+
+  buildInputs = cursesDeps ++ optionals tiles tilesDeps;
+
+  postPatch = ''
+    patchShebangs .
+
+    # Locale patch required for Darwin builds, see:
+    # https://github.com/NixOS/nixpkgs/pull/74064#issuecomment-560083970
+    sed -i src/translations.cpp \
+        -e 's@#elif (defined(__linux__) || (defined(MACOSX) && !defined(TILES)))@#elif 1@'
+  '';
+
+  makeFlags = [
+    "PREFIX=$(out)" "LANGUAGES=all"
+    (if useXdgDir then "USE_XDG_DIR=1" else "USE_HOME_DIR=1")
+  ] ++ optionals (!debug) [
+    "RELEASE=1"
+  ] ++ optionals tiles [
+    "TILES=1" "SOUND=1"
+  ] ++ optionals stdenv.isDarwin [
+    "NATIVE=osx" "CLANG=1"
+  ];
+
+  postInstall = optionalString tiles
+  ( if !stdenv.isDarwin
+    then installXDGAppLauncher
+    else installMacOSAppLauncher
+  );
+
+  dontStrip = debug;
+
+  # https://hydra.nixos.org/build/65193254
+  # src/weather_data.cpp:203:1: fatal error: opening dependency file obj/tiles/weather_data.d: No such file or directory
+  # make: *** [Makefile:687: obj/tiles/weather_data.o] Error 1
+  enableParallelBuilding = false;
+
+  passthru = {
+    isTiles = tiles;
+    isCurses = !tiles;
   };
 
-  utils = {
-    fetchFromCleverRaven = { rev, sha256 }:
-    fetchFromGitHub {
-      owner = "CleverRaven";
-      repo = "Cataclysm-DDA";
-      inherit rev sha256;
-    };
-
-    installXDGAppLauncher = ''
-      launcher="$out/share/applications/cataclysm-dda.desktop"
-      install -D -m 444 data/xdg/*cataclysm-dda.desktop -T "$launcher"
-      sed -i "$launcher" -e "s,\(Exec=\)\(cataclysm-tiles\),\1$out/bin/\2,"
-      install -D -m 444 data/xdg/cataclysm-dda.svg -t $out/share/icons/hicolor/scalable/apps
-    '';
-
-    installMacOSAppLauncher = ''
-      app=$out/Applications/Cataclysm.app
-      install -D -m 444 data/osx/Info.plist -t $app/Contents
-      install -D -m 444 data/osx/AppIcon.icns -t $app/Contents/Resources
-      mkdir $app/Contents/MacOS
-      launcher=$app/Contents/MacOS/Cataclysm.sh
-      cat << EOF > $launcher
-      #!${runtimeShell}
-      $out/bin/cataclysm-tiles
-      EOF
-      chmod 555 $launcher
+  meta = with stdenv.lib; {
+    description = "A free, post apocalyptic, zombie infested rogue-like";
+    longDescription = ''
+      Cataclysm: Dark Days Ahead is a roguelike set in a post-apocalyptic world.
+      Surviving is difficult: you have been thrown, ill-equipped, into a
+      landscape now riddled with monstrosities of which flesh eating zombies are
+      neither the strangest nor the deadliest.
+
+      Yet with care and a little luck, many things are possible. You may try to
+      eke out an existence in the forests silently executing threats and
+      providing sustenance with your longbow. You can ride into town in a
+      jerry-rigged vehicle, all guns blazing, to settle matters in a fug of
+      smoke from your molotovs. You could take a more measured approach and
+      construct an impregnable fortress, surrounded by traps to protect you from
+      the horrors without. The longer you survive, the more skilled and adapted
+      you will get and the better equipped and armed to deal with the threats
+      you are presented with.
+
+      In the course of your ordeal there will be opportunities and temptations
+      to improve or change your very nature. There are tales of survivors fitted
+      with extraordinary cybernetics giving great power and stories too of
+      gravely mutated survivors who, warped by their ingestion of exotic
+      substances or radiation, now more closely resemble insects, birds or fish
+      than their original form.
     '';
+    homepage = "https://cataclysmdda.org/";
+    license = licenses.cc-by-sa-30;
+    maintainers = with maintainers; [ mnacamura ];
+    platforms = platforms.unix;
   };
-in
-
-{ inherit common utils; }
+}
diff --git a/pkgs/games/cataclysm-dda/default.nix b/pkgs/games/cataclysm-dda/default.nix
index ad1a9c409d5..ada212ea7e9 100644
--- a/pkgs/games/cataclysm-dda/default.nix
+++ b/pkgs/games/cataclysm-dda/default.nix
@@ -1,25 +1,42 @@
-{ stdenv, callPackage, CoreFoundation
-, tiles ? true, Cocoa
-, debug ? false
-}:
+{ newScope, darwin }:
 
 let
-  inherit (callPackage ./common.nix { inherit tiles CoreFoundation Cocoa debug; }) common utils;
-  inherit (utils) fetchFromCleverRaven;
-in
+  callPackage = newScope self;
 
-stdenv.mkDerivation (common // rec {
-  version = "0.E";
-  name = "cataclysm-dda-${version}";
+  stable = rec {
+    tiles = callPackage ./stable.nix {
+      inherit (darwin.apple_sdk.frameworks) CoreFoundation Cocoa;
+    };
 
-  src = fetchFromCleverRaven {
-    rev = version;
-    sha256 = "0pbi0fw37zimzdklfj58s1ql0wlqq7dy6idkcsib3hn910ajaxan";
+    curses = tiles.override { tiles = false; };
   };
 
-  patches = [ ./patches/fix_locale_dir.patch ];
+  git = rec {
+    tiles = callPackage ./git.nix {
+      inherit (darwin.apple_sdk.frameworks) CoreFoundation Cocoa;
+    };
 
-  meta = with stdenv.lib.maintainers; common.meta // {
-    maintainers = common.meta.maintainers ++ [ skeidel ];
+    curses = tiles.override { tiles = false; };
   };
-})
+
+  lib = callPackage ./lib.nix {};
+
+  pkgs = callPackage ./pkgs {};
+
+  self = {
+    inherit
+    callPackage
+    stable
+    git;
+
+    inherit (lib)
+    buildMod
+    buildSoundPack
+    buildTileSet
+    wrapCDDA;
+
+    inherit pkgs;
+  };
+in
+
+self
diff --git a/pkgs/games/cataclysm-dda/git.nix b/pkgs/games/cataclysm-dda/git.nix
index 8e3c3e33994..36f37f7aeba 100644
--- a/pkgs/games/cataclysm-dda/git.nix
+++ b/pkgs/games/cataclysm-dda/git.nix
@@ -1,33 +1,41 @@
-{ stdenv, callPackage, CoreFoundation
+{ lib, callPackage, CoreFoundation, fetchFromGitHub, pkgs, wrapCDDA
 , tiles ? true, Cocoa
 , debug ? false
+, useXdgDir ? false
+, version ? "2019-11-22"
+, rev ? "a6c8ece992bffeae3788425dd4b3b5871e66a9cd"
+, sha256 ? "0ww2q5gykxm802z1kffmnrfahjlx123j1gfszklpsv0b1fccm1ab"
 }:
 
 let
-  inherit (stdenv.lib) substring;
-  inherit (callPackage ./common.nix { inherit tiles CoreFoundation Cocoa debug; }) common utils;
-  inherit (utils) fetchFromCleverRaven;
-in
+  common = callPackage ./common.nix {
+    inherit CoreFoundation tiles Cocoa debug useXdgDir;
+  };
 
-stdenv.mkDerivation (common // rec {
-  version = "2019-11-22";
-  name = "cataclysm-dda-git-${version}";
+  self = common.overrideAttrs (common: rec {
+    pname = common.pname + "-git";
+    inherit version;
 
-  src = fetchFromCleverRaven {
-    rev = "a6c8ece992bffeae3788425dd4b3b5871e66a9cd";
-    sha256 = "0ww2q5gykxm802z1kffmnrfahjlx123j1gfszklpsv0b1fccm1ab";
-  };
+    src = fetchFromGitHub {
+      owner = "CleverRaven";
+      repo = "Cataclysm-DDA";
+      inherit rev sha256;
+    };
 
-  patches = [
-    # Locale patch required for Darwin builds, see: https://github.com/NixOS/nixpkgs/pull/74064#issuecomment-560083970
-    ./patches/fix_locale_dir_git.patch
-  ];
+    makeFlags = common.makeFlags ++ [
+      "VERSION=git-${version}-${lib.substring 0 8 src.rev}"
+    ];
 
-  makeFlags = common.makeFlags ++ [
-    "VERSION=git-${version}-${substring 0 8 src.rev}"
-  ];
+    passthru = common.passthru // {
+      pkgs = pkgs.override { build = self; };
+      withMods = wrapCDDA self;
+    };
 
-  meta = with stdenv.lib.maintainers; common.meta // {
-    maintainers = common.meta.maintainers ++ [ rardiol ];
-  };
-})
+    meta = common.meta // {
+      maintainers = with lib.maintainers;
+      common.meta.maintainers ++ [ rardiol ];
+    };
+  });
+in
+
+self
diff --git a/pkgs/games/cataclysm-dda/lib.nix b/pkgs/games/cataclysm-dda/lib.nix
new file mode 100644
index 00000000000..02678ed0228
--- /dev/null
+++ b/pkgs/games/cataclysm-dda/lib.nix
@@ -0,0 +1,17 @@
+{ callPackage }:
+
+{
+  buildMod = callPackage ./builder.nix {
+    type = "mod";
+  };
+
+  buildSoundPack = callPackage ./builder.nix {
+    type = "soundpack";
+  };
+
+  buildTileSet = callPackage ./builder.nix {
+    type = "tileset";
+  };
+
+  wrapCDDA = callPackage ./wrapper.nix {};
+}
diff --git a/pkgs/games/cataclysm-dda/patches/fix_locale_dir.patch b/pkgs/games/cataclysm-dda/patches/fix_locale_dir.patch
deleted file mode 100644
index 5bfff892d2a..00000000000
--- a/pkgs/games/cataclysm-dda/patches/fix_locale_dir.patch
+++ /dev/null
@@ -1,18 +0,0 @@
---- a/src/translations.cpp
-+++ b/src/translations.cpp
-@@ -212,14 +212,12 @@ void set_language()
-     auto env = getenv( "LANGUAGE" );
-     locale_dir = std::string( PATH_INFO::base_path() + "lang/mo/" + ( env ? env : "none" ) +
-                               "/LC_MESSAGES/cataclysm-dda.mo" );
--#elif (defined(__linux__) || (defined(MACOSX) && !defined(TILES)))
-+#else
-     if( !PATH_INFO::base_path().empty() ) {
-         locale_dir = PATH_INFO::base_path() + "share/locale";
-     } else {
-         locale_dir = "lang/mo";
-     }
--#else
--    locale_dir = "lang/mo";
- #endif
- 
-     const char *locale_dir_char = locale_dir.c_str();
diff --git a/pkgs/games/cataclysm-dda/patches/fix_locale_dir_git.patch b/pkgs/games/cataclysm-dda/patches/fix_locale_dir_git.patch
deleted file mode 100644
index 79b442ff5c9..00000000000
--- a/pkgs/games/cataclysm-dda/patches/fix_locale_dir_git.patch
+++ /dev/null
@@ -1,20 +0,0 @@
-diff --git a/src/translations.cpp b/src/translations.cpp
-index 067e2cd77d..5660d18b3d 100644
---- a/src/translations.cpp
-+++ b/src/translations.cpp
-@@ -211,14 +211,12 @@ void set_language()
-     auto env = getenv( "LANGUAGE" );
-     locale_dir = std::string( FILENAMES["base_path"] + "lang/mo/" + ( env ? env : "none" ) +
-                               "/LC_MESSAGES/cataclysm-dda.mo" );
--#elif (defined(__linux__) || (defined(MACOSX) && !defined(TILES)))
-+#else
-     if( !FILENAMES["base_path"].empty() ) {
-         locale_dir = FILENAMES["base_path"] + "share/locale";
-     } else {
-         locale_dir = "lang/mo";
-     }
--#else
--    locale_dir = "lang/mo";
- #endif
-
-     const char *locale_dir_char = locale_dir.c_str();
diff --git a/pkgs/games/cataclysm-dda/pkgs/default.nix b/pkgs/games/cataclysm-dda/pkgs/default.nix
new file mode 100644
index 00000000000..6f3df09a786
--- /dev/null
+++ b/pkgs/games/cataclysm-dda/pkgs/default.nix
@@ -0,0 +1,27 @@
+{ lib, callPackage, build ? null }:
+
+let
+  pkgs = {
+    mod = {
+    };
+
+    soundpack = {
+    };
+
+    tileset = {
+      UndeadPeople = callPackage ./tilesets/UndeadPeople {};
+    };
+  };
+
+  pkgs' = lib.mapAttrs (_: mod: lib.filterAttrs availableForBuild mod) pkgs;
+
+  availableForBuild = _: mod:
+  if isNull build then
+    true
+  else if build.isTiles then
+    mod.forTiles
+  else
+    mod.forCurses;
+in
+
+lib.makeExtensible (_: pkgs')
diff --git a/pkgs/games/cataclysm-dda/pkgs/tilesets/UndeadPeople/default.nix b/pkgs/games/cataclysm-dda/pkgs/tilesets/UndeadPeople/default.nix
new file mode 100644
index 00000000000..7a58cea8208
--- /dev/null
+++ b/pkgs/games/cataclysm-dda/pkgs/tilesets/UndeadPeople/default.nix
@@ -0,0 +1,23 @@
+{ lib, buildTileSet, fetchFromGitHub }:
+
+buildTileSet {
+  modName = "UndeadPeople";
+  version = "2020-07-08";
+
+  src = fetchFromGitHub {
+    owner = "SomeDeadGuy";
+    repo = "UndeadPeopleTileset";
+    rev = "f7f13b850fafe2261deee051f45d9c611a661534";
+    sha256 = "0r06srjr7rq51jk9yfyxz80nfgb98mkn86cbcjfxpibgbqvcp0zm";
+  };
+
+  modRoot = "MSX++UnDeadPeopleEdition";
+
+  meta = with lib; {
+    description = "Cataclysm DDA tileset based on MSX++ tileset";
+    homepage = "https://github.com/SomeDeadGuy/UndeadPeopleTileset";
+    license = licenses.unfree;
+    maintainers = with maintainers; [ mnacamura ];
+    platforms = platforms.all;
+  };
+}
diff --git a/pkgs/games/cataclysm-dda/stable.nix b/pkgs/games/cataclysm-dda/stable.nix
new file mode 100644
index 00000000000..076a33a9e89
--- /dev/null
+++ b/pkgs/games/cataclysm-dda/stable.nix
@@ -0,0 +1,34 @@
+{ lib, callPackage, CoreFoundation, fetchFromGitHub, pkgs, wrapCDDA
+, tiles ? true, Cocoa
+, debug ? false
+, useXdgDir ? false
+}:
+
+let
+  common = callPackage ./common.nix {
+    inherit CoreFoundation tiles Cocoa debug useXdgDir;
+  };
+
+  self = common.overrideAttrs (common: rec {
+    version = "0.E-2";
+
+    src = fetchFromGitHub {
+      owner = "CleverRaven";
+      repo = "Cataclysm-DDA";
+      rev = version;
+      sha256 = "15l6w6lxays7qmsv0ci2ry53asb9an9dh7l7fc13256k085qcg68";
+    };
+
+    passthru = common.passthru // {
+      pkgs = pkgs.override { build = self; };
+      withMods = wrapCDDA self;
+    };
+
+    meta = common.meta // {
+      maintainers = with lib.maintainers;
+      common.meta.maintainers ++ [ skeidel ];
+    };
+  });
+in
+
+self
diff --git a/pkgs/games/cataclysm-dda/wrapper.nix b/pkgs/games/cataclysm-dda/wrapper.nix
new file mode 100644
index 00000000000..a73c320f9c6
--- /dev/null
+++ b/pkgs/games/cataclysm-dda/wrapper.nix
@@ -0,0 +1,47 @@
+{ lib, symlinkJoin, makeWrapper }:
+
+unwrapped:
+
+pkgsSpec:
+
+let
+  mods = if lib.isFunction pkgsSpec
+         then pkgsSpec unwrapped.pkgs
+         else pkgsSpec;
+in
+
+if builtins.length mods == 0
+then unwrapped
+else symlinkJoin {
+  name = unwrapped.name + "-with-mods";
+
+  paths = [ unwrapped ] ++ mods;
+
+  nativeBuildInputs = [ makeWrapper ];
+
+  postBuild = ''
+    if [ -x $out/bin/cataclysm ]; then
+        wrapProgram $out/bin/cataclysm \
+            --add-flags "--datadir $out/share/cataclysm-dda/"
+    fi
+    if [ -x $out/bin/cataclysm-tiles ]; then
+        wrapProgram $out/bin/cataclysm-tiles \
+            --add-flags "--datadir $out/share/cataclysm-dda/"
+    fi
+
+    # Launch the wrapped program
+    replaceProgram() {
+        cp "$1" "''${1}.bk"
+        unlink "$1"
+        mv "''${1}.bk" "$1"
+        sed -i "$1" -e "s,/nix/store/.\+\(/bin/cataclysm-tiles\),$out\1,"
+    }
+    for script in "$out/share/applications/cataclysm-dda.desktop" \
+                  "$out/Applications/Cataclysm.app/Contents/MacOS/Cataclysm.sh"
+    do
+        if [ -e "$script" ]; then
+            replaceProgram "$script"
+        fi
+    done
+  '';
+}
diff --git a/pkgs/games/chiaki/default.nix b/pkgs/games/chiaki/default.nix
index ac228118444..be4ec7b73b4 100644
--- a/pkgs/games/chiaki/default.nix
+++ b/pkgs/games/chiaki/default.nix
@@ -1,23 +1,23 @@
 { lib, mkDerivation, fetchFromGitHub
-, cmake, ffmpeg_3, libopus, qtbase, qtmultimedia, qtsvg, pkgconfig, protobuf
+, cmake, ffmpeg, libopus, qtbase, qtmultimedia, qtsvg, pkgconfig, protobuf
 , python3Packages, SDL2 }:
 
 mkDerivation rec {
   pname = "chiaki";
-  version = "1.1.3";
+  version = "1.2.1";
 
   src = fetchFromGitHub {
     rev = "v${version}";
     owner = "thestr4ng3r";
     repo = "chiaki";
     fetchSubmodules = true;
-    sha256 = "12cb4wpibh077san9rpsmavihf0xy9iqc9zl7y0aagrkl50h19kr";
+    sha256 = "00lzsbjd1w1bhlblgf7zp112sk8ac09c3bzi5ljxbn02mi0an3qp";
   };
 
   nativeBuildInputs = [
     cmake pkgconfig protobuf python3Packages.python python3Packages.protobuf
   ];
-  buildInputs = [ ffmpeg_3 libopus qtbase qtmultimedia qtsvg protobuf SDL2 ];
+  buildInputs = [ ffmpeg libopus qtbase qtmultimedia qtsvg protobuf SDL2 ];
 
   doCheck = true;
 
diff --git a/pkgs/games/chocolate-doom/default.nix b/pkgs/games/chocolate-doom/default.nix
index 1c2a24de01d..1b77a72f8d0 100644
--- a/pkgs/games/chocolate-doom/default.nix
+++ b/pkgs/games/chocolate-doom/default.nix
@@ -2,13 +2,13 @@
 
 stdenv.mkDerivation rec {
   pname = "chocolate-doom";
-  version = "3.0.0";
+  version = "3.0.1";
 
   src = fetchFromGitHub {
     owner = "chocolate-doom";
     repo = pname;
     rev = "${pname}-${version}";
-    sha256 = "0ajzb767wyj8vzhjpsmgslw42b0155ji4alk26shxl7k5ijbzn0j";
+    sha256 = "1zlcqhd49c5n8vaahgaqrc2y10z86xng51sbd82xm3rk2dly25jp";
   };
 
   postPatch = ''
diff --git a/pkgs/games/crispy-doom/default.nix b/pkgs/games/crispy-doom/default.nix
index ea7c3c6e478..5bd6e714e42 100644
--- a/pkgs/games/crispy-doom/default.nix
+++ b/pkgs/games/crispy-doom/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, autoreconfHook, pkgconfig, SDL2, SDL2_mixer, SDL2_net, fetchFromGitHub }:
+{ stdenv, autoreconfHook, pkgconfig, SDL2, SDL2_mixer, SDL2_net, fetchFromGitHub, fetchpatch }:
 
 stdenv.mkDerivation rec {
   pname = "crispy-doom";
@@ -11,6 +11,18 @@ stdenv.mkDerivation rec {
     sha256 = "1b6gn0dysv631jynh769whww9xcss1gms78sz3nrn855q1dsvcb4";
   };
 
+  patches = [
+    # Fixes CVE-2020-14983
+    (fetchpatch {
+      url = "https://github.com/chocolate-doom/chocolate-doom/commit/f1a8d991aa8a14afcb605cf2f65cd15fda204c56.diff";
+      sha256 = "1z6pxg9azcqq7g09hjc09d01knd803nhqilkw2kbx8648hil9mgn";
+    })
+    (fetchpatch {
+      url = "https://github.com/chocolate-doom/chocolate-doom/commit/54fb12eeaa7d527defbe65e7e00e37d5feb7c597.diff";
+      sha256 = "0ww21jn02ld73rkp06f7fqy92jqv8c9q4d1mvsryag1gmvy57znj";
+    })
+  ];
+
   postPatch = ''
     sed -e 's#/games#/bin#g' -i src{,/setup}/Makefile.am
   '';
diff --git a/pkgs/games/curseofwar/default.nix b/pkgs/games/curseofwar/default.nix
index 8b915345f86..9aff3798b6b 100644
--- a/pkgs/games/curseofwar/default.nix
+++ b/pkgs/games/curseofwar/default.nix
@@ -1,34 +1,30 @@
 { stdenv
 , fetchFromGitHub
-, fetchpatch
 , ncurses
 , SDL
 }:
 
 stdenv.mkDerivation rec {
   pname = "curseofwar";
-  version = "1.2.0";
+  version = "1.3.0";
 
   src = fetchFromGitHub {
     owner = "a-nikolaev";
     repo = pname;
     rev = "v${version}";
-    sha256 = "1bj3lv5vrnwzzkgj31pyf1lzkz10qphvzlfz7a3j4plqkczjq92y";
+    sha256 = "1wd71wdnj9izg5d95m81yx3684g4zdi7fsy0j5wwnbd9j34ilz1i";
   };
 
-  patches = [(fetchpatch {
-    # Pull request #40: https://github.com/a-nikolaev/curseofwar/pull/40
-    name = "prefix-independent-data";
-    url = "https://github.com/fgaz/curseofwar/commit/947dea527b2bf4c6e107b8e9c66f4c4fd775b6f9.patch";
-    sha256 = "0ak5igaxmbavkbl8101xx6gswhwgzm5f6wyplwapgh7cylnclc61";
-  })];
-
   buildInputs = [
     ncurses
     SDL
   ];
 
-  makeFlags = (if isNull SDL then [] else [ "SDL=yes" ]) ++ [ "PREFIX=$(out)" ];
+  makeFlags = (if isNull SDL then [] else [ "SDL=yes" ]) ++ [
+    "PREFIX=$(out)"
+    # force platform's cc on darwin, otherwise gcc is used
+    "CC=${stdenv.cc.targetPrefix}cc"
+  ];
 
   meta = with stdenv.lib; {
     description = "A fast-paced action strategy game";
diff --git a/pkgs/games/dwarf-fortress/dfhack/default.nix b/pkgs/games/dwarf-fortress/dfhack/default.nix
index bd37f6180b1..11c21b82c29 100644
--- a/pkgs/games/dwarf-fortress/dfhack/default.nix
+++ b/pkgs/games/dwarf-fortress/dfhack/default.nix
@@ -1,5 +1,5 @@
 { stdenv, buildEnv, lib, fetchFromGitHub, cmake, writeScriptBin
-, perl, XMLLibXML, XMLLibXSLT, zlib
+, perl, XMLLibXML, XMLLibXSLT, zlib, ruby
 , enableStoneSense ? false,  allegro5, libGLU, libGL
 , enableTWBT ? true, twbt
 , SDL
@@ -53,10 +53,10 @@ let
       prerelease = true;
     };
     "0.47.04" = {
-      dfHackRelease = "0.47.04-alpha0";
-      sha256 = "07056k6717mqim9skwjprqplj8jmmli6g4p2c72c8000jwnn2hjy";
-      xmlRev = "23500e4e9bd1885365d0a2ef1746c321c1dd50aa";
-      prerelease = true;
+      dfHackRelease = "0.47.04-r2";
+      sha256 = "18ppn1dqaxi6ahjzsvb9kw70rvca106a1hibhzc4rxmraypnqb89";
+      xmlRev = "036b662a1bbc96b4911f3cbe74dfa1243b6459bc";
+      prerelease = false;
     };
   };
 
@@ -109,6 +109,19 @@ let
     };
 
     patches = [ ./fix-stonesense.patch ];
+
+    # As of
+    # https://github.com/DFHack/dfhack/commit/56e43a0dde023c5a4595a22b29d800153b31e3c4,
+    # dfhack gets its goodies from the directory above the Dwarf_Fortress
+    # executable, which leads to stock Dwarf Fortress and not the built
+    # environment where all the dfhack resources are symlinked to (typically
+    # ~/.local/share/df_linux). This causes errors like `tweak is not a
+    # recognized command` to be reported and dfhack to lose some of its
+    # functionality.
+    postPatch = ''
+      sed -i 's@cached_path = path_string.*@cached_path = getenv("DF_DIR");@' library/Process-linux.cpp
+    '';
+
     nativeBuildInputs = [ cmake perl XMLLibXML XMLLibXSLT fakegit ];
     # We don't use system libraries because dfhack needs old C++ ABI.
     buildInputs = [ zlib SDL ]
@@ -127,6 +140,12 @@ let
     cmakeFlags = [ "-DDFHACK_BUILD_ARCH=${arch}" "-DDOWNLOAD_RUBY=OFF" ]
               ++ lib.optionals enableStoneSense [ "-DBUILD_STONESENSE=ON" "-DSTONESENSE_INTERNAL_SO=OFF" ];
 
+    # dfhack expects an unversioned libruby.so to be present in the hack
+    # subdirectory for ruby plugins to function.
+    postInstall = ''
+      ln -s ${ruby}/lib/libruby-*.so $out/hack/libruby.so
+    '';
+
     enableParallelBuilding = true;
   };
 in
diff --git a/pkgs/games/dwarf-fortress/twbt/default.nix b/pkgs/games/dwarf-fortress/twbt/default.nix
index b5bff0e9b7a..a0990e04f93 100644
--- a/pkgs/games/dwarf-fortress/twbt/default.nix
+++ b/pkgs/games/dwarf-fortress/twbt/default.nix
@@ -42,9 +42,10 @@ let
       prerelease = false;
     };
     "0.47.04" = {
-      twbtRelease = "6.61";
-      sha256 = "07bqy9rkd64h033sxdpigp5zq4xrr0xd36wdr1b21g649mv8j6yw";
-      prerelease = false;
+      twbtRelease = "6.xx";
+      dfhackRelease = "0.47.04-r2";
+      sha256 = "092dgp8fh1j4nqr9wbzn89ib1nhscclr8m91lfxsvg0mgn7j8xlv";
+      prerelease = true;
     };
   };
 
@@ -58,7 +59,11 @@ stdenvNoCC.mkDerivation rec {
   version = release.twbtRelease;
 
   src = fetchurl {
-    url = "https://github.com/mifki/df-twbt/releases/download/v${version}/twbt-${version}-linux.zip";
+    url =
+      if version == "6.xx" then
+        "https://github.com/thurin/df-twbt/releases/download/${release.dfhackRelease}/twbt-${version}-linux64-${release.dfhackRelease}.zip"
+      else
+        "https://github.com/mifki/df-twbt/releases/download/v${version}/twbt-${version}-linux.zip";
     sha256 = release.sha256;
   };
 
diff --git a/pkgs/games/dwarf-fortress/wrapper/dwarf-fortress-init.in b/pkgs/games/dwarf-fortress/wrapper/dwarf-fortress-init.in
index 054935af012..b041067d89e 100644
--- a/pkgs/games/dwarf-fortress/wrapper/dwarf-fortress-init.in
+++ b/pkgs/games/dwarf-fortress/wrapper/dwarf-fortress-init.in
@@ -1,6 +1,6 @@
 shopt -s extglob
 
-[ -z "$DF_DIR" ] && DF_DIR="${XDG_DATA_HOME:-$HOME/.local/share}/df_linux"
+[ -z "$DF_DIR" ] && export DF_DIR="${XDG_DATA_HOME:-$HOME/.local/share}/df_linux"
 env_dir="@env@"
 exe="$env_dir/@exe@"
 
diff --git a/pkgs/games/easyrpg-player/default.nix b/pkgs/games/easyrpg-player/default.nix
index 1a540c6489c..79628d0d2ae 100644
--- a/pkgs/games/easyrpg-player/default.nix
+++ b/pkgs/games/easyrpg-player/default.nix
@@ -5,13 +5,13 @@
 
 stdenv.mkDerivation rec {
   pname = "easyrpg-player";
-  version = "0.6.2";
+  version = "0.6.2.1";
 
   src = fetchFromGitHub {
     owner = "EasyRPG";
     repo = "Player";
     rev = version;
-    sha256 = "1xjisqxmx1jc1afsr55hyr0l9v20gvchllby76pygkfkgifyidyp";
+    sha256 = "19wpjvlkjmjhdv1dbph6i2da1xx479zhr532x0ili1aphw1j9hi6";
   };
 
   nativeBuildInputs = [ cmake doxygen pkgconfig ];
diff --git a/pkgs/games/eduke32/default.nix b/pkgs/games/eduke32/default.nix
index 60abe296467..53baac79eed 100644
--- a/pkgs/games/eduke32/default.nix
+++ b/pkgs/games/eduke32/default.nix
@@ -12,7 +12,7 @@ let
     comment = "Duke Nukem 3D port";
     desktopName = "Enhanced Duke Nukem 3D";
     genericName = "Duke Nukem 3D port";
-    categories = "Application;Game;";
+    categories = "Game;";
   };
 
   wrapper = "eduke32-wrapper";
diff --git a/pkgs/games/eidolon/default.nix b/pkgs/games/eidolon/default.nix
index 5461304d334..e982c95c4d6 100644
--- a/pkgs/games/eidolon/default.nix
+++ b/pkgs/games/eidolon/default.nix
@@ -20,7 +20,7 @@ rustPlatform.buildRustPackage rec {
     description = "A single TUI-based registry for drm-free, wine and steam games on linux, accessed through a rofi launch menu";
     homepage = "https://github.com/nicohman/eidolon";
     license = licenses.gpl3;
-    maintainers = [ maintainers."0x4A6F" ];
+    maintainers = with maintainers; [ _0x4A6F ];
     platforms = platforms.linux;
   };
 }
diff --git a/pkgs/games/empty-epsilon/default.nix b/pkgs/games/empty-epsilon/default.nix
index 73d42c65008..098ed35406f 100644
--- a/pkgs/games/empty-epsilon/default.nix
+++ b/pkgs/games/empty-epsilon/default.nix
@@ -3,8 +3,8 @@
 let
 
   major = "2020";
-  minor = "04";
-  patch = "09";
+  minor = "08";
+  patch = "07";
 
   version = "${major}.${minor}.${patch}";
 
@@ -16,7 +16,7 @@ let
       owner = "daid";
       repo = "SeriousProton";
       rev = "EE-${version}";
-      sha256 = "0blqsii8pgxajargd1idry2zakhnvl7j309yjmddarpvafg73blj";
+      sha256 = "1mfizhmwh6xgb5n34l3wrbxm21f7gsvsyacsmnxw9rkz0ya7ch30";
     };
 
     nativeBuildInputs = [ cmake ];
@@ -42,7 +42,7 @@ stdenv.mkDerivation {
     owner = "daid";
     repo = "EmptyEpsilon";
     rev = "EE-${version}";
-    sha256 = "1hdni8m6m7bgx11scqqqzhcjrmrl0jsxb6cr6rvjbqnahzi23slr";
+    sha256 = "0p41wx9yk09xjmfkjpdgi3b2999ps2am3xqwd866q11f6ci7viv5";
   };
 
   nativeBuildInputs = [ cmake ];
diff --git a/pkgs/games/endgame-singularity/default.nix b/pkgs/games/endgame-singularity/default.nix
index 46f21629ca3..4e855dbd053 100644
--- a/pkgs/games/endgame-singularity/default.nix
+++ b/pkgs/games/endgame-singularity/default.nix
@@ -1,46 +1,38 @@
-{ stdenv, fetchurl, unzip, python2 }:
+{ stdenv
+, fetchurl
+, fetchFromGitHub
+, unzip
+, python3
+, enableDefaultMusicPack ? true
+}:
 
-python2.pkgs.buildPythonApplication rec {
+python3.pkgs.buildPythonApplication rec {
   pname = "endgame-singularity";
-  version = "0.30c";
-  format = "other";
+  version = "1.00";
 
   srcs = [
-    (fetchurl {
-      url = "http://www.emhsoft.com/singularity/singularity-${version}-src.tar.gz";
-      sha256 = "13zjhf67gmla67nkfpxb01rxs8j9n4hs0s4n9lnnq4zgb709yxgl";
+    (fetchFromGitHub {
+      owner = "singularity";
+      repo = "singularity";
+      rev = "v${version}";
+      sha256 = "0ndrnxwii8lag6vrjpwpf5n36hhv223bb46d431l9gsigbizv0hl";
     })
-    (fetchurl {
+  ] ++ stdenv.lib.optional enableDefaultMusicPack (
+    fetchurl {
       url = "http://www.emhsoft.com/singularity/endgame-singularity-music-007.zip";
       sha256 = "0vf2qaf66jh56728pq1zbnw50yckjz6pf6c6qw6dl7vk60kkqnpb";
-    })
-  ];
-  sourceRoot = ".";
+    }
+  );
+  sourceRoot = "source";
 
   nativeBuildInputs = [ unzip ]; # The music is zipped
-  propagatedBuildInputs = with python2.pkgs; [ pygame numpy ];
-
-  # This is not an error: it needs both compilation rounds
-  buildPhase = ''
-    ${python2.interpreter} -m compileall "singularity-${version}"
-    ${python2.interpreter} -O -m compileall "singularity-${version}"
-  '';
-
-  installPhase = ''
-    install -Dm755 "singularity-${version}/singularity.py"  "$out/share/singularity.py"
-    install -Dm644 "singularity-${version}/singularity.pyo" "$out/share/singularity.pyo"
-    install -Dm644 "singularity-${version}/singularity.pyc" "$out/share/singularity.pyc"
-    cp -R "singularity-${version}/code" "singularity-${version}/data" "$out/share/"
-    cp -R "endgame-singularity-music-007" "$out/share/music"
-  '';
+  propagatedBuildInputs = with python3.pkgs; [ pygame numpy polib ];
 
-  # Tell it where to find python libraries
-  # Also cd to the same directory as the code, since it uses relative paths
-  postFixup = ''
-    makeWrapper "${python2.interpreter}" "$out/bin/endgame-singularity" \
-          --set PYTHONPATH "$PYTHONPATH" \
-          --run "cd \"$out/share\"" \
-          --add-flags "$out/share/singularity.py"
+  # Add the music
+  postInstall = stdenv.lib.optionalString enableDefaultMusicPack ''
+    cp -R "../endgame-singularity-music-007" \
+          "$(echo $out/lib/python*/site-packages/singularity)/music"
+          # ↑ we cannot glob on [...]/music, it doesn't exist yet
   '';
 
   meta = {
diff --git a/pkgs/games/factorio/default.nix b/pkgs/games/factorio/default.nix
index fde3d31716e..0226acf1604 100644
--- a/pkgs/games/factorio/default.nix
+++ b/pkgs/games/factorio/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, makeWrapper
+{ stdenv, fetchurl, makeWrapper, makeDesktopItem
 , alsaLib, libpulseaudio, libX11, libXcursor, libXinerama, libXrandr, libXi, libGL
 , libSM, libICE, libXext, factorio-utils
 , releaseType
@@ -45,6 +45,16 @@ let
     Note the ultimate "_" is replaced with "-" in the --name arg!
   '';
 
+  desktopItem = makeDesktopItem {
+    name = "factorio";
+    desktopName = "Factorio";
+    comment = "A game in which you build and maintain factories.";
+    exec = "factorio";
+    icon = "factorio";
+    type = "Application";
+    categories = "Game";
+  };
+
   branch = if experimental then "experimental" else "stable";
 
   # NB `experimental` directs us to take the latest build, regardless of its branch;
@@ -52,15 +62,15 @@ let
   binDists = {
     x86_64-linux = let bdist = bdistForArch { inUrl = "linux64"; inTar = "x64"; }; in {
       alpha = {
-        stable        = bdist { sha256 = "1fg2wnia6anzya4m53jf2xqwwspvwskz3awdb3j0v3fzijps94wc"; version = "0.17.79"; withAuth = true; };
-        experimental  = bdist { sha256 = "0dm2s8iz7247i3j8cl5f4i3kipnmn5514gm21p7b4ahj6fhpc7pf"; version = "0.18.30"; withAuth = true; };
+        stable        = bdist { sha256 = "0zixscff0svpb0yg8nzczp2z4filqqxi1k0z0nrpzn2hhzhf1464"; version = "1.0.0"; withAuth = true; };
+        experimental  = bdist { sha256 = "0zixscff0svpb0yg8nzczp2z4filqqxi1k0z0nrpzn2hhzhf1464"; version = "1.0.0"; withAuth = true; };
       };
       headless = {
-        stable        = bdist { sha256 = "1pr39nm23fj83jy272798gbl9003rgi4vgsi33f2iw3dk3x15kls"; version = "0.17.79"; };
-        experimental  = bdist { sha256 = "1c5jiqva2z58lghm6bhvjdj2n61xk8b8ss2hx80qsywgh3nqafr3"; version = "0.18.30"; };
+        stable        = bdist { sha256 = "0r0lplns8nxna2viv8qyx9mp4cckdvx6k20w2g2fwnj3jjmf3nc1"; version = "1.0.0"; };
+        experimental  = bdist { sha256 = "0r0lplns8nxna2viv8qyx9mp4cckdvx6k20w2g2fwnj3jjmf3nc1"; version = "1.0.0"; };
       };
       demo = {
-        stable        = bdist { sha256 = "07qknasaqvzl9vy1fglm7xmdi7ynhmslrb0a209fhbfs0s7qqlgi"; version = "0.17.79"; };
+        stable        = bdist { sha256 = "0h9cqbp143w47zcl4qg4skns4cngq0k40s5jwbk0wi5asjz8whqn"; version = "1.0.0"; };
       };
     };
     i686-linux = let bdist = bdistForArch { inUrl = "linux32"; inTar = "i386"; }; in {
@@ -166,7 +176,7 @@ let
       '';
       homepage = "https://www.factorio.com/";
       license = stdenv.lib.licenses.unfree;
-      maintainers = with stdenv.lib.maintainers; [ Baughn elitak erictapen ];
+      maintainers = with stdenv.lib.maintainers; [ Baughn elitak erictapen priegger ];
       platforms = [ "i686-linux" "x86_64-linux" ];
     };
   };
@@ -224,6 +234,11 @@ let
         ${updateConfigSh}
         EOF
         ) $out/share/factorio/update-config.sh
+
+        mkdir -p $out/share/icons/hicolor/{64x64,128x128}/apps
+        cp -a data/core/graphics/factorio-icon.png $out/share/icons/hicolor/64x64/apps/factorio.png
+        cp -a data/core/graphics/factorio-icon@2x.png $out/share/icons/hicolor/128x128/apps/factorio.png
+        ln -s ${desktopItem}/share/applications $out/share/
       '';
     };
     alpha = demo // {
diff --git a/pkgs/games/flightgear/default.nix b/pkgs/games/flightgear/default.nix
index c16c33666f3..e32f2e96d4f 100644
--- a/pkgs/games/flightgear/default.nix
+++ b/pkgs/games/flightgear/default.nix
@@ -6,15 +6,15 @@
 }:
 
 let
-  version = "2019.1.1";
+  version = "2020.1.2";
   shortVersion = builtins.substring 0 6 version;
   data = stdenv.mkDerivation rec {
-    pname = "flightgear-base";
+    pname = "flightgear-data";
     inherit version;
 
     src = fetchurl {
       url = "mirror://sourceforge/flightgear/release-${shortVersion}/FlightGear-${version}-data.tar.bz2";
-      sha256 = "14zm0hzshbca4ych72631hpc4pw2w24zib62ri3lwm8nz6j63qhf";
+      sha256 = "0ldsjb54k8nb99h6n4f4x20nawd2pa0a8skkwkrgckdpmdv0zwyk";
     };
 
     phases = [ "installPhase" ];
@@ -32,7 +32,7 @@ stdenv.mkDerivation rec {
 
   src = fetchurl {
     url = "mirror://sourceforge/flightgear/release-${shortVersion}/${pname}-${version}.tar.bz2";
-    sha256 = "189wal08p9lrz757pmazxnf85sfymsqrm3nfvdad95pfp6bg7pyi";
+    sha256 = "1770kgwa7z70sx6da9x1q9cszpd3ywz6nn8jrb6xv8ldjqcpqpvb";
   };
 
   # Of all the files in the source and data archives, there doesn't seem to be
diff --git a/pkgs/games/frogatto/default.nix b/pkgs/games/frogatto/default.nix
index 35ff9706112..efcff024a54 100644
--- a/pkgs/games/frogatto/default.nix
+++ b/pkgs/games/frogatto/default.nix
@@ -12,7 +12,7 @@ let
     comment = description;
     desktopName = "Frogatto";
     genericName = "frogatto";
-    categories = "Application;Game;ArcadeGame;";
+    categories = "Game;ArcadeGame;";
   };
   version = "unstable-2018-12-18";
 in buildEnv {
diff --git a/pkgs/games/frotz/default.nix b/pkgs/games/frotz/default.nix
index 40b6748693d..800da177a3d 100644
--- a/pkgs/games/frotz/default.nix
+++ b/pkgs/games/frotz/default.nix
@@ -1,25 +1,40 @@
-{ stdenv, fetchFromGitHub, ncurses }:
+{ fetchFromGitLab
+, libao
+, libmodplug
+, libsamplerate
+, libsndfile
+, libvorbis
+, ncurses
+, stdenv }:
 
 stdenv.mkDerivation rec {
-  version = "2.44";
+  version = "2.52";
   pname = "frotz";
 
-  src = fetchFromGitHub {
+  src = fetchFromGitLab {
+    domain = "gitlab.com";
     owner = "DavidGriffith";
     repo = "frotz";
     rev = version;
-    sha256 = "0gjkk4gxzqmxfdirrz2lr0bms6l9fc31vkmlywigkbdlh8wxgypp";
+    sha256 = "11ca1dz31b7s5vxjqncwjwmbbcr2m5v2rxjn49g4gnvwd6mqw48y";
   };
 
-  makeFlags = [ "CC=cc" "PREFIX=$(out)" "CURSES=-lncurses" ];
-
-  buildInputs = [ ncurses ];
+  buildInputs = [ libao libmodplug libsamplerate libsndfile libvorbis ncurses ];
+  preBuild = ''
+    makeFlagsArray+=(
+      CC="cc"
+      CFLAGS="-D_DEFAULT_SOURCE -D_XOPEN_SOURCE=600"
+      LDFLAGS="-lncursesw -ltinfo"
+    )
+  '';
+  installFlags = [ "PREFIX=$(out)" ];
 
   meta = with stdenv.lib; {
-    homepage = "http://frotz.sourceforge.net/";
+    homepage = "https://davidgriffith.gitlab.io/frotz/";
+    changelog = "https://gitlab.com/DavidGriffith/frotz/-/raw/${version}/NEWS";
     description = "A z-machine interpreter for Infocom games and other interactive fiction.";
     platforms = platforms.unix;
-    maintainers = [ maintainers.nicknovitski ];
+    maintainers = with maintainers; [ nicknovitski  ddelabru ];
     license = licenses.gpl2;
   };
 }
diff --git a/pkgs/games/gargoyle/default.nix b/pkgs/games/gargoyle/default.nix
index 8c5675407d0..c4c512be2b8 100644
--- a/pkgs/games/gargoyle/default.nix
+++ b/pkgs/games/gargoyle/default.nix
@@ -19,14 +19,15 @@ let
 
 in
 
-stdenv.mkDerivation {
-  name = "gargoyle-2018-10-06";
+stdenv.mkDerivation rec {
+  pname = "gargoyle";
+  version = "2019.1.1";
 
   src = fetchFromGitHub {
     owner = "garglk";
     repo = "garglk";
-    rev = "d03391563fa75942fbf8f8deeeacf3a8be9fc3b0";
-    sha256 = "0icwgc25gp7krq6zf66hljydc6vps6bb4knywnrfgnfcmcalqqx9";
+    rev = version;
+    sha256 = "0w54avmbp4i4zps2rb4acmpa641s6wvwbrln4vbdhcz97fx48nzz";
   };
 
   nativeBuildInputs = [ jam pkgconfig ] ++ stdenv.lib.optional stdenv.isDarwin cctools;
diff --git a/pkgs/games/gnome-hexgl/default.nix b/pkgs/games/gnome-hexgl/default.nix
index 6212c1bbec1..cfa9a0b81d0 100644
--- a/pkgs/games/gnome-hexgl/default.nix
+++ b/pkgs/games/gnome-hexgl/default.nix
@@ -2,7 +2,7 @@
 , fetchFromGitHub
 , ninja
 , meson
-, pkgconfig
+, pkg-config
 , gthree
 , gsound
 , epoxy
@@ -11,19 +11,19 @@
 
 stdenv.mkDerivation rec {
   pname = "gnome-hexgl";
-  version = "0.2.0";
+  version = "unstable-2020-07-24";
 
   src = fetchFromGitHub {
     owner = "alexlarsson";
     repo = "gnome-hexgl";
-    rev = version;
-    sha256 = "08iy2iciscd2wbhh6v4cpghx8r94v1ffbgla9yb3bcsdhlag0iw4";
+    rev = "f47a351055a235730795341dcd6b2397cc4bfa0c";
+    sha256 = "yZWGymaSUfnCP8VAEdDH64w0muSnRK/XPi1/IqTrE4k=";
   };
 
   nativeBuildInputs = [
     ninja
     meson
-    pkgconfig
+    pkg-config
   ];
 
   buildInputs = [
diff --git a/pkgs/games/gzdoom/default.nix b/pkgs/games/gzdoom/default.nix
index e6f27eedbb9..fdbdda2d313 100644
--- a/pkgs/games/gzdoom/default.nix
+++ b/pkgs/games/gzdoom/default.nix
@@ -1,55 +1,85 @@
-{ stdenv, fetchFromGitHub, cmake, makeWrapper
-, openal, fluidsynth_1, soundfont-fluid, libGL, SDL2
-, bzip2, zlib, libjpeg, libsndfile, mpg123, game-music-emu }:
+{ stdenv, fetchFromGitHub, cmake, makeWrapper, openal, fluidsynth_1
+, soundfont-fluid, libGL, SDL2, bzip2, zlib, libjpeg, libsndfile, mpg123
+, game-music-emu, pkgconfig }:
 
-stdenv.mkDerivation rec {
-  pname = "gzdoom";
-  version = "4.3.3";
-
-  src = fetchFromGitHub {
+let
+  zmusic-src = fetchFromGitHub {
     owner = "coelckers";
-    repo = "gzdoom";
-    rev = "g${version}";
-    sha256 = "1c4vhnvvwy1rs8xm01kqd486h5xsiccwkf95fjx7912zr49yalks";
+    repo = "zmusic";
+    rev = "2d0ea861174f9e2031400ab29f5bcc8425521cc6";
+    sha256 = "1ac7lhbzwfr0fsyv7n70hvb8imzngxn1qyanmv9j26j0h90hhl8a";
   };
+  zmusic = stdenv.mkDerivation {
+    pname = "zmusic";
+    version = "1.1.0";
+
+    src = zmusic-src;
+
+    nativeBuildInputs = [ cmake pkgconfig ];
+
+    preConfigure = ''
+      sed -i \
+        -e "s@/usr/share/sounds/sf2/@${soundfont-fluid}/share/soundfonts/@g" \
+        -e "s@FluidR3_GM.sf2@FluidR3_GM2-2.sf2@g" \
+        source/mididevices/music_fluidsynth_mididevice.cpp
+    '';
 
-  nativeBuildInputs = [ cmake makeWrapper ];
-  buildInputs = [
-    SDL2 libGL openal fluidsynth_1 bzip2 zlib libjpeg libsndfile mpg123
-    game-music-emu
-  ];
-
-  enableParallelBuilding = true;
-
-  NIX_CFLAGS_LINK = "-lopenal -lfluidsynth";
-
-  preConfigure = ''
-    sed -i \
-      -e "s@/usr/share/sounds/sf2/@${soundfont-fluid}/share/soundfonts/@g" \
-      -e "s@FluidR3_GM.sf2@FluidR3_GM2-2.sf2@g" \
-      libraries/zmusic/mididevices/music_fluidsynth_mididevice.cpp
-  '';
-
-  installPhase = ''
-    install -Dm755 gzdoom "$out/lib/gzdoom/gzdoom"
-    for i in *.pk3; do
-      install -Dm644 "$i" "$out/lib/gzdoom/$i"
-    done
-    for i in fm_banks/*; do
-      install -Dm644 "$i" "$out/lib/gzdoom/$i"
-    done
-    for i in soundfonts/*; do
-      install -Dm644 "$i" "$out/lib/gzdoom/$i"
-    done
-    mkdir $out/bin
-    makeWrapper $out/lib/gzdoom/gzdoom $out/bin/gzdoom
-  '';
-
-  meta = with stdenv.lib; {
-    homepage = "https://github.com/coelckers/gzdoom";
-    description = "A Doom source port based on ZDoom. It features an OpenGL renderer and lots of new features";
-    license = licenses.gpl3;
-    platforms = ["x86_64-linux"];
-    maintainers = with maintainers; [ lassulus ];
   };
-}
+
+  gzdoom = stdenv.mkDerivation rec {
+    pname = "gzdoom";
+    version = "4.4.2";
+
+    src = fetchFromGitHub {
+      owner = "coelckers";
+      repo = "gzdoom";
+      rev = "g${version}";
+      sha256 = "1xkkmbsdv64wyb9r2fv5mwyqw0bjryk528jghdrh47pndmjs9a38";
+      fetchSubmodules = true;
+    };
+
+    nativeBuildInputs = [ cmake makeWrapper pkgconfig ];
+    buildInputs = [
+      SDL2
+      libGL
+      openal
+      fluidsynth_1
+      bzip2
+      zlib
+      libjpeg
+      libsndfile
+      mpg123
+      game-music-emu
+      zmusic
+    ];
+
+    enableParallelBuilding = true;
+
+    NIX_CFLAGS_LINK = "-lopenal -lfluidsynth";
+
+    installPhase = ''
+      install -Dm755 gzdoom "$out/lib/gzdoom/gzdoom"
+      for i in *.pk3; do
+        install -Dm644 "$i" "$out/lib/gzdoom/$i"
+      done
+      for i in fm_banks/*; do
+        install -Dm644 "$i" "$out/lib/gzdoom/$i"
+      done
+      for i in soundfonts/*; do
+        install -Dm644 "$i" "$out/lib/gzdoom/$i"
+      done
+      mkdir $out/bin
+      makeWrapper $out/lib/gzdoom/gzdoom $out/bin/gzdoom
+    '';
+
+    meta = with stdenv.lib; {
+      homepage = "https://github.com/coelckers/gzdoom";
+      description =
+        "A Doom source port based on ZDoom. It features an OpenGL renderer and lots of new features";
+      license = licenses.gpl3;
+      platforms = [ "x86_64-linux" ];
+      maintainers = with maintainers; [ lassulus ];
+    };
+  };
+
+in gzdoom
diff --git a/pkgs/games/julius/default.nix b/pkgs/games/julius/default.nix
new file mode 100644
index 00000000000..d1dad86e1c5
--- /dev/null
+++ b/pkgs/games/julius/default.nix
@@ -0,0 +1,24 @@
+{ stdenv, fetchFromGitHub, cmake, SDL2, SDL2_mixer, libpng }:
+
+stdenv.mkDerivation rec {
+  pname = "julius";
+  version = "1.4.1";
+
+  src = fetchFromGitHub {
+    owner = "bvschaik";
+    repo = "julius";
+    rev = "v${version}";
+    sha256 = "12hhnhdwgz7hd3hlndbnk15pxggm1375qs0764ija4nl1gbpb110";
+  };
+
+  nativeBuildInputs = [ cmake ];
+  buildInputs = [ SDL2 SDL2_mixer libpng ];
+
+  meta = with stdenv.lib; {
+    description = "An open source re-implementation of Caesar III";
+    homepage = "https://github.com/bvschaik/julius";
+    license = licenses.agpl3;
+    platforms = platforms.all;
+    maintainers = with maintainers; [ Thra11 ];
+  };
+}
diff --git a/pkgs/games/katago/default.nix b/pkgs/games/katago/default.nix
index 0a9ebd9e3eb..492ccbb63ab 100644
--- a/pkgs/games/katago/default.nix
+++ b/pkgs/games/katago/default.nix
@@ -17,7 +17,7 @@
 , useTcmalloc ? true}:
 
 assert cudaSupport -> (
-  libGL_driver != null && 
+  libGL_driver != null &&
   cudatoolkit != null &&
   cudnn != null);
 
@@ -29,36 +29,21 @@ assert useTcmalloc -> (
   gperftools != null);
 
 let
-  env = if cudaSupport 
+  env = if cudaSupport
     then gcc8Stdenv
     else stdenv;
 
 in env.mkDerivation rec {
   pname = "katago";
-  version = "1.4.2";
+  version = "1.5.0";
 
   src = fetchFromGitHub {
     owner = "lightvector";
     repo = "katago";
-    rev = "v${version}";
-    sha256 = "0qdc9hgbzd175b2xkjs62dy6gyybcn9lf1mifiyhjbzjpgv192h4";
+    rev = "${version}";
+    sha256 = "0ajdjdmlzwh7zwk5v0k9zzjawgkf7w30pzqp5bhcsdqz4svvyll2";
   };
 
-  # To workaround CMake 3.17.0's new buggy behavior wrt CUDA Compiler testing
-  # See the following tracking issues:
-  # KataGo:
-  #  - Issue #225: https://github.com/lightvector/KataGo/issues/225
-  #  - PR #227: https://github.com/lightvector/KataGo/pull/227
-  # CMake:
-  #  - Issue #20708: https://gitlab.kitware.com/cmake/cmake/-/issues/20708
-  patches = [
-    (fetchpatch {
-      name = "227.patch";
-      url = "https://patch-diff.githubusercontent.com/raw/lightvector/KataGo/pull/227.patch";
-      sha256 = "03f1vmdjhb79mpj95sijcwla8acy32clrjgrn4xqw5h90zdgj511";
-    })
-  ];
-
   nativeBuildInputs = [
     cmake
     makeWrapper
diff --git a/pkgs/games/minecraft-server/default.nix b/pkgs/games/minecraft-server/default.nix
index d0ae0a59717..5ba4b4de2f6 100644
--- a/pkgs/games/minecraft-server/default.nix
+++ b/pkgs/games/minecraft-server/default.nix
@@ -1,12 +1,12 @@
 { stdenv, fetchurl, jre_headless }:
 stdenv.mkDerivation {
   pname = "minecraft-server";
-  version = "1.15.2";
+  version = "1.16.1";
 
   src = fetchurl {
-    url = "https://launcher.mojang.com/v1/objects/bb2b6b1aefcd70dfd1892149ac3a215f6c636b07/server.jar";
+    url = "https://launcher.mojang.com/v1/objects/a412fd69db1f81db3f511c1463fd304675244077/server.jar";
     # sha1 because that comes from mojang via api
-    sha1 = "bb2b6b1aefcd70dfd1892149ac3a215f6c636b07";
+    sha1 = "a412fd69db1f81db3f511c1463fd304675244077";
   };
 
   preferLocalBuild = true;
diff --git a/pkgs/games/minecraft/default.nix b/pkgs/games/minecraft/default.nix
index 650bb223c9a..9d23515c039 100644
--- a/pkgs/games/minecraft/default.nix
+++ b/pkgs/games/minecraft/default.nix
@@ -36,7 +36,7 @@ let
     icon = "minecraft-launcher";
     comment = "Official launcher for Minecraft, a sandbox-building game";
     desktopName = "Minecraft Launcher";
-    categories = "Game;Application;";
+    categories = "Game;";
   };
 
   envLibPath = stdenv.lib.makeLibraryPath [
@@ -87,11 +87,11 @@ in
 stdenv.mkDerivation rec {
   pname = "minecraft-launcher";
 
-  version = "2.1.14947";
+  version = "2.1.16102";
 
   src = fetchurl {
     url = "https://launcher.mojang.com/download/linux/x86_64/minecraft-launcher_${version}.tar.gz";
-    sha256 = "1lsc39n1kq08sssnpr6kf4lfpy01a7i7rgvi298mmxsprjmc7a9q";
+    sha256 = "17zgxmijk9mq651h7ymkr7h2099cw23kc0r7jyfkdccp60dfd60i";
   };
 
   icon = fetchurl {
@@ -134,6 +134,7 @@ stdenv.mkDerivation rec {
     makeWrapper $out/opt/minecraft-launcher/minecraft-launcher $out/bin/minecraft-launcher \
       --prefix LD_LIBRARY_PATH : ${envLibPath} \
       --prefix PATH : ${stdenv.lib.makeBinPath [ jre ]} \
+      --set JAVA_HOME ${stdenv.lib.makeBinPath [ jre ]} \
       --run "cd /tmp" \
       "''${gappsWrapperArgs[@]}"
   '';
diff --git a/pkgs/games/minetest/default.nix b/pkgs/games/minetest/default.nix
index db36b43ea29..f49ec1f4a82 100644
--- a/pkgs/games/minetest/default.nix
+++ b/pkgs/games/minetest/default.nix
@@ -39,7 +39,7 @@ let
     ] ++ optionals buildClient [
       "-DOpenGL_GL_PREFERENCE=GLVND"
     ];
-    
+
     NIX_CFLAGS_COMPILE = "-DluaL_reg=luaL_Reg"; # needed since luajit-2.1.0-beta3
 
     nativeBuildInputs = [ cmake doxygen graphviz ];
@@ -47,7 +47,7 @@ let
     buildInputs = [
       irrlicht luajit jsoncpp gettext freetype sqlite curl bzip2 ncurses
       gmp libspatialindex
-    ] ++ optionals stdenv.isDarwin [ 
+    ] ++ optionals stdenv.isDarwin [
       libiconv OpenGL OpenAL Carbon Cocoa
     ] ++ optionals buildClient [
       libpng libjpeg libGLU libGL openal libogg libvorbis xorg.libX11 libXxf86vm
@@ -76,9 +76,9 @@ let
   };
 
   v5 = {
-    version = "5.2.0";
-    sha256 = "0pj9hkxwc1vzng2khbixi79557sbawf6mqkzl589jciyqa7jqkv1";
-    dataSha256 = "1kjz7x3xiqqnpyrd6339a139pbdxx31c4qpg8pmns410hsm8i358";
+    version = "5.3.0";
+    sha256 = "03ga3j3cg38w4lg4d4qxasmnjdl8n3lbizidrinanvyfdyvznyh6";
+    dataSha256 = "1liciwlh013z5h08ib0psjbwn5wkvlr937ir7kslfk4vly984cjx";
   };
 
 in {
diff --git a/pkgs/games/mnemosyne/default.nix b/pkgs/games/mnemosyne/default.nix
index 44bd396e9fa..4a92b8c1014 100644
--- a/pkgs/games/mnemosyne/default.nix
+++ b/pkgs/games/mnemosyne/default.nix
@@ -5,11 +5,11 @@
 
 python.pkgs.buildPythonApplication rec {
   pname = "mnemosyne";
-  version = "2.7.1";
+  version = "2.7.2";
 
   src = fetchurl {
     url    = "mirror://sourceforge/project/mnemosyne-proj/mnemosyne/mnemosyne-${version}/Mnemosyne-${version}.tar.gz";
-    sha256 = "0dhvg9cxc6m6kzk75h363h1g0bl80cqz11cijh0zpz9f4w6lnqsq";
+    sha256 = "09yp9zc00xrc9dmjbsscnkb3hsv3yj46sxikc0r6s9cbghn3nypy";
   };
 
   nativeBuildInputs = with python.pkgs; [ pyqtwebengine.wrapQtAppsHook ];
diff --git a/pkgs/games/mudlet/default.nix b/pkgs/games/mudlet/default.nix
index 75d16586a39..b73af4515d3 100644
--- a/pkgs/games/mudlet/default.nix
+++ b/pkgs/games/mudlet/default.nix
@@ -6,14 +6,14 @@ let
 in
 stdenv.mkDerivation rec {
   pname = "mudlet";
-  version = "4.3";
+  version = "4.9.1";
 
   src = fetchFromGitHub {
     owner = "Mudlet";
     repo = "Mudlet";
     rev = "Mudlet-${version}";
     fetchSubmodules = true;
-    sha256 = "0qqdmivfwf9jmv5yx90z1fj99nlhnq762lfw6bcxgv74y4l4b4c0";
+    sha256 = "0i022qcmlq4xwl2yh4xd5qdc0ag52605qmqqz6bim0h8f3dp8cx1";
   };
 
   nativeBuildInputs = [ cmake wrapQtAppsHook git qttools which ];
diff --git a/pkgs/games/ninvaders/default.nix b/pkgs/games/ninvaders/default.nix
index 009cb1e548f..26462c1eef5 100644
--- a/pkgs/games/ninvaders/default.nix
+++ b/pkgs/games/ninvaders/default.nix
@@ -17,7 +17,7 @@ stdenv.mkDerivation rec {
     description = "Space Invaders clone based on ncurses";
     homepage = "http://ninvaders.sourceforge.net/";
     license = licenses.gpl2;
-    maintainers = with maintainers; [ maintainers."1000101" ];
+    maintainers = with maintainers; [ _1000101 ];
     platforms = platforms.all;
   };
 }
diff --git a/pkgs/games/openjk/default.nix b/pkgs/games/openjk/default.nix
index 2d08a1da999..0fe327b308e 100644
--- a/pkgs/games/openjk/default.nix
+++ b/pkgs/games/openjk/default.nix
@@ -21,13 +21,13 @@ let
   };
 in stdenv.mkDerivation {
   pname = "OpenJK";
-  version = "2019-11-29";
+  version = "2020-07-03";
 
   src = fetchFromGitHub {
     owner = "JACoders";
     repo = "OpenJK";
-    rev = "eed60925ad1b0d513d3747264f3bf98615fa4b2a";
-    sha256 = "0b33cr540vz7w7dlagqf3yldmyx9y2pri20j44pd8fxapq4krrmb";
+    rev = "0a336ce4dffe6505e3f754b59732402a1db95752";
+    sha256 = "1xagbz42hi3ivs208mnay2dbgh90pmwwbar2p1yfhj3zl3cghcs8";
   };
 
   dontAddPrefix = true;
diff --git a/pkgs/games/openmw/default.nix b/pkgs/games/openmw/default.nix
index cae97dc4215..22f3ea8d6ad 100644
--- a/pkgs/games/openmw/default.nix
+++ b/pkgs/games/openmw/default.nix
@@ -6,19 +6,19 @@ let
     src = fetchFromGitHub {
       owner = "OpenMW";
       repo = "osg";
-      rev = "2b4c8e37268e595b82da4b9aadd5507852569b87";
-      sha256 = "0admnllxic6dcpic0h100927yw766ab55dix002vvdx36i6994jb";
+      rev = "1556cd7966ebc1c80b6626988d2b25fb43a744cf";
+      sha256 = "0d74hijzmj82nx3jkv5qmr3pkgvplra0b8fbjx1y3vmzxamb0axd";
     };
   });
 in mkDerivationWith stdenv.mkDerivation rec {
-  version = "0.45.0";
+  version = "0.46.0";
   pname = "openmw";
 
   src = fetchFromGitHub {
     owner = "OpenMW";
     repo = "openmw";
     rev = "${pname}-${version}";
-    sha256 = "1r87zrsnza2v9brksh809zzqj6zhk5xj15qs8iq11v1bscm2a2j4";
+    sha256 = "0rm32zsmxvr6b0jjihfj543skhicbw5kg6shjx312clhlm035w2x";
   };
 
   enableParallelBuilding = true;
diff --git a/pkgs/games/openmw/tes3mp.nix b/pkgs/games/openmw/tes3mp.nix
index 59bdc690107..df332c0e5bf 100644
--- a/pkgs/games/openmw/tes3mp.nix
+++ b/pkgs/games/openmw/tes3mp.nix
@@ -1,4 +1,4 @@
-{ stdenv, cmake, openmw, fetchFromGitHub, luajit, makeWrapper }:
+{ stdenv, cmake, openmw, fetchFromGitHub, luajit, makeWrapper, mygui }:
 
 # revisions are taken from https://github.com/GrimKriegor/TES3MP-deploy
 
@@ -28,6 +28,17 @@ let
     rev = "24aae91d9ddad38cdb3b0e0a13af59f142803e94";
     sha256 = "1rfmxxr9ircfagdpbdrzl26msdhx1i3g974cblbv69078cradfh3";
   };
+  # https://github.com/TES3MP/openmw-tes3mp/issues/555
+  mygui_ = mygui.overrideAttrs (oldAttrs: rec {
+    version = "3.2.2";
+
+    src = fetchFromGitHub {
+      owner = "MyGUI";
+      repo = "mygui";
+      rev = "MyGUI${version}";
+      sha256 = "1wk7jmwm55rhlqqcyvqsxdmwvl70bysl9azh4kd9n57qlmgk3zmw";
+    };
+  });
 in openmw.overrideAttrs (oldAttrs: rec {
   version = "2019-11-19";
   name = "openmw-tes3mp-${version}";
@@ -41,7 +52,7 @@ in openmw.overrideAttrs (oldAttrs: rec {
   };
 
   nativeBuildInputs = oldAttrs.nativeBuildInputs ++ [ makeWrapper ];
-  buildInputs = oldAttrs.buildInputs ++ [ luajit ];
+  buildInputs = [ luajit mygui_ ] ++ oldAttrs.buildInputs;
 
   cmakeFlags = oldAttrs.cmakeFlags ++ [
     "-DBUILD_OPENCS=OFF"
@@ -50,7 +61,7 @@ in openmw.overrideAttrs (oldAttrs: rec {
     "-DRakNet_LIBRARY_DEBUG=${rakNetLibrary}/lib/libRakNetLibStatic.a"
   ];
 
-  # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95175
+  # https://github.com/TES3MP/openmw-tes3mp/issues/552
   patches = [
     ./tes3mp.patch
   ];
diff --git a/pkgs/games/openrct2/default.nix b/pkgs/games/openrct2/default.nix
index b519e0c7e92..45133be461c 100644
--- a/pkgs/games/openrct2/default.nix
+++ b/pkgs/games/openrct2/default.nix
@@ -1,23 +1,23 @@
-{ stdenv, fetchFromGitHub,
-  SDL2, cmake, curl, fontconfig, freetype, icu, jansson, libiconv, libpng,
-  libpthreadstubs, libzip, libGLU, openssl, pkgconfig, speexdsp, zlib
+{ stdenv, fetchFromGitHub
+, SDL2, cmake, curl, duktape, fontconfig, freetype, icu, jansson, libGLU
+, libiconv, libpng, libpthreadstubs, libzip, openssl, pkgconfig, speexdsp, zlib
 }:
 
 let
-  version = "0.2.6";
+  version = "0.3.0";
 
   openrct2-src = fetchFromGitHub {
     owner = "OpenRCT2";
     repo = "OpenRCT2";
     rev = "v${version}";
-    sha256 = "1vikbkg3wh5ngzdfilb6irbh6nqinf138qpdz8wz9izlvl8s36k4";
+    sha256 = "0xs8pnn3lq30iy76pv42hywsrabapcrrkl597dhjafwh1xaxxj91";
   };
 
   objects-src = fetchFromGitHub {
     owner = "OpenRCT2";
     repo = "objects";
-    rev = "v1.0.14";
-    sha256 = "1bqbia5y73v4r0sv5cvi5729jh2ns7cxn557blh715yxswk91590";
+    rev = "v1.0.16";
+    sha256 = "1xz50ghiqj9rm0m6d65j09ich6dlhyj36zah6zvmmzr4kg6svnk5";
   };
 
   title-sequences-src = fetchFromGitHub {
@@ -41,15 +41,16 @@ stdenv.mkDerivation {
   buildInputs = [
     SDL2
     curl
+    duktape
     fontconfig
     freetype
     icu
     jansson
+    libGLU
     libiconv
     libpng
     libpthreadstubs
     libzip
-    libGLU
     openssl
     speexdsp
     zlib
@@ -57,7 +58,7 @@ stdenv.mkDerivation {
 
   postUnpack = ''
     cp -r ${objects-src}         $sourceRoot/data/object
-    cp -r ${title-sequences-src} $sourceRoot/data/title
+    cp -r ${title-sequences-src} $sourceRoot/data/sequence
   '';
 
   cmakeFlags = [
@@ -74,6 +75,6 @@ stdenv.mkDerivation {
     homepage = "https://openrct2.io/";
     license = licenses.gpl3;
     platforms = platforms.linux;
-    maintainers = with maintainers; [ geistesk ];
+    maintainers = with maintainers; [ oxzi ];
   };
 }
diff --git a/pkgs/games/openttd/default.nix b/pkgs/games/openttd/default.nix
index 223f0a6ae8c..bab4e510e7d 100644
--- a/pkgs/games/openttd/default.nix
+++ b/pkgs/games/openttd/default.nix
@@ -29,11 +29,11 @@ let
 in
 stdenv.mkDerivation rec {
   pname = "openttd";
-  version = "1.10.2";
+  version = "1.10.3";
 
   src = fetchurl {
     url = "https://cdn.openttd.org/openttd-releases/${version}/${pname}-${version}-source.tar.xz";
-    sha256 = "1xdn9rr858nq22a13cpbhcw74bwygf7lw95kvx3wn4zvb795b74k";
+    sha256 = "0fxmfz1mm95a2x0rnzfff9wb8q57w0cvsdd0z7agdcbyakph25n1";
   };
 
   nativeBuildInputs = [ pkgconfig which makeWrapper ];
diff --git a/pkgs/games/openttd/jgrpp.nix b/pkgs/games/openttd/jgrpp.nix
new file mode 100644
index 00000000000..83a8f927694
--- /dev/null
+++ b/pkgs/games/openttd/jgrpp.nix
@@ -0,0 +1,13 @@
+{ fetchFromGitHub, openttd, ... }:
+
+openttd.overrideAttrs (oldAttrs: rec {
+  pname = "openttd-jgrpp";
+  version = "0.34.4";
+
+  src = fetchFromGitHub rec {
+    owner = "JGRennison";
+    repo = "OpenTTD-patches";
+    rev = "jgrpp-${version}";
+    sha256 = "125mgia5hgcsn8314xyiip3z8y23rc3kdv7jczbncqlzsc75624v";
+  };
+})
diff --git a/pkgs/games/openxray/default.nix b/pkgs/games/openxray/default.nix
index 9e38852a02a..fe2e978c4cc 100644
--- a/pkgs/games/openxray/default.nix
+++ b/pkgs/games/openxray/default.nix
@@ -3,13 +3,13 @@
 , pcre, makeWrapper }:
 
 let
-  version = "558";
+  version = "730-july-preview";
 
   src = fetchFromGitHub {
     owner = "OpenXRay";
     repo = "xray-16";
     rev = version;
-    sha256 = "1wnkx9g0ww4f5pljrb0wzs054jzkig1i5hlz1p509rfvnhc50afp";
+    sha256 = "1nish3sbpk0hsag7r4nyx8j6pl9mlgx58v8dhzg2vwj2q32isyb2";
     fetchSubmodules = true;
   };
 
@@ -40,7 +40,6 @@ in stdenv.mkDerivation rec {
 
   hardeningDisable = [ "format" ];
   cmakeFlags = [ "-DCMAKE_INCLUDE_PATH=${cryptopp}/include/cryptopp" ];
-  installFlags = [ "DESTDIR=${placeholder "out"}" ];
 
   buildInputs = [
     glew freeimage liblockfile openal cryptopp libtheora SDL2 lzo
@@ -54,11 +53,6 @@ in stdenv.mkDerivation rec {
   '';
 
   postInstall = ''
-    mv $out/var/empty/* $out
-    install -Dm755 $out/games/xr_3da $out/bin/xr_3da
-    install -Dm644 $src/License.txt $out/share/licenses/openxray/License.txt
-    rm -r $out/var $out/games
-
     # needed because of SDL_LoadObject library loading code
     wrapProgram $out/bin/xr_3da \
       --prefix LD_LIBRARY_PATH : $out/lib
diff --git a/pkgs/games/osu-lazer/bypass-tamper-detection.patch b/pkgs/games/osu-lazer/bypass-tamper-detection.patch
new file mode 100644
index 00000000000..576f83a96c5
--- /dev/null
+++ b/pkgs/games/osu-lazer/bypass-tamper-detection.patch
@@ -0,0 +1,23 @@
+diff --git a/osu.Game/OsuGameBase.cs b/osu.Game/OsuGameBase.cs

+index 98f60d52d..a27ce47ca 100644

+--- a/osu.Game/OsuGameBase.cs

++++ b/osu.Game/OsuGameBase.cs

+@@ -135,17 +135,7 @@ public OsuGameBase()

+         [BackgroundDependencyLoader]

+         private void load()

+         {

+-            try

+-            {

+-                using (var str = File.OpenRead(typeof(OsuGameBase).Assembly.Location))

+-                    VersionHash = str.ComputeMD5Hash();

+-            }

+-            catch

+-            {

+-                // special case for android builds, which can't read DLLs from a packed apk.

+-                // should eventually be handled in a better way.

+-                VersionHash = $"{Version}-{RuntimeInfo.OS}".ComputeMD5Hash();

+-            }

++            VersionHash = "253aa3a3a356a71295bf5b018cd4fda1";

+ 

+             Resources.AddStore(new DllResourceStore(OsuResources.ResourceAssembly));

+ 

diff --git a/pkgs/games/osu-lazer/default.nix b/pkgs/games/osu-lazer/default.nix
new file mode 100644
index 00000000000..59e044b482b
--- /dev/null
+++ b/pkgs/games/osu-lazer/default.nix
@@ -0,0 +1,111 @@
+{ lib, stdenv, fetchFromGitHub, fetchurl, makeWrapper, makeDesktopItem, linkFarmFromDrvs
+, dotnet-sdk, dotnet-netcore, dotnetPackages
+, ffmpeg_4, alsaLib, SDL2, lttng-ust, numactl, alsaPlugins
+}:
+
+let
+  runtimeDeps = [
+    ffmpeg_4 alsaLib SDL2 lttng-ust numactl
+  ];
+
+  # https://docs.microsoft.com/en-us/dotnet/core/rid-catalog#using-rids
+  runtimeId = "linux-x64";
+
+in stdenv.mkDerivation rec {
+  pname = "osu-lazer";
+  version = "2020.806.0";
+
+  src = fetchFromGitHub {
+    owner = "ppy";
+    repo = "osu";
+    rev = version;
+    sha256 = "BelmqcDnrGH84fTs6M0krwWz6SHn2hOm7y+PNEOOOZM=";
+  };
+
+  patches = [ ./bypass-tamper-detection.patch ];
+  patchFlags = [ "--binary" "-p1" ];
+
+  nativeBuildInputs = [ dotnet-sdk dotnetPackages.Nuget makeWrapper ];
+
+  nugetDeps = linkFarmFromDrvs "${pname}-nuget-deps" (import ./deps.nix {
+    fetchNuGet = { name, version, sha256 }: fetchurl {
+      name = "nuget-${name}-${version}.nupkg";
+      url = "https://www.nuget.org/api/v2/package/${name}/${version}";
+      inherit sha256;
+    };
+  });
+
+  configurePhase = ''
+    runHook preConfigure
+
+    export HOME=$(mktemp -d)
+    export DOTNET_CLI_TELEMETRY_OPTOUT=1
+    export DOTNET_SKIP_FIRST_TIME_EXPERIENCE=1
+
+    nuget sources Add -Name nixos -Source "$PWD/nixos"
+    nuget init "$nugetDeps" "$PWD/nixos"
+
+    # FIXME: https://github.com/NuGet/Home/issues/4413
+    mkdir -p $HOME/.nuget/NuGet
+    cp $HOME/.config/NuGet/NuGet.Config $HOME/.nuget/NuGet
+
+    dotnet restore --source nixos osu.Desktop
+
+    runHook postConfigure
+  '';
+
+  buildPhase = ''
+    runHook preBuild
+    dotnet build osu.Desktop \
+      --no-restore \
+      --configuration Release \
+      -p:Version=${version}
+    runHook postBuild
+  '';
+
+  installPhase = ''
+    runHook preInstall
+
+    dotnet publish osu.Desktop \
+      --no-build \
+      --configuration Release \
+      --no-self-contained \
+      --output $out/lib/osu
+    shopt -s extglob
+    rm -r $out/lib/osu/runtimes/!(${runtimeId})
+
+    makeWrapper $out/lib/osu/osu\! $out/bin/osu\! \
+      --set DOTNET_ROOT "${dotnet-netcore}" \
+      --suffix LD_LIBRARY_PATH : "${lib.makeLibraryPath runtimeDeps}"
+    for i in 16 32 48 64 96 128 256 512 1024; do
+      install -D ./assets/lazer.png $out/share/icons/hicolor/''${i}x$i/apps/osu\!.png
+    done
+    cp -r ${makeDesktopItem {
+      desktopName = "osu!";
+      name = "osu";
+      exec = "osu!";
+      icon = "osu!";
+      comment = meta.description;
+      type = "Application";
+      categories = "Game;";
+    }}/share/applications $out/share
+
+    runHook postInstall
+  '';
+
+  # Strip breaks the executable.
+  dontStrip = true;
+
+  meta = with lib; {
+    description = "Rhythm is just a *click* away";
+    homepage = "https://osu.ppy.sh";
+    license = with licenses; [
+      mit
+      cc-by-nc-40
+      unfreeRedistributable # osu-framework contains libbass.so in repository
+    ];
+    maintainers = with maintainers; [ oxalica ];
+    platforms = [ "x86_64-linux" ];
+  };
+  passthru.updateScript = ./update.sh;
+}
diff --git a/pkgs/games/osu-lazer/deps.nix b/pkgs/games/osu-lazer/deps.nix
new file mode 100644
index 00000000000..c29035e5724
--- /dev/null
+++ b/pkgs/games/osu-lazer/deps.nix
@@ -0,0 +1,1517 @@
+{ fetchNuGet }: [
+  (fetchNuGet {
+    name = "Dapper";
+    version = "2.0.35";
+    sha256 = "0465i2p5kjj0hmadyw0xrpn43zpc4bnbid9mg561739fyjyjwmfm";
+  })
+  (fetchNuGet {
+    name = "DeltaCompressionDotNet";
+    version = "2.0.0.0";
+    sha256 = "0zhj7m3zaf9wcg51385in9qg1xgkvp8yyzgq3r5k4sagm7y68aqy";
+  })
+  (fetchNuGet {
+    name = "DiffPlex";
+    version = "1.6.3";
+    sha256 = "0yi72afddddz0s8phx855rnjrga7n51bcma10dc91l0ffcwf5xwz";
+  })
+  (fetchNuGet {
+    name = "DiscordRichPresence";
+    version = "1.0.150";
+    sha256 = "0qmbi4sccia3w80q8xfvj3bw62nvz047wq198n2b2aflkf47bq79";
+  })
+  (fetchNuGet {
+    name = "FFmpeg.AutoGen";
+    version = "4.3.0.1";
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+    name = "System.Text.Encoding.Extensions";
+    version = "4.3.0";
+    sha256 = "11q1y8hh5hrp5a3kw25cb6l00v5l5dvirkz8jr3sq00h1xgcgrxy";
+  })
+  (fetchNuGet {
+    name = "System.Text.RegularExpressions";
+    version = "4.1.0";
+    sha256 = "1mw7vfkkyd04yn2fbhm38msk7dz2xwvib14ygjsb8dq2lcvr18y7";
+  })
+  (fetchNuGet {
+    name = "System.Text.RegularExpressions";
+    version = "4.3.0";
+    sha256 = "1bgq51k7fwld0njylfn7qc5fmwrk2137gdq7djqdsw347paa9c2l";
+  })
+  (fetchNuGet {
+    name = "System.Threading";
+    version = "4.0.11";
+    sha256 = "19x946h926bzvbsgj28csn46gak2crv2skpwsx80hbgazmkgb1ls";
+  })
+  (fetchNuGet {
+    name = "System.Threading";
+    version = "4.3.0";
+    sha256 = "0rw9wfamvhayp5zh3j7p1yfmx9b5khbf4q50d8k5rk993rskfd34";
+  })
+  (fetchNuGet {
+    name = "System.Threading.Tasks";
+    version = "4.0.11";
+    sha256 = "0nr1r41rak82qfa5m0lhk9mp0k93bvfd7bbd9sdzwx9mb36g28p5";
+  })
+  (fetchNuGet {
+    name = "System.Threading.Tasks";
+    version = "4.3.0";
+    sha256 = "134z3v9abw3a6jsw17xl3f6hqjpak5l682k2vz39spj4kmydg6k7";
+  })
+  (fetchNuGet {
+    name = "System.Threading.Tasks.Extensions";
+    version = "4.0.0";
+    sha256 = "1cb51z062mvc2i8blpzmpn9d9mm4y307xrwi65di8ri18cz5r1zr";
+  })
+  (fetchNuGet {
+    name = "System.Threading.Tasks.Extensions";
+    version = "4.3.0";
+    sha256 = "1xxcx2xh8jin360yjwm4x4cf5y3a2bwpn2ygkfkwkicz7zk50s2z";
+  })
+  (fetchNuGet {
+    name = "System.Threading.Tasks.Extensions";
+    version = "4.5.3";
+    sha256 = "0g7r6hm572ax8v28axrdxz1gnsblg6kszq17g51pj14a5rn2af7i";
+  })
+  (fetchNuGet {
+    name = "System.Threading.Thread";
+    version = "4.0.0";
+    sha256 = "1gxxm5fl36pjjpnx1k688dcw8m9l7nmf802nxis6swdaw8k54jzc";
+  })
+  (fetchNuGet {
+    name = "System.Threading.Timer";
+    version = "4.0.1";
+    sha256 = "15n54f1f8nn3mjcjrlzdg6q3520571y012mx7v991x2fvp73lmg6";
+  })
+  (fetchNuGet {
+    name = "System.Threading.Timer";
+    version = "4.3.0";
+    sha256 = "1nx773nsx6z5whv8kaa1wjh037id2f1cxhb69pvgv12hd2b6qs56";
+  })
+  (fetchNuGet {
+    name = "System.Xml.ReaderWriter";
+    version = "4.0.11";
+    sha256 = "0c6ky1jk5ada9m94wcadih98l6k1fvf6vi7vhn1msjixaha419l5";
+  })
+  (fetchNuGet {
+    name = "System.Xml.ReaderWriter";
+    version = "4.3.0";
+    sha256 = "0c47yllxifzmh8gq6rq6l36zzvw4kjvlszkqa9wq3fr59n0hl3s1";
+  })
+  (fetchNuGet {
+    name = "System.Xml.XDocument";
+    version = "4.0.11";
+    sha256 = "0n4lvpqzy9kc7qy1a4acwwd7b7pnvygv895az5640idl2y9zbz18";
+  })
+  (fetchNuGet {
+    name = "System.Xml.XDocument";
+    version = "4.3.0";
+    sha256 = "08h8fm4l77n0nd4i4fk2386y809bfbwqb7ih9d7564ifcxr5ssxd";
+  })
+]
diff --git a/pkgs/games/osu-lazer/update.sh b/pkgs/games/osu-lazer/update.sh
new file mode 100755
index 00000000000..be8fa3fe716
--- /dev/null
+++ b/pkgs/games/osu-lazer/update.sh
@@ -0,0 +1,58 @@
+#!/usr/bin/env nix-shell
+#!nix-shell -i bash -p curl jq common-updater-scripts dotnet-sdk_3
+set -eo pipefail
+cd "$(dirname "${BASH_SOURCE[0]}")"
+
+deps_file="$(realpath "./deps.nix")"
+
+new_version="$(curl -s "https://api.github.com/repos/ppy/osu/releases" | jq -r '.[0].name')"
+old_version="$(sed -nE 's/\s*version = "(.*)".*/\1/p' ./default.nix)"
+if [[ "$new_version" == "$old_version" ]]; then
+  echo "Up to date"
+  exit 0
+fi
+
+cd ../../..
+update-source-version osu-lazer "$new_version"
+store_src="$(nix-build . -A osu-lazer.src --no-out-link)"
+src="$(mktemp -d /tmp/osu-src.XXX)"
+echo "Temp src dir: $src"
+cp -rT "$store_src" "$src"
+chmod -R +w "$src"
+
+pushd "$src"
+
+# Setup empty nuget package folder to force reinstall.
+mkdir ./nuget_tmp.packages
+cat >./nuget_tmp.config <<EOF
+<?xml version="1.0" encoding="utf-8"?>
+<configuration>
+  <packageSources>
+    <add key="nuget" value="https://api.nuget.org/v3/index.json" />
+  </packageSources>
+  <config>
+    <add key="globalPackagesFolder" value="$(realpath ./nuget_tmp.packages)" />
+  </config>
+</configuration>
+EOF
+
+dotnet restore osu.Desktop --configfile ./nuget_tmp.config
+
+echo "{ fetchNuGet }: [" >"$deps_file"
+while read pkg_spec; do
+  { read pkg_name; read pkg_version; } < <(
+    # Build version part should be ignored: `3.0.0-beta2.20059.3+77df2220` -> `3.0.0-beta2.20059.3`
+    sed -nE 's/.*<id>([^<]*).*/\1/p; s/.*<version>([^<+]*).*/\1/p' "$pkg_spec")
+  pkg_sha256="$(nix-hash --type sha256 --flat --base32 "$(dirname "$pkg_spec")"/*.nupkg)"
+  cat >>"$deps_file" <<EOF
+  (fetchNuGet {
+    name = "$pkg_name";
+    version = "$pkg_version";
+    sha256 = "$pkg_sha256";
+  })
+EOF
+done < <(find ./nuget_tmp.packages -name '*.nuspec' | sort)
+echo "]" >>"$deps_file"
+
+popd
+rm -r "$src"
diff --git a/pkgs/games/pentobi/default.nix b/pkgs/games/pentobi/default.nix
index 909f09a0b39..2b5a86ad52c 100644
--- a/pkgs/games/pentobi/default.nix
+++ b/pkgs/games/pentobi/default.nix
@@ -5,12 +5,12 @@
 
 with stdenv.lib;
 stdenv.mkDerivation rec {
-  version = "18.0";
+  version = "18.1";
   pname = "pentobi";
 
   src = fetchurl {
     url = "mirror://sourceforge/pentobi/${pname}-${version}.tar.xz";
-    sha256 = "0dlvshywxijl0hrkl66szamcr77arh118f44ngr1ail8mg1fx1fy";
+    sha256 = "1vfw61lk9z7dngncmx3fggy5ld7ksdk48dpwnsq2vl5fh3f71qbq";
   };
 
   nativeBuildInputs = [ cmake docbook_xsl wrapQtAppsHook ];
diff --git a/pkgs/games/runelite/default.nix b/pkgs/games/runelite/default.nix
index 9b6ca4f7c05..df8a5c3e8dc 100644
--- a/pkgs/games/runelite/default.nix
+++ b/pkgs/games/runelite/default.nix
@@ -23,7 +23,7 @@ stdenv.mkDerivation rec {
     terminal = "false";
     desktopName = "RuneLite";
     genericName = "Oldschool Runescape";
-    categories = "Application;Game";
+    categories = "Game";
     startupNotify = null;
   };
 
diff --git a/pkgs/games/sfrotz/default.nix b/pkgs/games/sfrotz/default.nix
new file mode 100644
index 00000000000..6e4839703a1
--- /dev/null
+++ b/pkgs/games/sfrotz/default.nix
@@ -0,0 +1,69 @@
+{ fetchFromGitLab
+, freetype
+, libao
+, libjpeg
+, libmodplug
+, libpng
+, libsamplerate
+, libsndfile
+, libvorbis
+, pkg-config
+, SDL2
+, SDL2_mixer
+, stdenv
+, zlib }:
+
+stdenv.mkDerivation rec {
+  pname = "sfrotz";
+  version = "2.52";
+
+  src = fetchFromGitLab  {
+    domain = "gitlab.com";
+    owner = "DavidGriffith";
+    repo = "frotz";
+    rev = version;
+    sha256 = "11ca1dz31b7s5vxjqncwjwmbbcr2m5v2rxjn49g4gnvwd6mqw48y";
+  };
+
+  buildInputs = [
+    freetype
+    libao
+    libjpeg
+    libmodplug
+    libpng
+    libsamplerate
+    libsndfile
+    libvorbis
+    SDL2
+    SDL2_mixer
+    zlib
+  ];
+  nativeBuildInputs = [ pkg-config ];
+  makeFlags = [ "PREFIX=${placeholder "out"}" ];
+  buildPhase = "make sdl";
+  installTargets = [ "install_sfrotz" ];
+
+  meta = with stdenv.lib; {
+    description =
+      "Interpreter for Infocom and other Z-Machine games (SDL interface)";
+    longDescription = ''
+      Frotz is a Z-Machine interpreter. The Z-machine is a virtual machine
+      designed by Infocom to run all of their text adventures. It went through
+      multiple revisions during the lifetime of the company, and two further
+      revisions (V7 and V8) were created by Graham Nelson after the company's
+      demise. The specification is now quite well documented; this version of
+      Frotz supports version 1.0.
+
+      This version of Frotz fully supports all these versions of the Z-Machine
+      including the graphical version 6. Graphics and sound are created through
+      the use of the SDL libraries. AIFF sound effects and music in MOD and OGG
+      formats are supported when packaged in Blorb container files or optionally
+      from individual files.
+    '';
+    homepage = "https://davidgriffith.gitlab.io/frotz/";
+    changelog = "https://gitlab.com/DavidGriffith/frotz/-/raw/${version}/NEWS";
+    license = licenses.gpl2;
+    maintainers = with maintainers; [ ddelabru ];
+    platforms = platforms.linux;
+  };
+}
diff --git a/pkgs/games/shattered-pixel-dungeon/default.nix b/pkgs/games/shattered-pixel-dungeon/default.nix
index f96f61764b5..76f6ecfb81a 100644
--- a/pkgs/games/shattered-pixel-dungeon/default.nix
+++ b/pkgs/games/shattered-pixel-dungeon/default.nix
@@ -1,29 +1,30 @@
 { stdenv
-, fetchurl
 , makeWrapper
 , fetchFromGitHub
+, nixosTests
 , gradle_5
 , perl
 , jre
-, xorg
-, openal
+, libpulseaudio
 }:
 
 let
   pname = "shattered-pixel-dungeon";
-  version = "0.7.5f";
+  version = "0.8.2";
 
   src = fetchFromGitHub {
     owner = "00-Evan";
-    repo = "shattered-pixel-dungeon-gdx";
+    repo = "shattered-pixel-dungeon";
     rev = "v${version}";
-    sha256 = "05awbbc7np9li50shdbpv9dgdgry6lra8d5gibwn578m2g9srbxx";
+    sha256 = "1ra697237vnpx8nsy7dzk958vlyf6jpx1k5dpbr8ybg6vgc3kqx3";
   };
 
   postPatch = ''
     # disable gradle plugins with native code and their targets
     perl -i.bak1 -pe "s#(^\s*id '.+' version '.+'$)#// \1#" build.gradle
     perl -i.bak2 -pe "s#(.*)#// \1# if /^(buildscript|task portable|task nsis|task proguard|task tgz|task\(afterEclipseImport\)|launch4j|macAppBundle|buildRpm|buildDeb|shadowJar)/ ... /^}/" build.gradle
+    # Remove unbuildable android stuff
+    rm android/build.gradle
   '';
 
   # fake build to pre-download deps into fixed-output derivation
@@ -33,7 +34,7 @@ let
     nativeBuildInputs = [ gradle_5 perl ];
     buildPhase = ''
       export GRADLE_USER_HOME=$(mktemp -d)
-      gradle --no-daemon desktop:dist
+      gradle --no-daemon desktop:release
     '';
     # perl code mavenizes pathes (com.squareup.okio/okio/1.13.0/a9283170b7305c8d92d25aff02a6ab7e45d06cbe/okio-1.13.0.jar -> com/squareup/okio/okio/1.13.0/okio-1.13.0.jar)
     installPhase = ''
@@ -43,7 +44,7 @@ let
     '';
     outputHashAlgo = "sha256";
     outputHashMode = "recursive";
-    outputHash = "1k0v5scadw9ziq4dw2rckmh8x2xlmxslfsxmpw79zg78n3hvwhf1";
+    outputHash = "0ih10c6c85vhrqgilqmkzqjx3dc8cscvs9wkh90zgdj10qv0iba3";
   };
 
 in stdenv.mkDerivation rec {
@@ -54,21 +55,25 @@ in stdenv.mkDerivation rec {
   buildPhase = ''
     export GRADLE_USER_HOME=$(mktemp -d)
     # point to offline repo
-    sed -ie "s#mavenLocal()#mavenLocal(); maven { url '${deps}' }#g" build.gradle
-    gradle --offline --no-daemon desktop:dist
+    sed -ie "s#repositories {#repositories { maven { url '${deps}' };#g" build.gradle
+    gradle --offline --no-daemon desktop:release
   '';
 
   installPhase = ''
     install -Dm644 desktop/build/libs/desktop-${version}.jar $out/share/shattered-pixel-dungeon.jar
     mkdir $out/bin
     makeWrapper ${jre}/bin/java $out/bin/shattered-pixel-dungeon \
-      --prefix LD_LIBRARY_PATH : ${xorg.libXxf86vm}/lib:${openal}/lib \
+      --prefix LD_LIBRARY_PATH : ${libpulseaudio}/lib \
       --add-flags "-jar $out/share/shattered-pixel-dungeon.jar"
   '';
 
+  passthru.tests = {
+    shattered-pixel-dungeon-starts = nixosTests.shattered-pixel-dungeon;
+  };
+
   meta = with stdenv.lib; {
     homepage = "https://shatteredpixel.com/";
-    downloadPage = "https://github.com/00-Evan/shattered-pixel-dungeon-gdx/releases";
+    downloadPage = "https://github.com/00-Evan/shattered-pixel-dungeon/releases";
     description = "Traditional roguelike game with pixel-art graphics and simple interface";
     license = licenses.gpl3;
     maintainers = with maintainers; [ fgaz ];
diff --git a/pkgs/games/spring/springlobby.nix b/pkgs/games/spring/springlobby.nix
index e627575df94..9912675ee67 100644
--- a/pkgs/games/spring/springlobby.nix
+++ b/pkgs/games/spring/springlobby.nix
@@ -4,11 +4,11 @@
 
 stdenv.mkDerivation rec {
   pname = "springlobby";
-  version = "0.269";
+  version = "0.270";
 
   src = fetchurl {
     url = "https://springlobby.springrts.com/dl/stable/springlobby-${version}.tar.bz2";
-    sha256 = "1shgrfs4ssjj8m0c7805jisjzpc60796l0vja3yjfdksrz7yxvhg";
+    sha256 = "1r1g2hw9ipsmsmzbhsi7bxqra1za6x7j1kw12qzl5psqyq8rqbgs";
   };
 
   nativeBuildInputs = [ pkgconfig ];
diff --git a/pkgs/games/steam/default.nix b/pkgs/games/steam/default.nix
index 5aab54b8322..ff2c6e13288 100644
--- a/pkgs/games/steam/default.nix
+++ b/pkgs/games/steam/default.nix
@@ -1,4 +1,4 @@
-{ pkgs, newScope }:
+{ pkgs, newScope, buildFHSUserEnv }:
 
 let
   callPackage = newScope self;
@@ -12,12 +12,13 @@ let
     steam-runtime-wrapped = callPackage ./runtime-wrapped.nix { };
     steam = callPackage ./steam.nix { };
     steam-fonts = callPackage ./fonts.nix { };
-    steam-chrootenv = callPackage ./chrootenv.nix {
+    steam-fhsenv = callPackage ./fhsenv.nix {
       glxinfo-i686 = pkgs.pkgsi686Linux.glxinfo;
       steam-runtime-wrapped-i686 =
         if steamArch == "amd64"
         then pkgs.pkgsi686Linux.steamPackages.steam-runtime-wrapped
         else null;
+      inherit buildFHSUserEnv;
     };
     steamcmd = callPackage ./steamcmd.nix { };
   };
diff --git a/pkgs/games/steam/chrootenv.nix b/pkgs/games/steam/fhsenv.nix
index 56e1a09f36e..2c7cde78c43 100644
--- a/pkgs/games/steam/chrootenv.nix
+++ b/pkgs/games/steam/fhsenv.nix
@@ -42,6 +42,12 @@ let
   ldPath = map (x: "/steamrt/${steam-runtime-wrapped.arch}/" + x) steam-runtime-wrapped.libs
            ++ lib.optionals (steam-runtime-wrapped-i686 != null) (map (x: "/steamrt/${steam-runtime-wrapped-i686.arch}/" + x) steam-runtime-wrapped-i686.libs);
 
+  # Zachtronics and a few other studios expect STEAM_LD_LIBRARY_PATH to be present
+  exportLDPath = ''
+    export LD_LIBRARY_PATH=/lib32:/lib64:${lib.concatStringsSep ":" ldPath}\''${LD_LIBRARY_PATH:+:}$LD_LIBRARY_PATH
+    export STEAM_LD_LIBRARY_PATH="$STEAM_LD_LIBRARY_PATH''${STEAM_LD_LIBRARY_PATH:+:}$LD_LIBRARY_PATH"
+  '';
+
   setupSh = writeScript "setup.sh" ''
     #!${runtimeShell}
   '';
@@ -54,6 +60,7 @@ let
       exit 0
     fi
     export LD_LIBRARY_PATH="$runtime_paths''${LD_LIBRARY_PATH:+:}$LD_LIBRARY_PATH"
+    export STEAM_LD_LIBRARY_PATH="$STEAM_LD_LIBRARY_PATH''${STEAM_LD_LIBRARY_PATH:+:}$LD_LIBRARY_PATH"
     exec "$@"
   '';
 
@@ -251,6 +258,7 @@ in buildFHSUserEnv rec {
     EOF
       fi
     fi
+    ${lib.optionalString (!nativeOnly) exportLDPath}
     exec steam "$@"
   '';
 
@@ -272,7 +280,7 @@ in buildFHSUserEnv rec {
         exit 1
       fi
       shift
-      ${lib.optionalString (!nativeOnly) "export LD_LIBRARY_PATH=/lib32:/lib64:${lib.concatStringsSep ":" ldPath}\${LD_LIBRARY_PATH:+:}$LD_LIBRARY_PATH"}
+      ${lib.optionalString (!nativeOnly) exportLDPath}
       exec -- "$run" "$@"
     '';
   };
diff --git a/pkgs/games/steam/runtime.nix b/pkgs/games/steam/runtime.nix
index 44d80c0d794..4f373b9be30 100644
--- a/pkgs/games/steam/runtime.nix
+++ b/pkgs/games/steam/runtime.nix
@@ -1,25 +1,20 @@
-{ stdenv, steamArch, fetchurl, }:
+{ stdenv, fetchurl }:
 
 stdenv.mkDerivation rec {
 
   name = "steam-runtime";
   # from https://repo.steampowered.com/steamrt-images-scout/snapshots/
-  version = "0.20200417.0";
+  version = "0.20200720.0";
 
-  src =
-    if steamArch == "amd64" then fetchurl {
-      url = "https://repo.steampowered.com/steamrt-images-scout/snapshots/${version}/com.valvesoftware.SteamRuntime.Platform-amd64,i386-scout-runtime.tar.gz";
-      sha256 = "0kps8i5v23sycqm69xz389n8k831jd7ncsmlrkky7nib2q91rbvj";
-      name = "scout-runtime-${version}.tar.gz";
-    } else fetchurl {
-      url = "https://repo.steampowered.com/steamrt-images-scout/snapshots/${version}/com.valvesoftware.SteamRuntime.Platform-i386-scout-runtime.tar.gz";
-      sha256 = "03fhac1r25xf7ia2pd35wjw360v5pa9h4870yrhhygp9h7v4klzf";
-      name = "scout-runtime-i386-${version}.tar.gz";
-    };
+  src = fetchurl {
+    url = "https://repo.steampowered.com/steamrt-images-scout/snapshots/${version}/steam-runtime.tar.xz";
+    sha256 = "03qdlr1xk84jb4c60ilis00vjhj70bxc0bbgk5g5b1883l2frljd";
+    name = "scout-runtime-${version}.tar.gz";
+  };
 
   buildCommand = ''
     mkdir -p $out
-    tar -C $out -x --strip=1 -f $src files/
+    tar -C $out --strip=1 -x -f $src
   '';
 
   meta = with stdenv.lib; {
diff --git a/pkgs/games/super-tux-kart/default.nix b/pkgs/games/super-tux-kart/default.nix
index 70c5657508b..b3a7966071a 100644
--- a/pkgs/games/super-tux-kart/default.nix
+++ b/pkgs/games/super-tux-kart/default.nix
@@ -1,7 +1,8 @@
-{ stdenv, fetchFromGitHub, fetchsvn, cmake, pkgconfig, makeWrapper
-, openal, freealut, libGLU, libGL, libvorbis, libogg, gettext, curl, freetype
-, fribidi, libtool, bluez, libjpeg, libpng, zlib, libX11, libXrandr, enet, harfbuzz }:
-
+{ lib, stdenv, fetchFromGitHub, fetchsvn, cmake, pkgconfig, makeWrapper
+, openal, freealut, libGLU, libGL, libvorbis, libogg, gettext, curl, freetype, glew
+, fribidi, libtool, bluez, libjpeg, libpng, zlib, libX11, libXrandr, harfbuzz
+, mcpp, wiiuse, angelscript
+}:
 let
   dir = "stk-code";
   assets = fetchsvn {
@@ -11,34 +12,62 @@ let
     name   = "stk-assets";
   };
 
+  # List of bundled libraries in stk-code/lib to keep
+  # Those are the libraries that cannot be replaced
+  # with system packages.
+  bundledLibraries = [
+    # Bullet 2.87 is incompatible (bullet 2.79 needed whereas 2.87 is packaged)
+    # The api changed in a lot of classes, too much work to adapt
+    "bullet"
+    # Upstream Libenet doesn't yet support IPv6,
+    # So we will use the bundled libenet which
+    # has been fixed to support it.
+    "enet"
+    # Internal library of STK, nothing to do about it
+    "graphics_utils"
+    # This irrlicht is bundled with cmake
+    # whereas upstream irrlicht still uses
+    # archaic Makefiles, too complicated to switch to.
+    "irrlicht"
+    # Not packaged to this date
+    "libraqm"
+    # Not packaged to this date
+    "libsquish"
+  ];
 in stdenv.mkDerivation rec {
+
   pname = "supertuxkart";
   version = "1.1";
 
-  srcs = [
-    (fetchFromGitHub {
-      owner  = "supertuxkart";
-      repo   = "stk-code";
-      rev    = version;
-      sha256 = "01vxxl94583ixswzmi4caz8dk64r56pn3zxh7v63zml60yfvxbvp";
-      name   = dir;
-    })
-  ];
+  src = fetchFromGitHub {
+    owner  = "supertuxkart";
+    repo   = "stk-code";
+    rev    = version;
+    sha256 = "01vxxl94583ixswzmi4caz8dk64r56pn3zxh7v63zml60yfvxbvp";
+    name   = dir;
+  };
+
+  # Deletes all bundled libs in stk-code/lib except those
+  # That couldn't be replaced with system packages
+  postPatch = ''
+    find lib -maxdepth 1 -type d | egrep -v "^lib$|${(lib.concatStringsSep "|" bundledLibraries)}" | xargs -n1 -L1 -r -I{} rm -rf {}
+  '';
 
   nativeBuildInputs = [ cmake gettext libtool pkgconfig makeWrapper ];
 
   buildInputs = [
     libX11 libXrandr
-    openal freealut libGLU libGL libvorbis libogg zlib freetype
-    curl fribidi bluez libjpeg libpng enet harfbuzz
+    openal freealut libGLU libGL libvorbis libogg zlib freetype glew
+    curl fribidi bluez libjpeg libpng harfbuzz
+    mcpp wiiuse angelscript
   ];
 
-  enableParallelBuilding = true;
-
   cmakeFlags = [
     "-DBUILD_RECORDER=OFF"         # libopenglrecorder is not in nixpkgs
     "-DUSE_SYSTEM_ANGELSCRIPT=OFF" # doesn't work with 2.31.2 or 2.32.0
     "-DCHECK_ASSETS=OFF"
+    "-DUSE_SYSTEM_WIIUSE=ON"
+    "-DUSE_SYSTEM_ANGELSCRIPT=ON"
   ];
 
   # Obtain the assets directly from the fetched store path, to avoid duplicating assets across multiple engine builds
@@ -46,9 +75,9 @@ in stdenv.mkDerivation rec {
     wrapProgram $out/bin/supertuxkart --set-default SUPERTUXKART_ASSETS_DIR "${assets}"
   '';
 
-  sourceRoot = dir;
+  enableParallelBuilding = true;
 
-  meta = with stdenv.lib; {
+  meta = with lib; {
     description = "A Free 3D kart racing game";
     longDescription = ''
       SuperTuxKart is a Free 3D kart racing game, with many tracks,
diff --git a/pkgs/games/tdm/default.nix b/pkgs/games/tdm/default.nix
index 32f91f59868..d0133df59dd 100644
--- a/pkgs/games/tdm/default.nix
+++ b/pkgs/games/tdm/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, binutils-unwrapped, scons, gnum4, p7zip, glibc_multi, mesa
+{ stdenv, fetchurl, binutils-unwrapped, sconsPackages, gnum4, p7zip, glibc_multi, mesa
 , xorg, libGLU, libGL, openal
 , lib, makeWrapper, makeDesktopItem }:
 
@@ -11,7 +11,7 @@ let
     name = pname;
     exec = "@out@/bin/${pname}";
     icon = pname;
-    terminal = "False";
+    terminal = "false";
     comment = "The Dark Mod - stealth FPS inspired by the Thief series";
     type = "Application";
     categories = "Game;";
@@ -24,7 +24,7 @@ in stdenv.mkDerivation {
     sha256 = "17wdpip8zvm2njz0xrf7xcxl73hnsc6i83zj18kn8rnjkpy50dd6";
   };
   nativeBuildInputs = [
-    p7zip scons.py2 gnum4 makeWrapper
+    p7zip sconsPackages.scons_3_1_2 gnum4 makeWrapper
   ];
   buildInputs = [
     glibc_multi mesa.dev xorg.libX11.dev openal
diff --git a/pkgs/games/the-powder-toy/default.nix b/pkgs/games/the-powder-toy/default.nix
index 72b4bf20383..af392eca8d8 100644
--- a/pkgs/games/the-powder-toy/default.nix
+++ b/pkgs/games/the-powder-toy/default.nix
@@ -1,21 +1,24 @@
-{ stdenv, fetchFromGitHub, scons, pkgconfig, SDL2, lua, fftwFloat, zlib, bzip2 }:
+
+{ stdenv, fetchFromGitHub, scons, pkgconfig, SDL2, lua, fftwFloat,
+  zlib, bzip2, curl, darwin }:
 
 stdenv.mkDerivation rec {
   pname = "the-powder-toy";
-  version = "94.1";
+  version = "95.0";
 
   src = fetchFromGitHub {
-    owner = "ThePowderToy";
+    owner = "The-Powder-Toy";
     repo = "The-Powder-Toy";
     rev = "v${version}";
-    sha256 = "0w3i4zjkw52qbv3s9cgcwxrdbb1npy0ka7wygyb76xcb17bj0l0b";
+    sha256 = "18rp2g1mj0gklra06wm9dm57h73hmm301npndh0y8ap192i5s8sa";
   };
 
   nativeBuildInputs = [ scons pkgconfig ];
 
-  buildInputs = [ SDL2 lua fftwFloat zlib bzip2 ];
+  propagatedBuildInputs = stdenv.lib.optionals stdenv.isDarwin
+    [ darwin.apple_sdk.frameworks.Cocoa ];
 
-  sconsFlags = "--tool=";
+  buildInputs = [ SDL2 lua fftwFloat zlib bzip2 curl ];
 
   installPhase = ''
     install -Dm 755 build/powder* "$out/bin/powder"
@@ -28,6 +31,6 @@ stdenv.mkDerivation rec {
     homepage = "http://powdertoy.co.uk/";
     platforms = [ "i686-linux" "x86_64-linux" "x86_64-darwin" ];
     license = licenses.gpl3;
-    maintainers = with maintainers; [ abbradar ];
+    maintainers = with maintainers; [ abbradar siraben ];
   };
 }
diff --git a/pkgs/games/ut2004/wrapper.nix b/pkgs/games/ut2004/wrapper.nix
index 31d0763be4d..0f70a07ca8f 100644
--- a/pkgs/games/ut2004/wrapper.nix
+++ b/pkgs/games/ut2004/wrapper.nix
@@ -27,7 +27,7 @@ let
     desktopName = "Unreal Tournament 2004";
     comment = "A first-person shooter video game developed by Epic Games and Digital Extreme";
     genericName = "First-person shooter";
-    categories = "Application;Game;";
+    categories = "Game;";
     exec = "ut2004";
   };
 
diff --git a/pkgs/games/vdrift/default.nix b/pkgs/games/vdrift/default.nix
index 99475af49e1..ea8b3941f8b 100644
--- a/pkgs/games/vdrift/default.nix
+++ b/pkgs/games/vdrift/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchFromGitHub, fetchsvn, pkgconfig, scons, libGLU, libGL, SDL2, SDL2_image
+{ stdenv, fetchFromGitHub, fetchsvn, pkgconfig, sconsPackages, libGLU, libGL, SDL2, SDL2_image
 , libvorbis, bullet, curl, gettext, writeTextFile
 
 , data ? fetchsvn {
@@ -20,7 +20,7 @@ let
       sha256 = "001wq3c4n9wzxqfpq40b1jcl16sxbqv2zbkpy9rq2wf9h417q6hg";
     };
 
-    nativeBuildInputs = [ pkgconfig scons.py2 ];
+    nativeBuildInputs = [ pkgconfig sconsPackages.scons_3_1_2 ];
     buildInputs = [ libGLU libGL SDL2 SDL2_image libvorbis bullet curl gettext ];
 
     patches = [ ./0001-Ignore-missing-data-for-installation.patch ];
diff --git a/pkgs/games/wesnoth/default.nix b/pkgs/games/wesnoth/default.nix
index 20ec0a978f5..ce375392041 100644
--- a/pkgs/games/wesnoth/default.nix
+++ b/pkgs/games/wesnoth/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, cmake, pkgconfig, SDL2, SDL2_image, SDL2_mixer, SDL2_net, SDL2_ttf
+{ stdenv, fetchFromGitHub, cmake, pkgconfig, SDL2, SDL2_image, SDL2_mixer, SDL2_net, SDL2_ttf
 , pango, gettext, boost, libvorbis, fribidi, dbus, libpng, pcre, openssl, icu
 , Cocoa, Foundation
 , enableTools ? false
@@ -6,11 +6,13 @@
 
 stdenv.mkDerivation rec {
   pname = "wesnoth";
-  version = "1.14.11";
+  version = "1.14.13";
 
-  src = fetchurl {
-    url = "mirror://sourceforge/sourceforge/${pname}/${pname}-${version}.tar.bz2";
-    sha256 = "1i8mz6gw3qar09bscczhki0g4scj8pl58v85rp0g55r4bcq41l5v";
+  src = fetchFromGitHub {
+    rev = version;
+    owner = "wesnoth";
+    repo = "wesnoth";
+    sha256 = "1ka07h4sgmbc24qbaz0pbryx0yk339l4jzg32hy01qdvl2n40w3h";
   };
 
   nativeBuildInputs = [ cmake pkgconfig ];
@@ -33,7 +35,7 @@ stdenv.mkDerivation rec {
       adventures.
     '';
 
-    homepage = "http://www.wesnoth.org/";
+    homepage = "https://www.wesnoth.org/";
     license = licenses.gpl2;
     maintainers = with maintainers; [ abbradar ];
     platforms = platforms.unix;