diff --git a/pkgs/games/openra/default.nix b/pkgs/games/openra/default.nix
index ee8e865a6f11..fb01346d84e8 100644
--- a/pkgs/games/openra/default.nix
+++ b/pkgs/games/openra/default.nix
@@ -1,12 +1,11 @@
-{ stdenv, fetchurl, mono, makeWrapper, lua
+{ stdenv, fetchFromGitHub, mono, makeWrapper, lua
 , SDL2, freetype, openal, systemd, pkgconfig,
-  dotnetPackages, gnome3, curl, unzip
+  dotnetPackages, gnome3, curl, unzip, which
 }:
 
-let
-  version = "20161019";
-in stdenv.mkDerivation rec {
+stdenv.mkDerivation rec {
   name = "openra-${version}";
+  version = "20171014";
 
   meta = with stdenv.lib; {
     description = "Real Time Strategy game engine recreating the C&C titles";
@@ -16,24 +15,33 @@ in stdenv.mkDerivation rec {
     platforms   = platforms.linux;
   };
 
-  src = fetchurl {
-    name = "${name}.tar.gz";
-    url = "https://github.com/OpenRA/OpenRA/archive/release-${version}.tar.gz";
-    sha256 = "1psmq3kb2whkavh5pm0xc4m5b4bihvrl8pfrk851iqg1cs22bg0w";
+  src = fetchFromGitHub {
+    owner = "OpenRA";
+    repo = "OpenRA";
+    rev = "release-${version}";
+    sha256 = "0nlwpmiwhjs3qc2lxwnrh4p874v5y6mf4avi6bqgr1wvzc43n8wr";
+
+    extraPostFetch = ''
+      sed -i 's,curl,curl --insecure,g' $out/thirdparty/{fetch-thirdparty-deps,noget}.sh
+      $out/thirdparty/fetch-thirdparty-deps.sh
+    '';
   };
 
   dontStrip = true;
 
-  buildInputs = with dotnetPackages;
-     [ NUnit3 NewtonsoftJson MonoNat FuzzyLogicLibrary SmartIrc4net SharpZipLib MaxMindGeoIP2 MaxMindDb SharpFont StyleCopMSBuild StyleCopPlusMSBuild RestSharp NUnitConsole OpenNAT ]
+  buildInputs = (with dotnetPackages;
+     [ NUnit3 NewtonsoftJson MonoNat FuzzyLogicLibrary SmartIrc4net SharpZipLib MaxMindGeoIP2 MaxMindDb SharpFont StyleCopMSBuild StyleCopPlusMSBuild RestSharp NUnitConsole OpenNAT ])
      ++ [ curl unzip lua gnome3.zenity ];
   nativeBuildInputs = [ curl unzip mono makeWrapper lua pkgconfig ];
 
-  patchPhase = ''
+  postPatch = ''
     mkdir Support
-    sed -i 's/^VERSION.*/VERSION = release-${version}/g' Makefile
+    sed -i \
+      -e 's/^VERSION.*/VERSION = release-${version}/g' \
+      -e '/GeoLite2-Country.mmdb.gz/d' \
+      -e '/fetch-geoip-db.sh/d' \
+      Makefile
     substituteInPlace thirdparty/configure-native-deps.sh --replace "locations=\"" "locations=\"${lua}/lib "
-    substituteInPlace Makefile --replace "@./thirdparty/fetch-geoip-db.sh" ""
   '';
 
   preConfigure = ''
@@ -41,63 +49,6 @@ in stdenv.mkDerivation rec {
     make version
   '';
 
-  preBuild = let dotnetPackagesDlls = with dotnetPackages; [
-    "${OpenNAT}/lib/dotnet/Open.NAT/net45/Open.Nat.dll"
-    "${MonoNat}/lib/dotnet/Mono.Nat/net40/Mono.Nat.dll"
-    "${FuzzyLogicLibrary}/lib/dotnet/FuzzyLogicLibrary/Release/FuzzyLogicLibrary.dll"
-    "${SmartIrc4net}/lib/dotnet/SmartIrc4net/net40/SmarIrc4net*"
-    "${SharpZipLib}/lib/dotnet/SharpZipLib/20/ICSharpCode.SharpZipLib.dll"
-    "${MaxMindGeoIP2}/lib/dotnet/MaxMind.GeoIP2/net40/MaxMind.GeoIP2*"
-    "${MaxMindDb}/lib/dotnet/MaxMind.Db/net40/MaxMind.Db.*"
-    "${SharpFont}/lib/dotnet/SharpFont/net20/SharpFont.dll"
-    "${SharpFont}/lib/dotnet/SharpFont/SharpFont.dll.config"
-    "${StyleCopMSBuild}/lib/dotnet/StyleCop.MSBuild/StyleCop*.dll"
-    "${StyleCopPlusMSBuild}/lib/dotnet/StyleCopPlus.MSBuild/StyleCopPlus.dll"
-    "${RestSharp}/lib/dotnet/RestSharp/net4-client/RestSharp.dll"
-    "${NUnit}/lib/dotnet/NUnit/nunit.framework.*"
-    "${NUnitConsole}/lib/dotnet/NUnit.Console/*"
-    "${NewtonsoftJson}/lib/dotnet/Newtonsoft.Json/Newtonsoft.Json.dll"
-    ];
-    movePackages = [
-      ( let filename = "Eluant.dll"; in { origin = fetchurl {
-          url = "https://github.com/OpenRA/Eluant/releases/download/20160124/${filename}";
-          sha256 = "1c20whz7dzfhg3szd62rvb79745x5iwrd5pp62j3bbj1q9wpddmb";
-        }; target = filename; })
-
-      ( let filename = "SDL2-CS.dll"; in { origin = fetchurl {
-          url = "https://github.com/OpenRA/SDL2-CS/releases/download/20151227/${filename}";
-          sha256 = "0gqw2wg37cqhhlc2a9lfc4ndkyfi4m8bkv7ckxbawgydjlknq83n";
-        }; target = filename; })
-
-      ( let filename = "SDL2-CS.dll.config"; in { origin = fetchurl {
-          url = "https://github.com/OpenRA/SDL2-CS/releases/download/20151227/${filename}";
-          sha256 = "15709iscdg44wd33szw5y0fdxwvqfjw8v3xjq6a0mm46gr7mkw7g";
-        }; target = filename; })
-
-      ( let filename = "OpenAL-CS.dll"; in { origin = fetchurl {
-          url = "https://github.com/OpenRA/OpenAL-CS/releases/download/20151227/${filename}";
-          sha256 = "0lvyjkn7fqys97wym8rwlcp6ay2z059iabfvlcxhlrscjpyr2cyk";
-        }; target = filename; })
-
-      ( let filename = "OpenAL-CS.dll.config"; in { origin = fetchurl {
-          url = "https://github.com/OpenRA/OpenAL-CS/releases/download/20151227/${filename}";
-          sha256 = "0wcmk3dw26s93598ck5jism5609v0y233i0f1b76yilyfimg9sjq";
-        }; target = filename; })
-
-      ( let filename = "GeoLite2-Country.mmdb.gz"; in { origin = fetchurl {
-          url = "http://geolite.maxmind.com/download/geoip/database/${filename}";
-          sha256 = "0a82v0sj4zf5vigrn1pd6mnbqz6zl3rgk9nidqqzy836as2kxk9v";
-        }; target = filename; })
-    ];
-  in ''
-    mkdir thirdparty/download/
-
-    ${stdenv.lib.concatMapStringsSep "\n" (from: "cp -r ${from} thirdparty/download") dotnetPackagesDlls}
-    ${stdenv.lib.concatMapStringsSep "\n" ({origin, target}: "cp ${origin} thirdparty/download/${target}") movePackages}
-
-    make dependencies
-  '';
-
   buildFlags = [ "DEBUG=false" "default" "man-page" ];
 
   doCheck = true;
@@ -109,14 +60,13 @@ in stdenv.mkDerivation rec {
 
   postInstall = with stdenv.lib; let
     runtime = makeLibraryPath [ SDL2 freetype openal systemd lua ];
+    binaries= makeBinPath [ which mono gnome3.zenity ];
   in ''
     wrapProgram $out/lib/openra/launch-game.sh \
-      --prefix PATH : "${mono}/bin" \
-      --set PWD $out/lib/openra/ \
+      --prefix PATH : "${binaries}" \
       --prefix LD_LIBRARY_PATH : "${runtime}"
 
     mkdir -p $out/bin
-    echo -e "#!${stdenv.shell}\ncd $out/lib/openra && $out/lib/openra/launch-game.sh" > $out/bin/openra
-    chmod +x $out/bin/openra
+    makeWrapper $out/lib/openra/launch-game.sh $out/bin/openra --run "cd $out/lib/openra"
   '';
 }