diff --git a/pkgs/games/openttd/default.nix b/pkgs/games/openttd/default.nix
index a4f7c1c06bc..87e8084399c 100644
--- a/pkgs/games/openttd/default.nix
+++ b/pkgs/games/openttd/default.nix
@@ -6,18 +6,18 @@
 
 let
   opengfx = fetchzip {
-    url = "https://cdn.openttd.org/opengfx-releases/0.6.0/opengfx-0.6.0-all.zip";
-    sha256 = "1zg871j6kv7r0aqwca68d9kdf3smclgzan8hj76vj4fyfkykh173";
+    url = "https://cdn.openttd.org/opengfx-releases/0.6.1/opengfx-0.6.1-all.zip";
+    sha256 = "sha256-DeeIlLcmPeMZ0ju9DwXUInnQp2rWu60besDVto4+lDQ=";
   };
 
   opensfx = fetchzip {
-    url = "https://cdn.openttd.org/opensfx-releases/0.2.3/opensfx-0.2.3-all.zip";
-    sha256 = "1bb167kszdd6dqbcdjrxxwab6b7y7jilhzi3qijdhprpm5gf1lp3";
+    url = "https://cdn.openttd.org/opensfx-releases/1.0.1/opensfx-1.0.1-all.zip";
+    sha256 = "sha256-U1PIKbMZHRJ0Z9Cp2RqqCMhD1xRyudoNHAYIZyotxVk=";
   };
 
   openmsx = fetchzip {
-    url = "https://cdn.openttd.org/openmsx-releases/0.3.1/openmsx-0.3.1-all.zip";
-    sha256 = "0qnmfzz0v8vxrrvxnm7szphrlrlvhkwn3y92b4iy0b4b6yam0yd4";
+    url = "https://cdn.openttd.org/openmsx-releases/0.4.0/openmsx-0.4.0-all.zip";
+    sha256 = "sha256-Ok6W+iqi4SP7cD4HUQERrAysvVibnN7Q4/tkugffDgQ=";
   };
 
   playmidi = writeScriptBin "playmidi" ''
@@ -48,19 +48,19 @@ stdenv.mkDerivation rec {
 
   postInstall = ''
     ${lib.optionalString withOpenGFX ''
-      cp ${opengfx}/* $out/share/games/openttd/baseset
+      cp ${opengfx}/*.tar $out/share/games/openttd/baseset
     ''}
 
     mkdir -p $out/share/games/openttd/data
 
     ${lib.optionalString withOpenSFX ''
-      cp ${opensfx}/*.{obs,cat} $out/share/games/openttd/data
+      cp ${opensfx}/*.tar $out/share/games/openttd/data
     ''}
 
     mkdir $out/share/games/openttd/baseset/openmsx
 
     ${lib.optionalString withOpenMSX ''
-      cp ${openmsx}/*.{obm,mid} $out/share/games/openttd/baseset/openmsx
+      cp ${openmsx}/*.tar $out/share/games/openttd/baseset/openmsx
     ''}
 
     ${lib.optionalString withFluidSynth ''