diff --git a/packages/proton-ge-custom/default.nix b/packages/proton-ge-custom/default.nix
new file mode 100644
index 0000000..0489e44
--- /dev/null
+++ b/packages/proton-ge-custom/default.nix
@@ -0,0 +1,35 @@
+{
+  stdenv,
+  lib,
+  fetchurl,
+  nix-update-script,
+}:
+stdenv.mkDerivation rec {
+  pname = "proton-ge-custom";
+  version = "GE-Proton9-21";
+
+  src = fetchurl {
+    url = "https://github.com/GloriousEggroll/proton-ge-custom/releases/download/${version}/${version}.tar.gz";
+    hash = "sha256-91UwM1/vtteZQsIerdIclPUiGArlidtVs8o/IWbpSwQ=";
+  };
+
+  buildCommand = ''
+    runHook preBuild
+
+    mkdir -p $out/bin
+    tar -C $out/bin --strip=1 -x -f $src
+
+    runHook postBuild
+  '';
+
+  passthru.updateScript = nix-update-script {};
+
+  meta = with lib; {
+    description = "Compatibility tool for Steam Play based on Wine and additional components";
+    homepage = "https://github.com/GloriousEggroll/proton-ge-custom";
+    license = licenses.bsd3;
+    platforms = ["x86_64-linux"];
+    maintainers = with maintainers; [ataraxiasjel];
+    preferLocalBuild = true;
+  };
+}