diff --git a/pkgs/by-name/ga/gamemac/package.nix b/pkgs/by-name/ga/gamemac/package.nix
new file mode 100644
index 000000000000..4e0bd43b621a
--- /dev/null
+++ b/pkgs/by-name/ga/gamemac/package.nix
@@ -0,0 +1,50 @@
+{
+  lib,
+  stdenvNoCC,
+  fetchurl,
+  undmg,
+  makeWrapper,
+}:
+
+stdenvNoCC.mkDerivation (finalAttrs: {
+  pname = "gamemac";
+  version = "0.8.328";
+
+  src = fetchurl {
+    name = "GameHub_en_${finalAttrs.version}.dmg";
+    url = "https://gamehub-cdn.masnet.cn/uploads/upgrade/20260618/b616a96780c249a789d95f7b897333cb.dmg";
+    hash = "sha256-uo/kr9PAFREfbkXX9hpJJNT6OZDv3jnOuZgc2fwtSyM=";
+  };
+
+  strictDeps = true;
+  __structuredAttrs = true;
+
+  nativeBuildInputs = [
+    undmg
+    makeWrapper
+  ];
+
+  sourceRoot = ".";
+
+  installPhase = ''
+    runHook preInstall
+
+    mkdir -p "$out/Applications" "$out/bin"
+    mv GameHub.app "$out/Applications/"
+    makeWrapper "$out/Applications/GameHub.app/Contents/MacOS/GameHub" "$out/bin/GameHub"
+
+    runHook postInstall
+  '';
+
+  passthru.updateScript = ./update.sh;
+
+  meta = {
+    description = "Play mobile games natively on macOS";
+    homepage = "https://www.gamemac.com/en/";
+    license = lib.licenses.unfree;
+    maintainers = with lib.maintainers; [ damidoug ];
+    mainProgram = "GameHub";
+    platforms = lib.platforms.darwin;
+    sourceProvenance = with lib.sourceTypes; [ binaryNativeCode ];
+  };
+})
diff --git a/pkgs/by-name/ga/gamemac/update.sh b/pkgs/by-name/ga/gamemac/update.sh
new file mode 100755
index 000000000000..e12550fcc7d6
--- /dev/null
+++ b/pkgs/by-name/ga/gamemac/update.sh
@@ -0,0 +1,32 @@
+#!/usr/bin/env nix-shell
+#!nix-shell -i bash -p bash curl gnused nix
+
+set -euo pipefail
+cd "$(dirname "${BASH_SOURCE[0]}")"
+
+ROLLING_URL="https://api-international-gamehub.xiaoji.com/game/download/mac/en"
+UA="Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36"
+
+# Resolve rolling URL to stable CDN URL (strip query string)
+DIRECT_URL=$(curl -fsSL -A "$UA" -w "%{url_effective}" -o /dev/null "$ROLLING_URL")
+CDN_URL="${DIRECT_URL%%\?*}"
+
+# Extract version from CDN filename (e.g. .../GameHub_en_0.8.328.dmg)
+VERSION=$(basename "$CDN_URL" | grep -oE '[0-9]+\.[0-9]+\.[0-9]+')
+
+CURRENT=$(grep 'version = ' package.nix | head -1 | grep -oE '"[0-9.]+"' | tr -d '"')
+if [ "$VERSION" = "$CURRENT" ]; then
+  echo "Already at $VERSION"
+  exit 0
+fi
+
+HASH=$(nix-prefetch-url --name "GameHub_en_${VERSION}.dmg" --type sha256 "$CDN_URL")
+SRI=$(nix-hash --to-sri --type sha256 "$HASH")
+
+sed -i \
+  -e "s|version = \"[^\"]*\"|version = \"$VERSION\"|" \
+  -e "s|https://gamehub-cdn\.masnet\.cn/uploads/upgrade/[^\"]*|$CDN_URL|" \
+  -e "s|hash = \"sha256-[^\"]*\"|hash = \"$SRI\"|" \
+  package.nix
+
+echo "Updated $CURRENT -> $VERSION"