GamePorter

Personal native macOS app for installing and running Windows games via Apple's Game Porting Toolkit (D3DMetal). My own CrossOver/Whisky — no subscription.

Personal use only. D3DMetal is Apple-proprietary (license in the toolkit download); the Wine build is the Gcenx GPTK evaluation environment.

How it works

• SwiftUI app (Sources/GamePorter), no external dependencies.
• Runtime lives in ~/Library/Application Support/GamePorter/:
  • Toolkit/ — Gcenx Game Porting Toolkit build (x86_64 Wine + Apple D3DMetal.framework), auto-downloaded by the app on first run if missing.
  • Bottles/<uuid>/ — one Wine prefix per bottle + gameporter.json metadata.
  • Logs/ — per-launch wine output.
• Wine binaries are x86_64; Rosetta 2 runs them transparently on Apple Silicon. D3DMetal translates DirectX 11/12 → Metal.

Features

• Bottles: create (win10/win11/win7/winxp64), delete, open C: in Finder, kill all.
• Run any .exe, install apps (.exe/.msi), one-click Steam install.
• Program auto-discovery in Program Files + pinning favorites.
• Per-bottle toggles: ESYNC, Metal HUD (FPS overlay), Retina mode, AVX passthrough (ROSETTA_ADVERTISE_AVX=1 — helps games that require AVX).
• Tools menu: winecfg, taskmgr, regedit, command prompt.
• Upgrade path: import Apple's official GPTK .dmg (developer.apple.com) to overlay a newer D3DMetal onto the toolkit (Setup screen → bottom link).

Build

./build.sh   # swift build + bundle + ad-hoc codesign + install to /Applications

Tips

• One bottle per game/launcher keeps things debuggable.
• Steam: toggle "Advertise AVX" on (default); if Steam webview is black, try adding -noverifyfiles -nobootstrapupdate -skipinitialbootstrap -norepairfiles launch args to a pinned Steam entry.
• DX9/DX10 games use Wine's builtin translation (slower); D3DMetal shines on DX11/DX12 titles.
• Check Logs/ when a game won't start.