Install macOS

Installing on macOS

Updated for v1.1.126. The arm64 DMG is built and tested by GitHub Actions.

Download

Download OpenCaptive-macos-arm64.dmg from GitHub Releases.

Install

1. Open the DMG file
2. Drag OpenCaptive.app to your Applications folder
3. On first launch, macOS may block the app because it is not notarized:
   • Go to System Settings > Privacy & Security
   • Scroll down and click Open Anyway next to the OpenCaptive message
   • Or right-click the app and select Open from the context menu

Gatekeeper bypass (command line)

If Gatekeeper blocks the app:

xattr -cr /Applications/OpenCaptive.app

Game data

Place your original game files in ~/.opencaptive/:

~/.opencaptive/
  CAPTIVE.ZIP
  LIBERATION.ISO

Files are identified by SHA-256 content hash, not filename. ZIP archives, ADF disk images, and ISO tracks are scanned automatically. Press D on the main menu to run the data scanner.

System requirements

• macOS 14 (Sonoma) or later
• Apple Silicon (arm64)
• Original game data files (not included)

Building from source

brew install cmake ninja sdl3 sdl3_ttf
cmake -S . -B build -DCMAKE_C_COMPILER=cc -G Ninja
ninja -C build

Language

OpenCaptive reads your macOS system language automatically via System Settings > General > Language & Region. The app supports 19 languages including Swedish and English. Menu items (Quit, Hide, Minimize, etc.) are localized to match.