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Gray Brick

A revolutionary new way to play your favorite Game Boy™ games on your Apple™ Macintosh™!

Now you can enjoy the hottest handheld games right on your Mac's big screen! Gray Brick brings the excitement of Nintendo's new Game Boy to your desktop with stunning speed and accuracy.

Features

• Lightning-fast performance: Revolutionary Just-In-Time compilation technology translates Game Boy code directly to your Macintosh's native 68000 instructions.
• Games are displayed at 2x magnification (320x288 pixels) with advanced ordered dithering that looks great on any Mac display, color or black & white.
• Supports Memory Bank Controllers including MBC1 and MBC3. Play Tetris™, Super Mario Land™, and hundreds of other titles!
• Your game progress is preserved, just like the original cartridge. Save files can be backed up to floppy disk.
• Intuitive Macintosh interface: Configure your keyboard layout with our easy Key Mapping dialog. Take screen captures with a single menu command!

System Requirements

• Macintosh Plus, SE, SE/30, Classic, or Macintosh II series
• System 6.0.5 or later
• 4 MB RAM (for basic games, 8-16 MB for larger games)
• Hard disk with 500K free space
• Game Boy ROM images (not included)

Download

Get Gray Brick right here on the World Wide Web by navigating to the GitHub releases page. For more technical details, see the README.

Non marketing speak

For best performance, a 68030 or 68040 processor is recommended. Original "compact" 68000 Macs get 7-8 FPS. 68030s get 30-60+ FPS depending on settings. 68040s excel with any settings.

Although this emulator is indeed fast considering the target platform, accuracy and compatibility are actually not good. Many of the most popular games work well, but I haven't tested most of the Game Boy's huge catalog.

Last updated 22 Jan 2026