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Classic Mac Games

Games and toys for the original black-and-white Macintosh: an 8 MHz 68000, a 1-bit screen and System 6. Written in C and built on a modern Mac.

  • 2026
  • Development
  • Game Design
  • Retro
Just One Boss title screen on a 1-bit Macintosh
Just One Boss laser attack on a 1-bit Macintosh
Celeste Classic gameplay on a 1-bit Macintosh

Designing for 1 bit and 8 MHz

These run on a stock Mac Plus, SE or Classic with 1 to 4 MB of RAM, or in an emulator. Every frame has to read in pure black and white, and every effect has to fit a 68000 with no floating-point unit.

  • One Foe, an original single-boss bullet-hell duel with four attack phases.
  • Celeste Classic, a port of the PICO-8 original.
  • Just One Boss, a port of the PICO-8 one-boss bullet dodger, made with its creator's permission.
  • Small toys and desk accessories, built with the Retro68 cross-compiler.

Most projects include a floppy disk image you can mount in an emulator or copy to real hardware.

View classic-mac on GitHub · Celeste port · Just One Boss port