Horizon v2.1.1

BBC Model B Emulator

Horizon (formerly MacBeebEm) was one of the first emulators available for Macintosh. Despite this, it has fairly good compatibility with original BBC software, allowing you to play titles such as Elite without problems. The macOS version adds an improved GUI and significantly improved sound to the original version.



  • Support for Tape, Disk, and ROM images.
  • Support for high-resolution video output.
  • Cycle-accurate sound (speech effects in Repton 2 work perfectly).


Horizon (1.5MB)

Optional Extras

This software can be used with Emulator Enhancer, a shareware add-on that includes:

  • Support for USB joysticks and gamepads.
  • Support for full screen mode.
  • Support for audio effects.
  • Support for opening recent games quickly.
  • Much much more.
Download Emulator Enhancer v3.2.0 (1.2MB)