Apps similar to Altirra include CLK, which is free and open source. Other options are Steem Engine and Atari800Win PLus. In total there are three apps like Altirra for Windows, Linux and Mac.
A latency-hating emulator of: the Acorn Electron, BBC Micro and Archimedes, Amstrad CPC, Apple II/II+/IIe and early Macintosh, Atari 2600 and ST, ColecoVision, Enterprise 64/128, Commodore Vic-20 and Amiga, MSX 1/2, Oric 1/Atmos, early PC compatibles, Sinclair ZX80/81 and ZX Spectrum.
United States
Steem is an open source Atari STE emulator for Windows and Linux. It runs almost every ST program ever made without any problems. Steem is designed to be easy to use and has many unique features. Whether you want to run great old games, use MIDI apps just like you did on the ST...
United Kingdom
