Back in the 90s, Christoph Zwerschke wrote a Sinclair ZX81 emulator for the Atari ST. From what I've so far seen, it's mute and the graphics are made up from monochrome blocks rather than colourful pixels. This might seem rather lame but there is a certain charm to the itsy-bitsy computer with less processing power than a kettle!
10 PRINT "ATARICRYPT ROCKS YOUR ST WORLD"
20 GOTO 10
I've never previously owned a ZX81 so was shocked to find lots of games which are surprisingly very playable. 3D Monster Maze by Malcolm Evans is such an example and highly regarded as one of the best reasons why many adore this quirky old paperweight. Truly, this game is way ahead of its time and perhaps even the first survival horror game using a first-person perspective? (check out Retro Resolution for a fantastic review!).
Okay, the stock Atari ST should be able to run most of the games perfectly fine and from either a floppy or (better still) a hard drive device. However, if you feel that the ZX81 is running in overdrive, then hit the UNDO key and adjust the speed limiter. I needed to do this for Pac-Man which was otherwise insanely too fast!
Boot up this fantastic ZX81 emulator and flip your Atari ST into a Sinclair. Party like it's 1981 and have fun!! :^)
Other Sinclair ZX81 games I really, really like!