ZX81 / Timex Sinclair 1000 / 1500

The Sinclair ZX81 was a home computer produced by Sinclair Research and manufactured in Scotland by Timex Corporation. It was launched in the United Kingdom in March 1981 as the successor to Sinclair's ZX80 kit and was designed to be a low-cost introduction to home computing for the mass public.

The ZX81 computer was designed to be small, simple, and above all cheap, and could be bought by mail order in ZX81 kit form or as a pre-assembled unit.

Revival Studios - ZX-81 / Timex Sinclair 1000 / TS 1500 game development

Without a dedicated graphics chip and only 1kb of RAM (of which already 800 bytes are needed for just the screenbuffer), the unexpanded machine was considered very limited. This is why most zx81 computer programs and games make use of the 16kb ram-pack.

These are the zx81 programs that i have developed for the system:

Avalanche (2011)
Mayhem (2011)
Down! (Q3-2012)
Stairrunner (Q4-2012)
Shifted (Q1-2013)
Rush (Q2-2013) *To be released Q2-2013*
Boxing Champ (Q3-2013) *To be released Q3-2013*
Exile (Q4-2013) *To be released Q4-2013*

Twirl Demo (2010)
Essentials (2012)

More ZX81 games and demo's will be added in the near future.