Fort Apocalypse
Fort Apocalypse (Atari 8-bit, 1982) has an official source code release, heyigor/FortApocalypse.
Data checked 2026-10-13 · unbaked registry
Projects
The original Atari 400/800 6502 assembly code for the classic game Fort Apocalypse.
Wikipedia: source-available (non-OSI), freeware data; source released 2015 by/for Steve Hales / Synapse Software. In 2007 the Atari 8-bit game was relicensed to a CC BY-NC-ND 2.5 by Steve Hales and released on IgorLabs. On April 23, 2015…
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Free game data is included with at least one project.
More on Atari 8-bit
Found via en.wikipedia.org/wiki/List_of_commercial_video_g, igorlabs.com/classic-games
GitHub data checked 2026-10-13. Notes are summaries from the research pass; the project pages are the authority.