Gloom
Gloom (Amiga, 1995) has an official source code release, earok/GloomAmiga, and 2 other public projects, including an open-source reimplementation and a source port.
Data checked 2026-10-12 · unbaked registry
Projects
Source code to the Amiga FPS classic by Black Magic
Wikipedia: open-source code, freeware data; source released 2017 by/for Black Magic. In January 2017 the assembly and BlitzBasic 2 source code of the Amiga Doom clone Gloom was released as public domain software under unlicense on GitHub.…
Reimplementation of an old Amiga FPS
Playable () PortMaster package: gloom.zip.
ZGloom is a modern source port of the Amiga FPS Gloom with improved renderer. It is mainly focused on OUYA Android support (might work on other devices too).
status beta
What you need
You need your own copy of the game: these projects ship code only.
More on Amiga
Found via en.wikipedia.org/wiki/List_of_commercial_video_g, earok/GloomAmiga/blob/master/LICENSE, osgameclones.com/, PortsMaster/PortMaster-New, kymie131.github.io/openportsgames/api/ports.json
GitHub data checked 2026-10-12. Notes are summaries from the research pass; the project pages are the authority.