Alien Bash
Alien Bash (Amiga, 1993) has an official source code release.
Projects
Alien Bash I+II
Source release
Wikipedia: open engine AND open game data; source released 2014 by/for Glen Cumming. Glen Cumming provided media and material of his Amiga games AlienBash and AlienBash II to the fan community, who was able to restore source code in 2014.
What you need
Free game data is included with at least one project.
More on Amiga
GameMethodYearStarsLast push
AMIAnother WorldMatching decompReimplementation+219919192026-10-11AMICannon FodderReimplementation19936052026-10-04AMIAmbermoonSource releaseReimplementation19935402026-10-06AMIThe SettlersReimplementation19933392026-10-12AMIPinball FantasiesSource releaseReimplementation+119921742026-10-12AMIStunt Car RacerSource releaseReimplementation+119891072026-10-11AMIGloomSource releaseReimplementation+119951052026-08-29AMILionheartReimplementation1993862026-08-13Found via en.wikipedia.org/wiki/List_of_commercial_video_g, eab.abime.net/showpost.php?p=1010237&postcount=2
GitHub data checked 2026-10-12. Notes are summaries from the research pass; the project pages are the authority.