SiN
SiN (PC, 1998) has an official source code release, NightDive-Studio/sin-ex-game, and 1 other public project.
Data checked 2026-10-12 · unbaked registry
Projects
Source releaseC++ (Quake II-derived game DLL)62 starspushed 2020-03-18custom license
Nightdive Studios SiN Gold Game Source
Nightdive published SiN Gold game-DLL source (2020) for the KEX re-release; engine closed.
Sin & Sin Mission Pack: Wages of Sin
Source release
Wikipedia: source-available (non-OSI license and/or partial SDK code); source released 1998 by/for Ritual Entertainment. Game code was officially released.
What you need
You need your own copy of the game: these projects ship code only.
More on PC
GameMethodYearStarsLast push
PCMindustrySource releaseAgent environment201929k2026-10-11PCosu!Source releaseReadable bytecode+1200719k2026-10-12PCCommand & Conquer Remastered CollectionSource release202021k2025-01-16PCRollerCoaster Tycoon 2ReimplementationAgent environment200216k2026-10-12PCDune 2000Reimplementation199818k2026-10-11PCAge of Empires IIReimplementation199914k2026-10-03PCCataclysm: Dark Days AheadSource release201313k2026-10-12PCCivilization VSource releaseReimplementation201011k2026-10-12Found via en.wikipedia.org/wiki/List_of_commercial_video_g
GitHub data checked 2026-10-12. Notes are summaries from the research pass; the project pages are the authority.