Thief: The Dark Project
Thief: The Dark Project (PC, 1998) has an open-source reimplementation, volca02/openDarkEngine, and 1 other public project.
Data checked 2026-10-13 · unbaked registry
Projects
ReimplementationC++, OGRE174 starspushed 2018-05-14GPL-2.0 license
Rewrite of the Dark Engine by Looking Glass
Inactive, unplayable ()
Thief: The Dark Project / Thief II
RE candidate
Not yet decompiled (as of 2026-10 searches); candidate for agentic RE (REA/Ghidra/pcrecomp)
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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 osgameclones.com/, en.wikipedia.org/wiki/List_of_game_engine_recrea
GitHub data checked 2026-10-13. Notes are summaries from the research pass; the project pages are the authority.