Tibia
Tibia (PC, 1997) has an open-source reimplementation, otland/forgottenserver.
Data checked 2026-10-12 · unbaked registry
Projects
ReimplementationC++ + Lua scripts (actions, monsters, spells)1,842 starspushed 2026-10-12GPL-2.0 licenserelease v1.6
A free and open-source MMORPG server emulator written in C++
GitHub
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 opentibiabr/canary
GitHub data checked 2026-10-12. Notes are summaries from the research pass; the project pages are the authority.