Star Wars: Knights of the Old Republic

Star Wars: Knights of the Old Republic (Xbox, 2003) has an open-source reimplementation, xoreos/xoreos, and 3 other public projects, including a static recompilation and a source port.

Data checked 2026-10-12 · unbaked registry

pcrecomp

Projects

xoreos / reone / KotOR.js

ReimplementationC++ (xoreos, reone), JavaScript/WebGL (KotOR.js)1,182 starspushed 2026-09-04GPL-3.0 licenserelease v0.0.6

A reimplementation of BioWare's Aurora engine (and derivatives). Pre-pre-alpha :P

xoreos: Aurora/Odyssey reimplementation, pre-alpha, active (pushed Sep 2026); reone (seedhartha): KotOR+TSL engine, last push Apr 2025; KotOR.js: JS Odyssey remake, active Sep 2026

reone

Reimplementation · Source portC++314 starspushed 2025-04-06GPL-3.0 license

Game engine capable of running KotOR and TSL

status alpha

KotOR.js

ReimplementationTypeScript/Three.js149 starspushed 2026-09-14GPL-3.0 license

A remake of the Odyssey Game Engine that powered KotOR I & II written in JavaScript

Semi-playable JS remake

kotor-recompnew, unvetted

Static recomppcrecomp (sp00nznet x86 PC static recompiler)2 starspushed 2026-10-10custom license

Static recompilation of Star Wars: Knights of the Old Republic (PC) to native C, on pcrecomp - fixing the engine's modern-PC problems in its own code

Static recompilation of KotOR PC to native C, fixing modern-PC problems in its own code (Oct 2026)

What you need

You need your own copy of the game: these projects ship code only.

Same toolchain

GameMethodYearStarsLast push

DOSSimCity 2000Static recompReimplementation+119935.3k2026-10-11 PCBlack & WhiteMatching decompStatic recomp+120011.6k2026-10-12 PCUnreal TournamentSource releaseStatic recomp+319991.5k2026-10-12 PCCommand & Conquer: Tiberian SunMatching decompDecomp+319995702026-10-11 DOSBlake Stone: Aliens of GoldStatic recompSource port19933692026-10-10 PCStar Wars: X-Wing AllianceStatic recompReimplementation19991522026-10-10 PCNeed for Speed: Underground 2Matching decompStatic recomp+12004892026-10-12 PCJurassic Park: TrespasserStatic recompReimplementation19981252026-09-10

More on Xbox

GameMethodYearStarsLast push

XBOXHalo: Combat EvolvedMatching decompDecomp+420014472026-10-12 XBOXDead or Alive Xtreme Beach VolleyballStatic recomp20031472026-10-12 XBOXMercenaries: Playground of DestructionStatic recomp20051062026-10-06 XBOXTom Clancy's Splinter Cell: Double AgentStatic recomp20061242026-10-12 XBOXStar Wars: Episode III - Revenge of the SithStatic recompSource port2005402026-10-10 XBOXHalo 2Matching decomp2004612026-10-12 XBOXThe Lord of the Rings: The Two TowersStatic recomp2002142026-10-12 XBOXDead or Alive 3Matching decompStatic recomp2001122026-10-12

Found via seedhartha/reone, KobaltBlu/KotOR.js, deadlystream.com/topic/11948-kotor-1-gog-reverse, 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.