Fortnite
Fortnite (PC, 2017) has a decompilation, ApfelTeeSaft/OT6-Reconstruction, and 1 other public project, including an open-source reimplementation.
Data checked 2026-10-12 · unbaked registry
Projects
DecompIDA Pro21 starspushed 2026-01-08no license
Fortnite Alpha (2016, Online Test 6.5) Decompilation of Gameserver Specific Logic.
Fortnite Alpha (2016, Online Test 6.5) Decompilation of Gameserver Specific Logic; no GitHub releases; repo created 2025-11-15
Fortnite OG (omonkeyzz Rust rebuild)
ReimplementationRust, compiled for the browser (public test with F2 admin panel)
TAKEN DOWN: Epic Games had the fan site removed; not playable anywhere (per INXANITY). Closed source.
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 inxanitylabs.com/games/fortnite-og
GitHub data checked 2026-10-12. Notes are summaries from the research pass; the project pages are the authority.