PCPC
Undertale Yellow
Undertale Yellow (PC) has code that decompiles almost back to source, burnedpopcorn/UnderTale-Yellow-Decompilation.
Data checked 2026-10-12 · unbaked registry
Projects
Readable bytecode9 starspushed 2025-08-27no license
A Decompilation of UnderTale Yellow v1.2.1
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 SubmitGame/awesome-decomp-games, madpai/game-decomp-compendium/blob/main/skills/g, CharlotteCross1998/awesome-game-decompilations
GitHub data checked 2026-10-12. Notes are summaries from the research pass; the project pages are the authority.