NESNES · 1986 · action-adventure
The Legend of Zelda
The Legend of Zelda (NES, 1986) has an open-source reimplementation, ZQuestClassic/ZQuestClassic, and 8 other public projects, including a matching decompilation and a static recompilation. An agent environment already wraps it.
Data checked 2026-10-12 · unbaked registry
Projects
ZQuest Classic is a game engine for creating games similar to the original NES Zelda
development active; status playable; A game and editing tool that lets you create custom Legend of Zelda quests - forked from Zelda Classic
A complete disassembly of The Legend of Zelda
complete disassembly, builds ROM checked against clean dump; symbols used by LegendOfZeldaNESRecomp ()
Disassembly of Legend of Zelda
WIP disassembly ()
The Legend of Zelda recompiled for the NES using nesrecomp · Part of the R.A.I.D. community
recompiled using nesrecomp
An OpenAI Gym interface to The Legend of Zelda on the NES.
available (2026-05) ()
A remake of The Legend of Zelda
remake by the author of zelda1-disassembly, logic based on disassembly; enhanced fork aldonunez/Loz_enhanced ()
Zelda Classic is a 2D game engine and editor for creating custom Legend of Zelda games.
development sporadic; status playable; Zelda Classic is a game and editing tool that lets you create custom Legend of Zelda quests.
The Legend of Zelda (NES): byte-exact PRG0 reassembly from the aldonunez disassembly, plus a bring-your-own-ROM browser port. Ships no game assets.
andrewnakas/decompgames browser build: ca65/ld65 reassembly of the aldonunez 6502 disassembly, played in the browser on EmulatorJS 4.2.3 with the libretro fceumm core; verification: {"status": "byte-exact", "date": "2026-10-05", "browsers"…
Source code of some NES games
complete: 'Each source code is equal to the original ROM, compilable and editable' ()
What you need
You need your own copy of the game: these projects ship code only.
Agent environments
Same toolchain
More on NES
Found via osgameclones.com/, aldonunez/zelda1-disasm-labels, Kautenja/gym-zelda-1, datacrystal.tcrf.net/wiki/The_Legend_of_Zelda/RA, aldonunez/zelda1-disassembly
GitHub data checked 2026-10-12. Notes are summaries from the research pass; the project pages are the authority.