DOS Decompilations & Recompilations
9 open-source decompilation and static recompilation projects for DOS games — rebuilt from the original binary so they can run natively on modern hardware.
Active
Halted
Original game image
Original game imageClone of ZZT
A byte-for-byte accurate reverse-engineered reconstruction of ZZT 3.2's lost original source code.
Platforms:DOS
Stars385
Updated1 year ago
LicenseUnknown
Release2020
Genre: Action
Theme: —
Halted
Clone of Duke Nukem II
Duke 2 Reconstructed is a from-scratch reconstruction of Duke Nukem II's source code from disassembly, producing a byte-identical binary.
Halted
Clone of Cosmo's Cosmic Adventure
A reconstruction of Cosmo's Cosmic Adventure v1.20 source code, measured at 96.30% byte-for-byte accuracy against the original DOS binary.
Halted
Original game image
Original game imageClone of Ultima VI
A reverse-engineered decompilation of the 1990 MS-DOS Ultima VI, rebuilt via disassembly to match the original executable.
Active
A reverse-engineered, touch-friendly port of the 1992 DOS game ShortLine v1.1 that also runs in a browser.
Stars39
Updated3 months ago
LicenseGPL-3.0
Release2024
Genre: —
Theme: —
Halted
Original game image
Original game imageClone of Bio Menace
A work-in-progress decompilation of Bio Menace, matching the original episode 1 executable byte-for-byte; episodes 2-3 aren't done.
Active
Original game image
Original game imageClone of Bumpy's Arcade Fantasy
This is a structure-faithful C decompilation of Bumpy's Arcade Fantasy's original DOS engine, requiring the player's own game data.
Halted
Frequently asked questions
- What is a game decompilation?
- A decompilation project reconstructs readable source code from a game's compiled binary. Contributors compare their code with the original executable until it produces the same result, which makes the game understandable, rebuildable and portable.
- What is a static recompilation?
- A static recompilation translates the original game's compiled machine code ahead of time into a native program for another platform, usually a PC port, instead of emulating the console while you play.
- Do I need the original game to use these projects?
- In most cases yes. These projects ship code only, not the game's art, audio or data, so you supply your own legally obtained copy. Each page states what a project needs to run.
- Are these projects legal?
- The code written by the project's contributors is licensed by them, but the original game's assets and code stay the property of their rights holders. Each page lists who licenses what, as stated in the project's own repository.