Apple II decomps & recomps
5 community projects rebuild Apple II software: 0 static recompilations, 1 decompilation and 2 ports, rewrites and clean-room builds, plus 2 apps, tools and preservation projects. Most-starred first; GitHub data as of 2026-10-18.
Decompilations
| Project | Original | Status | Made | Latest | Stars |
|---|---|---|---|---|---|
| Choplifter reverse engineering | Choplifter | wip | Not stated | — | 100 |
Ports, rewrites & clean-room builds
| Project | Original | Status | Made | Latest | Stars |
|---|---|---|---|---|---|
| Sorcery | Wizardry: Proving Grounds of the Mad Overlord | wip | Human-led | — | 245 |
| Open Sosaria | Ultima (1981) | released | Not stated | v0.6.0 | 12 |
Apps & creative tools
| Project | Original | Status | Made | Latest | Stars |
|---|---|---|---|---|---|
| Apple II DeskTop | Apple II DeskTop (ProDOS GUI) | released | Human-led | v1.5 | 323 |
OS & system
| Project | Original | Status | Made | Latest | Stars |
|---|---|---|---|---|---|
| ApplEm | Apple IIe / Apple II Plus | released | AI-assisted | v1.6.0 | 20 |
Can I play Apple II games natively on PC?
Yes, for 1 game so far, including Open Sosaria. Most need data from your own copy of the original game.
What is the difference between a Apple II decomp and a recomp?
A decompilation rewrites the game's machine code as readable C that rebuilds the original; a static recompilation translates the machine code mechanically into C/C++ that runs natively. Recomps arrive faster; decomps are easier to mod and port.
Are these Apple II projects legal?
They publish code only, and the ones that need game data ask you to supply it from a copy you own. Recomp never links to ROMs, ISOs or game files.