Open source repositories tagged with #decompilation, ranked by health score.
Multiplatform and Feature-rich Port based on PSX decompilation of Silent Hill 1 made with Claude and Psycross. Still in beta and is in active development.
Decompilation of Castlevania: Symphony of the Night (PSX, PSP, Saturn)
From-scratch, byte-matching decompilation of Super Mario 64 DS into C/C++, with a live progress atlas and matching tools.
Halo 2 decompilation (decomp) for the original Xbox: a matching decompilation of the retail game into C/C++ source, rebuilt byte for byte, toward native PC, Linux and handheld ports. Contributors welcome. Source only; bring your own disc.
Decompiler for Unreal package files (.upk, .u, .uasset; etc), with support for Unreal Engine 1, 2, and 3