Fan Patches & Enhancements (Game Decompilations & Reimplementations): open-source projects that exist because someone reverse engineered a closed product, sorted by GitHub stars.
Majora's Mask 3D patch restoring original mechanics via reverse engineering
A project designed to enhance Silent Hill 2 (SH2) graphics and audio for the PC. It also includes scripts to build or...
Two-player online battle mode for Plants vs. Zombies built via reverse engineering and DLL injection
VR conversion of the original PC Halo: Combat Evolved
Unofficial balancing and bugfix patch installer for Stronghold Crusader
Wind Waker Randomizer
Mod adding third-person camera and controls to MGS2: Substance
Resolution patch for Chinese Paladin 3
Bugfix and modding plugin for SimCity 2000 Special Edition
Patched executables and research notes for PopCap games
Patches that add save-state support to Game Boy games on original hardware
Ultima IV Remastered for the C64
Adds Tekken Tag Tournament characters to Tekken 3
Mod that fixes resolution, image quality and frame rate in Bunny Garden 2 (PC)
Reverse engineered fixes and optimisations for Magicka
Neon Genesis Evangelion 2 reverse engineering and translation
Rollback netcode mod for Ultra Street Fighter IV (Steam)
Patcher for Cyber Troopers Virtual-On (PC, 1997) with modern hardware and online support
Enhancements to the Atari ST version of Lotus Esprit Turbo Challenge to support STE hardware features
Newer Super Mario Bros. DS, a total-conversion mod built on reverse-engineered NSMB code
Ultima V remastered for EasyFlash and 1581
Tool for Beasts and Bumpkins game data (osgameclones) (Go)
The master TTDPatch repository