Recomp / Games / Windows

GTA4Unity

Unity 6 ECS project that reads GTA IV's original archives, models, textures and placements to load and render its world, as the base of an engine reimplementation.

Rewrite Not stated wip
Image: the project's own README · source
Stars—
Commits, 30 days—
Latest release—
Last push—

Facts

Original
Grand Theft Auto IV (2008)
Platform
Windows
Method
Rewrite
Provenance
Not stated what this means
Status
wip
Licence
GPL-3.0
Team
Infinity-Loops
Started
2024-10
Runs on
Windows
Needs the original
Yes: you supply your own legally obtained copy

How to get it legally

This project ships code only. Build or download it from the official repository, then supply data from a copy of Grand Theft Auto IV you own. Recomp never links to ROMs, discs or game data.

This project was rebuilt by Infinity-Loops. Facts last checked 2026-10-17. Suggest a correction

Sources

Something wrong or out of date? Send a correction.

+6 ★ in 3 days

Xbox 360 · 2008 · ★ 83

Theft4

Grand Theft Auto IV

Experimental ahead-of-time recompilation of the Xbox 360 build of GTA IV to ARM64 for iOS and iPadOS.

Static recomp Not stated

Windows · 1995 · ★ 77

3D Pinball Space Cadet Disassembly

3D Pinball for Windows: Space Cadet

Archived disassembly of the Windows pinball game; the author points to the SpaceCadetPinball project for a working version.

Decompilation Human-led
+2 ★ in 3 days

Windows · 2000 · ★ 313

Abyss Engine

Diablo II

Clean-room reimplementation of the Diablo II engine written in C, aiming to recreate the original game. Last updated April 2024.

Clean-room Not stated

Windows · 1997 · ★ 128

Age of Empires Free Software Remake

Age of Empires and The Rise of Rome

C++ reimplementation of Age of Empires and its Rise of Rome expansion on the Genie engine design, written as a non-profit hobby project.

Rewrite Human-led
+2 ★ in 3 days

Windows · 2001 · ★ 136

Arcanum Unity Reimplementation

Arcanum: Of Steamworks and Magick Obscura

Fan-made reimplementation of the Arcanum engine, built from scratch in Unity 6 with C# and a 2D URP pipeline.

Rewrite Not stated

Windows · 1999

AutoZone High Stakes

Need for Speed: High Stakes (PC 4.50)

Open implementation of the PC version 4.50 of Need for Speed: High Stakes, reverse engineered from the Watcom-built binaries, aiming at a fully playable game and later 64-bit and new renderers.

Rewrite Not stated