Multiplayer
Support in this project — multiplayer in the original game may differ.
Local
On the same device
Not confirmedLAN
Over a local network
Not confirmedOnline
Over the internet
Not confirmed“Documented support” means reported by the project. AllRecomps has not tested matches or servers. “Not confirmed” does not mean the feature does not work. Report a correction ↗
About this project
GT4Recomp translates EE game code and VU0/VU1 microprograms ahead of time, replacing IOP services. The author calls this hybrid recompilation because PS2 hardware is still modelled in software; GSdx runs in a separate process, so zero emulation or full PS2 fidelity is not claimed.
Source: Official project README — editorial review ↗ · Checked Oct 23, 2026
The 1.2.3 path documents higher resolutions, ultrawide with centred HUD, render scale, custom textures, controller remapping and a save-aware launcher. Reported 60 FPS samples use a specific Ryzen/Radeon test PC and are not a general performance guarantee.
Source: Official project README — editorial review ↗ · Checked Oct 23, 2026
Compatibility
Version 1.2.3 requires Windows 10/11 x64, SSE4.1, Vulkan 1.2, the player’s own Gran Turismo 4 USA v2.00 SCUS-97328 ISO and about 6 GB free for its local copy. Setup downloads the required separate GSdx renderer; WebView2 may also be installed if absent.
Source: Official project README — editorial review ↗ · Checked Oct 23, 2026
Documented support and independently tested compatibility are different. AllRecomps has not run these games.
Development progress
Public release v1.2.3 was published on 2026-10-22. Release availability is not a guarantee of complete gameplay or stability.
Source: Official release notes ↗ · Checked Oct 23, 2026
A newer 1.3.0-rc3 pre-release exists for testing and is explicitly not offered as an automatic launcher update. It introduces a portable package, separate Spec II support and additional graphics-API options. Those RC features are not presented as already part of public 1.2.3.
Source: Official 1.3.0 RC3 testing release ↗ · Checked Oct 23, 2026
The latest non-prerelease GitHub release observed is v1.2.3. A release does not establish stability, complete gameplay or tested platform support.
Source: GitHub latest release (automatic) ↗ · Checked Oct 23, 2026
Known limitations
Some licence demos/menu backgrounds do not play, racing wheels are unsupported, long sessions are not fully qualified and ultrawide split-screen/photo mode have limited testing. CoreGS 2.0, native Linux and Android are future work. RC3 additionally skips some Spec II licence demos.
Source: Official project README — editorial review ↗ · Checked Oct 23, 2026
Getting started
For the established 1.2.3 path, get GT4Recomp-Setup-1.2.3.exe, install it, open Gran Turismo 4 and select your supported ISO. Let setup verify/copy the image and obtain GSdx, then Play. Settings/saves/replays live in %APPDATA%/GT4Recomp; RC installers are optional testing downloads.
Source: Official project README — editorial review ↗ · Checked Oct 23, 2026
Some projects require files from your own copy of the original game. Follow the official instructions.
