Gran Turismo Sport Is Now Running on PC Thanks to an Unofficial Port, With FSR 3.1 Support

While Sony has brought many of its original PlayStation exclusives to PC in recent years, including God of War, Spider-Man, and The Last of Us, the Gran Turismo series has remained on consoles. That is now changing, at least in part, thanks to a community project that gets Gran Turismo Sport running on Windows without traditional emulation.

The project is led by developer mlgprorektm8 and the RyGT tool, built on the Ryty project and the modified shadGT Vulkan renderer. Instead of emulating the entire PlayStation 4, the original executable is converted so it can run directly on a PC processor, while additional libraries replace the console’s required system functions.

The game now launches, and its menus, vehicle and track selection, races, results screens, audio, and controllers all work. However, this is still not a finished, trouble-free port, and users should expect technical limitations and a more complicated setup process.

Shader compilation is a key focus for the developer

One area the developer has focused on most is shader compilation. In projects like this, it often causes significant stuttering when a new effect or object first appears.

RyGT therefore offers three modes. The game can precompile known shaders during the initial splash screen; in one test, about 13,600 graphics pipelines were prepared in roughly 25 seconds. The process is significantly shorter on subsequent launches.

The second option briefly pauses the game completely when a new shader appears and waits for it to compile. Rather than causing a sudden drop in performance or delaying an object’s rendering, this gives the player a short pause. The compiled shader is then saved, so it will not cause another pause the next time.

The third option is batch shader compilation. During a single pause, the game can also prepare shaders it will need moments later, reducing the number of individual interruptions. Compilation can also use efficiency CPU cores, leaving performance cores free for the game itself.

FSR 3.1 Frame Generation is also included

Another notable feature is AMD FSR 3.1 Frame Generation, which can generate additional frames between traditionally rendered ones to increase the displayed frame rate.

There is, however, a significant catch. Gran Turismo Sport does not provide the port with motion vectors, which modern frame-generation technologies commonly use to determine how objects are moving. This can result in ghosting around fast-moving edges and visual glitches in the user interface. The developer therefore recommends using Frame Generation only when the game is already running at roughly 40 fps or higher without it.

Performance currently depends on the track, the number of cars, and other conditions. The developer has tested the port on systems including a Core i7-13700KF with an RTX 4070 Ti and a Ryzen 5 9600X with an RTX 3060 12 GB. Current reports put race performance at around 42 to 60 fps, but these are not official system requirements or guaranteed results across all configurations.

You need your own game files

RyGT does not include Gran Turismo Sport itself or PlayStation 4 firmware files. To run it, you need your own dumped and decrypted copy of Gran Turismo Sport CUSA03220 with update 1.69, as well as several system modules obtained from your own console.

The project then converts those files and creates the Windows executable GTSport.exe. Current versions include a launcher that simplifies some of the configuration, but the process is still considerably more technical than installing a PC game normally.

Online features do not work

The port is also focused exclusively on Gran Turismo Sport’s offline content. Online features are not supported, and the original PS4 version no longer has active official servers either. Sony and Polyphony Digital shut them down on January 31, 2024.

This means Sport Mode, online lobbies, and community features are unavailable. However, after the online services ended, the game received changes that allow players to continue with selected offline content.

Gran Turismo 7 could be next

Notably, Gran Turismo Sport may not be the only game in the series to make its way to PC this way. Gran Turismo 7 is also available on PlayStation 4, so similar methods could theoretically be used for the newer entry.

For now, however, that is only a possibility, and no working PC port of Gran Turismo 7 has been unveiled. Gran Turismo Sport remains the project in development and is another example of how quickly community PS4 porting projects are advancing.

Sony has yet to announce an official PC version of any Gran Turismo game. Until it does, the series will be making its way to PC through the back door, via projects like RyGT.

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