- Steam App
- Rattus Velocitas (3689710)
- Event type
- patch note
- Published
- 3 September 2025 - 04:53:56 UTC
- Source
- steam_community_announcements
G'day Rat Racers.In the past month I have been receiving increasing reports of AMD graphics cards on Windows struggling to run this game, with some computers outright crashing on startup. If this is happening to you, as of today, I have added an extra launch configuration that launches this game using D3D11 instead of Vulkan, which seems to be the root cause. In the event you can't see the new launch configuration and want to try D3D11 mode on an AMD graphics card:Right-click Rattus Velocitas > PropertiesIn the Steam Launch Options, enter -force-d3d11Close the properties box, then launch the game.Please note that the "Reduce Latency" option in D3D11 mode may result in a significant framerate reduction, this is a known issue.UPDATE 7th September 2025: I have also identified an issue where the same AMD systems can sometimes hang when loading a race. For this specific case, please use -disa...