The AMD RADV driver is an open-source driver in the Mesa 3D graphics library optimized for running Vulkan games and software. RADV is the default Linux graphics driver on many AMD-powered Linux systems. Until now, Windows has had no open-source drivers for any GPU maker, but Valve is apparently looking to change that by funding development of the AMD RADV driver for Windows.

The actual driver porting is being done by Collabora, who often works with Valve on low-level software development, but Valve has sponsored the first phase of the project, according to a recent blog post by Collabora. The development outfit explains that it has managed to run Counter-Strike 2 on the new driver, but that there are still challenges that need to be solved. One of those challenges holding development back.