Valve Corporation announced Proton 10.0-3 on November 13, 2025, a stable update to its compatibility layer that enhances running Windows games on Linux systems, including the Steam Deck. The release includes dozens of fixes and optimizations for various titles and hardware. It builds on prior versions to narrow the gap between Windows and Linux gaming.
Valve's Proton 10.0-3, released on November 13, 2025, advances cross-platform gaming by improving the translation of Windows API calls to Linux equivalents through a modified version of Wine, developed with CodeWeavers. This update follows the Proton 10.0-2 Release Candidate from June 2025 and the Proton 10.0 Beta from April 2025.
Key technical updates include Wine-Mono 10.0.0, DXVK 2.5, and vkd3d-proton 2.13.1, addressing Direct3D rendering and Vulkan translation issues. Specific fixes resolve crashes in Assassin's Creed: Valhalla, making Call of Juarez: Gunslinger and Warhammer 40,000: Speed Freeks playable. It also tackles launch problems in Delta Force, input issues in Dragon Age: The Veilguard, and graphical artifacts in Cyberpunk 2077 on AMD hardware.
Newly playable titles encompass Immortals: Fenyx Rising and Microsoft Flight Simulator (2020). Anti-cheat fixes enable support for Hell Let Loose. For the Steam Deck, optimizations fix video playback in God of War Ragnarök, audio glitches in Marvel's Spider-Man Remastered, and HDR crashes in Horizon Forbidden West, with hardware-specific improvements for AMD, Intel, and NVIDIA GPUs, including misrendering on Intel's ANV driver tied to Mesa 25.3-rc4 from November 7, 2025.
Community feedback highlights strong interest, with posts on X garnering thousands of views, though some users reported issues like compatibility problems with ARC Raiders. The update supports roughly 90% of Windows titles on Linux, bolstering SteamOS and desktop gaming ecosystems. Valve's efforts position it as a leader in open-source gaming technology, reducing reliance on Microsoft ecosystems.