Valve has announced the release of Proton 9.0-4, an updated version of its popular open-source compatibility tool designed for Steam Play, which allows Windows games to run on Linux systems. This release, which comes almost three months after Proton 9.0-3, expands its support to include notable titles such as Total War: SHOGUN 2 and Warhammer 40,000: Space Marine 2, along with games like Welcome to Dustown, Sniper Elite: Nazi Zombie Army 2, and ScarQuest.
In addition to these new titles, Proton 9.0-4 enhances support for a variety of other Windows games already in the library. Notable improvements were made for games like THE FINALS, DOOM Eternal, Final Fantasy XVI, and several installments of the Yakuza franchise, among others.
The update also includes enhancements for various popular games such as Red Dead Redemption 2, Age of Empires II: Definitive Edition, and Fallout: New Vegas, improving overall gameplay experiences across the board.
Beyond game support, Proton 9.0-4 introduces new features, including support for NVIDIA’s Optical Flow API and DLSS 3 Frame Generation technology, which may enhance graphics performance during gameplay. The release also warns users in its logs when operating on systems with a low max_map_count, ensuring better system compatibility.
Powered by Wine Mono 9.3.1 and several other components including DXVK 2.5.1, Proton 9.0-4 promises improved stability and performance for users running a variety of Windows applications on their Linux systems.
To enable Proton 9.0-4 in your Steam Library, simply right-click on a game, select Preferences, and navigate to the Compatibility section, where you can select the new version from the dropdown list.
For a comprehensive list of changes and improvements, check out the release notes.