Valve has issued a hotfix for Proton Experimental, addressing regressions that broke several games on Linux. This update concludes a significant week of improvements for the compatibility layer. The changes aim to restore functionality for affected titles.
Proton Experimental, Valve's tool for running Windows games on Linux through Steam, received a crucial update on November 27, 2025. The hotfix targets regressions that had rendered multiple games unplayable on Linux systems. According to the announcement, this release fixes issues for several broken games, ensuring smoother compatibility.
The update comes after a productive week of development for Proton Experimental, marking the culmination of ongoing efforts to enhance Linux gaming support. Valve's Proton project has been pivotal in bridging the gap between Windows-exclusive titles and Linux users, particularly via the Steam Deck handheld.
No specific list of fixed games was detailed in the initial report, but the focus on regressions suggests targeted repairs for recently introduced bugs. This development underscores Valve's commitment to cross-platform play, benefiting the growing Linux gaming community.