Proton 11.0-2 lands for SteamOS and Linux hardware
Valve has released Proton 11.0-2, a new version of its Windows-to-Linux compatibility layer that ships as part of SteamOS updates for the Steam Deck and Steam Machine. The release delivers a broad set of bug fixes, performance improvements, and game compatibility changes targeting Linux and SteamOS devices, and the update is queued to roll out automatically through the Steam client on supported systems.
Nine titles newly marked as playable
The release notes list nine games newly classified as playable on Steam Deck hardware: AsteroidsHD, Plain Sight, Portal Worlds, Otherworld Legends, Heroes of the Three Kingdoms 7, Konkan Coast Pirate Solutions, SMILE GAME BUILDER, Tetrageddon Games, and the classic Warhammer: Dark Omen. Valve's documentation describes this set as representing a mix of indie releases and older titles that had previously failed to run under Proton.
Launch and performance regressions addressed
Proton 11.0-2 specifically targets compatibility regressions introduced by recent external game updates. Diablo IV, Metal Gear Solid V: The Phantom Pain, and Helldivers 2 are reported as fully operational again after separate updates broke their initial launch sequences, and recent SteamOS builds should no longer trigger the persistent black screen errors previously reported in Forza Horizon 4, Forza Horizon 5, and Forza Horizon 6.
Wider list of fixes across older and modern titles
The changelog spans dozens of individual issues. Command & Conquer entries including Generals, Renegade, Generals Zero Hour, Red Alert 3, Kane's Wrath, and Tiberium Wars now correctly detect custom Steam Workshop levels. Terraria should no longer perform worse than on Proton 10, Arma 3 workshop mods should no longer unnecessarily update on each launch, and Source SDK 2007 and 2013 Singleplayer should no longer fail to find gameinfo.txt. Further fixes cover Natural Selection 2 server connections, login-window behavior in The Talos Principle and its VR edition, a memory leak in The King of Fighters XIII Global Match, a low-resolution fullscreen issue in Resident Evil 2, alt+tab behavior in Homeworld 2 Classic and SHOGUN: Total War, fullscreen input in Need for Speed Hot Pursuit Remastered on SteamOS, a performance regression in Exanima, launcher rendering in Imperiums: Greek Wars, a ray-tracing load hang in Crysis 2 Remastered, a launch failure in Borderlands Game of the Year Enhanced, and the return of playability for The Coma 3: Bloodlines, alongside additional entries that extend through the documented list.
Toolchain and graphics-layer upgrades
Underlying translation components have been refreshed alongside the game-side fixes. Wine Mono has advanced to version 11.2.0 and FEX has moved to FEX-2607, while vkd3d-proton is updated to v3.0a-252-g212991fc2c26 from the proton-11 support branch, and dxvk advances to v2.7.1-498-ga6764047e587. The release also bumps vkd3d to version 2.0 and refreshes dxvk-nvapi to v0.9.2, changes Valve says directly address rendering anomalies on Nvidia GPUs and Wayland display servers. CEG-using games should also no longer take extra time to start.
Distribution and follow-up signal
Proton updates are delivered automatically through the Steam client on compatible Linux systems and SteamOS devices such as the Steam Deck once Valve queues the rollout, so no separate manual download is required. Valve's release documentation does not specify a date for the next Proton point release, and additional game-specific fixes and regressions are typically tracked through ongoing SteamOS and Proton changelogs rather than a fixed milestone.
Share this article
