Linux gaming continues to gain momentum thanks to Valve and its Proton compatibility layer. With the release of Proton 10.0-4, Steam users on Linux can now play 19 additional games that previously required experimental builds, alongside numerous bug fixes that improve stability and performance across the board.
What Is Proton and Why Does It Matter
Proton is Valve’s Windows compatibility layer for Linux, built on top of the open-source Wine project. It allows Windows-only PC games to run on Linux through Steam with minimal setup, translating DirectX calls into Vulkan and handling Windows APIs behind the scenes.
For Linux gamers, Proton is the key reason why thousands of Windows titles are now playable without dual-booting or virtualization.
Proton 10.0-4: What’s New
The latest update doesn’t overhaul Proton’s foundation just yet—it’s still based on Wine 10 rather than the newly released Wine 11—but it does bring meaningful improvements.
19 New Playable Games
All of the following titles were previously functional in Proton Experimental and are now officially supported in Proton 10.0-4:
- Surgeon Simulator: Experience Reality
- Changeling VR
- Summoners War: RUSH
- Quantum Threshold
- REACH
- Fellowship
- Metal Slug: Awakening
- The Obsessive Shadow
- Drop Dead: The Cabin
- Zero Caliber 2 Remastered
- Lost Memories 3 Side Stories
- Death by Scrolling
- Stellar Reach
- Girls' Frontline
- Modules
- Distant Worlds 2
- ?????2
- Ring Runner: Flight of the Sages
- Chronology
The list includes a mix of standard PC titles and VR games, further strengthening Linux’s position as a viable gaming platform.
Major Bug Fixes and Improvements
Beyond new game support, Proton 10.0-4 addresses issues affecting many well-known titles, including:
- Far Cry 5
- Age of Empires IV Anniversary Edition
- Marvel Rivals
- Assassin’s Creed Shadows
- CHRONO TRIGGER
- Sackboy: A Big Adventure
Valve also fixed a long-standing bug that caused extended launch times for some Xbox Game Studios titles, impacting games like Avowed, Grounded 2, Indiana Jones and the Great Circle, and The Outer Worlds 2.
Audio enthusiasts will also appreciate fixes to 7.1 channel audio mapping in titles such as Ghost of Tsushima Director’s Cut and Clair Obscur: Expedition 33.
Under-the-Hood Updates
Proton 10.0-4 ships with updated components that enable these improvements, including newer versions of VKD3D (the Direct3D 12 to Vulkan translation layer) and Wine Mono 10.4.1. While the jump to Wine 11 isn’t here yet, this update lays solid groundwork for future gains.
How to Get the Update
The update is rolling out automatically to Steam on Linux. If you want to manually select a specific Proton version for a game, you can do so by right-clicking the title in your library and navigating to Properties ? Compatibility.
Linux Gaming Keeps Getting Better
Each Proton release chips away at the old assumption that Linux isn’t suitable for gaming. With more titles becoming playable and long-standing issues being resolved, Proton 10.0-4 is another strong step forward—especially for players who want a console-like experience on PC without leaving Linux behind.
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