Proton 10.0-4 Expands Linux Gaming Library with 20+ New Compatible Titles

Valve continues to strengthen Linux's gaming credentials with the release of Proton 10.0-4, the latest update to its Windows compatibility layer that enables thousands of Windows games to run on Linux systems. This update officially adds support for more than 20 new titles that previously required experimental tweaks or didn't work at all on Linux distributions.

Key Additions in Proton 10.0-4

After extensive testing in the Proton Experimental branch, these notable titles now have native-grade performance on Linux:

• Fellowship: A new dungeon-focused MMO experience
• Surgeon Simulator: Experience Reality: VR adaptation of the popular medical simulation
• Metal Slug: Awakening: Modern revival of the classic run-and-gun series
• Zero Caliber 2 Remastered: Enhanced version of the tactical VR shooter
• Lost Memories 3 Side Stories: Latest installment in the narrative adventure series

The full compatibility list includes:

• Changeling VR
• Summoners War: RUSH
• Quantum Threshold
• REACH
• The Obsessive Shadow
• Drop Dead: The Cabin
• Death by Scrolling
• Stellar Reach
• Girls' Frontline Modules
• Distant Worlds 2
• 懒人修仙传2 (Lazy Man's Cultivation 2)
• Ring Runner: Flight of the Sages
• Chronology

Technical Improvements Under the Hood

While Valve hasn't published detailed changelogs, community reports on ProtonDB suggest several underlying enhancements:

• Updated Wine 9.0 base with improved DirectX 12 translation
• Enhanced VR controller mapping for OpenXR titles
• Fixed memory allocation issues affecting Unreal Engine 4 games
• Better anti-cheat compatibility for multiplayer titles

What This Means for Linux Gamers

This update continues Valve's pattern of monthly compatibility improvements through the Proton ecosystem. Notable trends in 10.0-4 include:

1. VR Expansion: 4 of the newly supported titles are VR-exclusive experiences
2. Asian Market Support: Several Chinese and Korean-developed games added
3. Genre Diversity: From tactical shooters to narrative adventures and idle RPGs

Developers can leverage these Proton improvements through Steam Play, while end users simply need to update their Steam client to access the new compatibility features.

Limitations and Future Outlook

While Proton now supports over 90% of the Steam catalog according to ProtonDB ratings, some anti-cheat dependent games and titles using uncommon DRM solutions still face limitations. Valve's ongoing collaboration with Codeweavers and the Wine community suggests more compatibility breakthroughs are imminent, particularly around kernel-level anti-cheat systems.

For those tracking development progress, the Proton GitHub repository remains the best source for real-time updates and experimental builds.