Linux gaming performance is improving as Windows-specific APIs are being implemented natively in the Linux kernel. NTSYNC, a new kernel driver, provides a native implementation of Windows synchronization primitives that games rely on. While the headline 40-200% FPS gains were measured against unmodified Wine (which most gamers don't use), the real benefit over the existing fsync workaround is more modest but still meaningful for struggling titles. Valve shipped NTSYNC in stable SteamOS in March 2026 despite fsync being 'fast enough,' signaling a commitment to proper kernel-level solutions over workarounds. This follows a broader pattern of Linux gaining Windows-compatible features driven by Valve, CodeWeavers, and community contributors, coinciding with Linux crossing 5% of Steam's user base for the first time.
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What NTSYNC actually isNTSYNC is part of a growing patternThese aren't magical performance gainsValve adopted it anywaySort: