Linux's Steam Share Falls From Record High: Inside the 5.33% Peak and the Rise of CachyOS

Windows 11 Strikes Back and Steam Deck Matures

For the first time in months, Windows 11 posted a significant gain, jumping 2.02 percentage points to reach 69.76% of all Steam users in May . This broader Windows ecosystem growth—bringing total Windows share to 93.85%—directly contributed to Linux’s proportional decline . The Windows 10 end-of-life deadline in October 2025 initially drove some users to experiment with Linux, but Microsoft’s aggressive push appears to be pulling some of them back into the Windows fold.

The Steam Deck, running SteamOS Holo, remains the foundational pillar of Linux gaming on Steam. Its massive installed base ensures a permanent floor for Linux that didn't exist before 2022. As the growth rate of new Steam Deck sales naturally slows and the user base matures, wild upward spikes become less likely, but a catastrophic collapse is also off the table. This is why Linux's share, even after a sharp two-month decline, remains comfortably above its year-ago level of 2.69% and still holds a commanding lead over macOS at 2.16% .

CachyOS Rockets to Second Place Among Linux Distros

The most compelling story within the Linux numbers isn't the overall headcount, but a dramatic redistribution of power among distributions. When measuring share within the Linux population on Steam, SteamOS Holo still dominates at 23.34%, but the real news is the meteoric rise of CachyOS .

This Arch-based, gaming-optimized distribution secured 13.36% of the Linux pie, a staggering monthly increase of 4.99 percentage points . This surge displaced long-standing leader Arch Linux to third place at 8.70% . CachyOS has been building momentum for months, capitalizing on its promise of superior gaming performance and optimization out of the box, and its May surge indicates that desktop Linux gaming adoption is diversifying well beyond the Steam Deck.

When looking at share of all Steam users, a parallel contest is happening. Here, Arch Linux holds the top spot at 0.35%, but Linux Mint 22.3 surged to second place at 0.31%, overtaking all Ubuntu variants and signaling a shift toward user-friendly, stable desktop distributions for gaming .

The Real Trend: Volatility on a Gradual Upward Slope

The consensus among analysts is clear: while the specific 5.33% reading was a spike inflated by survey mechanics, the underlying trend for desktop Linux gaming is genuinely upward . The ecosystem is no longer sustained solely by the Steam Deck. The rise of distributions like CachyOS and Bazzite (up 2.54% to 7.28% of Linux users) proves that dedicated desktop Linux gamers are a growing, and increasingly savvy, market segment .

The May 2026 survey should not be read as a defeat, but as a correction that reveals a more complex, and more interesting, truth about Linux gaming’s steady crawl toward the mainstream.