For the second month in a row, Linux has reached a new peak among Steam users. Valve’s November 2025 Hardware & Software Survey shows the open-source operating system claiming 3.20% of the platform’s active player base, up from October’s roughly 3.05%. While Windows still commands the lion’s share at 94.79%, the sustained uptick is prompting game developers to pay closer attention—and raising practical questions for the millions of PC gamers who use Microsoft’s OS.
The numbers behind the milestone
Valve’s monthly survey is an opt-in, anonymous snapshot of the hardware and software its users employ. It isn’t a census of global PC usage, but game studios treat it as the most important gauge of where paying players actually spend their time. Even small percentage changes can translate to millions of customers.
In November, the OS breakdown looked like this:
- Windows: 94.79% (Windows 11 at 65.59%, Windows 10 at 29.06%)
- macOS: 2.02%
- Linux: 3.20%
Within Linux, SteamOS Holo—the distribution that powers the Steam Deck—remained dominant, at 26.4% of Linux clients. Other distributions each held low single-digit shares: Arch Linux, Linux Mint, CachyOS, Bazzite, and Ubuntu all registered. Notably, the Flatpak/Freedesktop SDK runtime appeared as a separate entry and posted the largest month-over-month gain among non-OS categories, indicating that many new Linux users are adopting the easy-to-install Flatpak version of Steam.
What a growing Linux player base means for your game library
The practical impact of Linux’s steady climb depends heavily on the kinds of games you play.
Single-player and indie gamers have the most to gain. Proton, Valve’s compatibility layer based on Wine, now runs a vast number of Windows titles with little to no tinkering. Its underlying translation stacks—DXVK and VKD3D-Proton—have advanced to the point where modern DirectX features, upscaling technologies like FSR4, and shader compilation are handled robustly. Valve’s Deck Verified program further simplifies discovery by flagging which games work smoothly. If your library consists mostly of story-driven adventures, RPGs, or indie hits, chances are high that you could install a gaming-focused Linux distribution and never look back.
Competitive multiplayer fans face a steeper road. Kernel-level anti-cheat systems, used by titles such as Fortnite, Call of Duty, and Destiny 2, remain the single largest barrier. While Valve and anti-cheat vendors like Easy Anti-Cheat and BattlEye have created pathways for Proton support, publishers must explicitly enable it. Many top multiplayer franchises still do not. If you spend your evenings in ranked matches, Windows remains the safer choice—for now.
Developers are taking notice. A measurable Linux audience inside Steam changes the calculus for testing. For a studio releasing a single-player title likely to be played on handhelds, adding a Proton compatibility lane is now a cost-effective decision. Publishers with multiplayer titles should, at minimum, start conversations with their anti-cheat providers about opening that same pathway.
From Steam Deck to your desktop: the engines of growth
Several forces converged to push Linux past the 3% threshold in October and keep it climbing in November.
The Steam Deck effect. Every Deck sold counts as a Linux client. Valve’s handheld has proven that a Linux-based device can deliver a console-like experience for PC games, and its success has created a large, stable base of Linux players. The company’s ongoing work to bring SteamOS to other handhelds will only widen that footprint.
Proton’s maturation. Technical leaps in Proton, DXVK, and VKD3D-Proton have shrunk the performance gap and fixed countless compatibility bugs. VKD3D-Proton 3.0, for example, introduced a rewritten shader compiler and official FSR4 support, directly improving frame rates and image quality on modern GPUs. For many games, the experience is now indistinguishable from native Windows.
Gaming-focused distributions. Distros like Bazzite and CachyOS are purpose-built for gamers, shipping with optimized kernels, graphics drivers, and pre-installed tools like Lutris and Steam. Bazzite, in particular, positions itself as a SteamOS alternative for standard PCs and saw notable growth in November. These turnkey options reduce the technical barrier that once made Linux daunting for newcomers.
The Flatpak advantage. The Steam Flatpak bundle isolates the client from system-level dependencies, making installation a one-click affair and ensuring consistent behavior across distributions. The surge in Flatpak entries in the survey suggests that many users who migrated recently chose this route precisely because it avoided distribution-specific headaches.
Windows 10’s expiration date tipped the scales
Microsoft ended free support for Windows 10 on October 14, 2025. For owners of hardware that doesn’t meet Windows 11’s strict TPM 2.0 and CPU requirements, the choice became stark: pay for Extended Security Updates, buy a new machine, or try an alternative operating system. That timing aligns neatly with October’s Linux bump and November’s follow-through. A portion of users—impossible to quantify exactly but visible in adoption trends for newcomer-friendly distros—chose to explore Linux, and some stuck around long enough to install Steam and fall into the survey.
If you’re tempted to try Linux gaming: a practical checklist
Curious Windows users can test the waters without wiping their main drive. Here’s how to proceed:
- Inventory your must-play titles. Visit ProtonDB.com and Steam’s own Deck Verified page to check how your favorite games perform. Flag any multiplayer titles that rely on anti-cheat; these are the most likely to fail.
- Boot a live USB environment. Distributions like Ubuntu, Fedora, or Bazzite allow you to run a full desktop from a USB stick. Install Steam (preferably via Flatpak) and launch a few games to see if your hardware cooperates. This exposes driver issues without any permanent changes.
- Set up a dual-boot system. If you’re satisfied with the live test, partition your drive and install Linux alongside Windows. Keep Windows around for problematic titles and competitive multiplayer.
- Back up everything. Game saves, configuration files, and personal data should be copied to an external drive or cloud sync. Steam Cloud will handle many saves, but not all.
- Track Proton releases. Valve updates Proton regularly, often flipping previously broken titles to playable. Bookmark the Proton GitHub releases page and the VKD3D-Proton changelog.
The road ahead: what to watch in 2026
Two consecutive months of records turn a curiosity into a trend worth monitoring. The following developments will determine whether Linux becomes a permanent growth story or plateaus:
- Sustained month-over-month gains. If the share continues to climb through the first half of 2026, major publishers will have little choice but to officially support Linux testing.
- Anti-cheat partnerships. Public commitments from Epic Games (for Easy Anti-Cheat), BattlEye, or Riot Games would signal that the multiplayer wall is beginning to crack.
- OEM and driver vendor behavior. AMD’s open-source drivers are already solid; NVIDIA’s continued improvement on Wayland and proprietary driver stability will matter for a huge segment of desktop gamers.
- Native ports and Proton certification. High-profile titles shipping with official Linux builds or Proton-certified status will accelerate the snowball effect.
Linux gaming is no longer an experiment. It’s a functional, increasingly accessible alternative for a growing number of players. For the moment, Windows remains the default for anyone whose gaming life revolves around competitive multiplayer and the latest AAA releases. But for everyone else—especially those on aging hardware or curious about the Steam Deck’s desktop sibling—November’s numbers suggest the moment to explore Linux has never been more practical.