Unless something changes, Steam Deck won't run Destiny, Apex, PUBG or Siege

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The promise of Valve's new Steam Deck (opens in new tab) is to let you play your Steam catalogue on the go. But thanks to the particular makeup of the new handheld PC's OS, there may be some major caveats to that promise.

As a Linux-based system, the Deck's SteamOS has a somewhat limited selection of compatible games. To combat this, Valve developed a feature called Proton, which utilises a fork of the Wine compatibility layer, which is designed to help run native Windows titles on the OS—and while this does expand SteamOS's list of supported games considerably, there are some notable exceptions. 

According to ProtonDB (opens in new tab), almost half of Steam's 10 most popular games—Destiny 2, Apex Legends, PUBG and Rainbow Six Siege—will not work on SteamOS. The culprit, it seems, is anti-cheat software. In most cases games will start up, but their anti-cheat systems won't, leaving you unable to log into multiplayer servers.

Valve does note (opens in new tab) that the Steam Deck will come with a new version of SteamOS, and is currently "improving Proton's game compatibility and support for anti-cheat solutions by working directly with the vendors". In short, developers won't have to go through hoops to get their games working on SteamOS, but it'd help if their anti-cheat providers did. 

We've reached out to Valve for comment on how exactly it's working to improve SteamOS compatibility.

That's really the crux of it. Despite Switch comparisons (opens in new tab), the Steam Deck is still a PC. And as a straight-up PC, Valve is also happy to let you tinker with the machine at will, meaning you're free cut to the chase by installing Windows itself.

Unfortunately, PC gaming has always meant that sometimes games just won't work as expected. That's no less true for the Steam Deck than it was any desktop tower you've ever owned.

Natalie Clayton
Features Producer

20 years ago, Nat played Jet Set Radio Future for the first time, and she's not stopped thinking about games since. Joining PC Gamer in 2020, she comes from three years of freelance reporting at Rock Paper Shotgun, Waypoint, VG247 and more. Embedded in the European indie scene and a part-time game developer herself, Nat is always looking for a new curiosity to scream about—whether it's the next best indie darling, or simply someone modding a Scotmid into Black Mesa. She also unofficially appears in Apex Legends under the pseudonym Horizon.