Grand Theft Auto V was one of the top ten most played games on Valve’s Steam Deck handheld this past week. It’s been in the top twenty for at least two years. But as of today, Valve now lists the game as “unsupported” — because developer Rockstar mysteriously broke compatibility with Valve’s handheld for its online modes.

GTA Online was recently updated with new anti-cheat software, and some players think this move could be a sign that GTA 5's PC port may be in for a serious upgrade. If you're a little confused regarding the connection between GTA Online's new BattleEye anti-cheat software and GTA 5's graphics on PC,

Recently, we had the news that Rockstar updated Grand Theft Auto V to include BattlEye anti-cheat, and they have not enabled the Linux / Proton support that BattlEye offers. With that change, the online mode is now broken for Linux / Steam Deck.

GTA V has consistently ranked among the top 20 most-played games on the Steam Deck for at least two years, and it even remained in the

GTA Online's new anti-cheat has at least temporarily ridded servers of invincible modders, but has also locked Steam Deck and Linux players out.

Thanks to a recent update, Grand Theft Auto 5 and Grand Theft Auto Online can't be played on the Steam Deck.The Latest Tech News, Delivered to Your Inbox

You may have noticed that Grand Theft Auto V is no longer verified on Steam Deck. That's seemingly because of the BattlEye new anti-cheat software for GTA Online, which rolled out earlier this week. As Rockstar explains in its official FAQ,