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.

An apparent dispute between Rockstar and Valve has left Grand Theft Auto 5 to be listed as unsupported by Steam Deck.

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,

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

The reason for Valve listing Grand Theft Auto V (GTA V) as unsupported is that the developer, Rockstar, has reportedly disrupted compatibility with Valve's handheld for its online modes

The addition of BattlEye anti-cheat to GTA has made the game incompatible with the Steam Deck. Steam Deck players can no longer access the GTA Online portion of the game. Rockstar is blaming Valve, despite other BattlEye games being compatible with the platform.