It's official: Valve's SteamOS will be available on more platforms soon, and the first handheld PC gaming device to adopt the operating system will be the new Lenovo Legion Go S. At CES 2025, it was revealed that the slim Lenovo unit will run on the Linux-based OS--, the same one used on Valve's Steam Deck.

Valve is making a notable shift with its portable gaming strategy as Lenovo debuted a new edition of its Legion Go

Lenovo has finally announced a new line of Legion Go handheld PCs, with one that will come installed with SteamOS out of the box. The new model is called the Legion Go S, and it's the world's first handheld PC from a third-party manufacturer using Valve's operating system.