Valve Trials SteamOS 3.7.0 Beta with Expanded Third-Party Device Support

Valve has taken a bold step toward unifying its gaming ecosystem with the beta release of SteamOS 3.7.0, codenamed “Pi Day.” The standout feature? Experimental support for third-party handheld devices, marking the first time SteamOS can officially run on hardware outside the Steam Deck lineup. While the Lenovo Legion Go S is currently the only confirmed compatible device, this signals the beginning of a broader push to expand SteamOS beyond Valve’s own hardware.

The update packs significant upgrades:

Other improvements include better stability for Steam Deck docks connected to VRR-compatible monitors (variable refresh rate) and the addition of IPv6 Privacy Extensions for stronger data protection. Memory management during low-resource scenarios has also been refined. The beta is currently exclusive to the Steam Deck Preview channel (Settings → System → Update Channel).

Insiders hint at a stable release arriving in April, with more third-party handhelds expected to join the compatibility list. By opening SteamOS to rival devices, Valve isn’t just elevating the Steam Deck—it’s challenging the entire PC gaming market with a unified, mobile-first operating system.