Overview

• Valve has introduced SteamOS compatibility ratings to guide users on game functionality for third-party handheld devices.
• The ratings, based on Steam Deck verification data, assess game functionality, launcher integration, and anti-cheat support.
• Over 18,000 games are marked as SteamOS Compatible at launch, with ratings displayed alongside existing Steam Deck verification on store pages.
• The Lenovo Legion Go S becomes the first non-Steam Deck handheld to officially support SteamOS, with potential for more devices in the future.
• Valve emphasizes handhelds as a priority for SteamOS expansion, though no formal roadmap exists for broader platform adoption.