Valve has recently announced a new program aimed at verifying game compatibility on the Steam Deck with a simple four-category classification system. Valve is reviewing the entire Steam library to see how each title performs in four key areas on the Steam Deck including input, display, seamlessness, and system support. Games need to feature full controller support and automatically bring up the on-screen keyboard to fulfill the input requirement along with supporting the Steam Decks native resolution of 1280x800 or 1280x720. They will also need to work correctly with Proton including anti-cheat if no native Linux version is available along without displaying any warning messages.

Valve will mark games that fail some sections of these checks as playable meaning that the user may need to manually select a community-created controller configuration or use the touchscreen to navigate the launcher. Games that cannot run will be marked as unsupported while all other games will be classified as unknown meaning that Valve has yet to test the title on the Steam Deck. These new compatibility labels will be featured prominently throughout the Steam store on Steam Deck with detailed information about individual checks available. Valve will continuously update these ratings as developers launch updates for their games and they hope to have the feature live before deliveries of the Steam Deck begin.Explanation Video