Valve's new Steam Machine verification system has begun rolling out, but it's notably silent on dozens of titles that are too taxing for the Steam Deck. These games, which can't handle the Steam Deck's 1200x800, 30 fps standard, are listed as 'Unsupported' on the Steam Store.
The Steam Machine compatibility for many games is straightforward: if a game is verified on Steam Deck, it's likely verified on Steam Machine, and games that don't work with SteamOS won't work on Steam Machine.
The absence of Steam Machine Verified badges for these problematic games leaves a gap in compatibility information, making it difficult for users to determine which games will run smoothly on the new hardware.
