As of now, there are over 8,000 games that are either Playable or Verified on the Steam Deck[1]. Considering that the Steam catalog has just over 50,000 games[2], this means that approximately 16% of all games on Steam are currently compatible with the Steam Deck. It’s important to note that this number is constantly increasing as Valve continues to test and verify more games for the platform.

In terms of the top 100 most played games on Steam, 75.2% of them are either Playable or Verified on the Steam Deck[3]. This indicates that a significant portion of popular games is compatible with the device, providing a wide variety of gaming options for Steam Deck users.

Keep in mind that even some Unsupported games might work on the Steam Deck, as the numbers only include those that have been through Valve’s formal Deck Verified system[1]. You can still install and attempt to play any game you want, but compatibility and performance may vary.

Citations:

[1] https://www.gamingonlinux.com/2023/03/steam-deck-hits-over-8000-games-playable/

[2] https://www.pcgamer.com/nearly-10-of-all-games-on-steam-are-now-steam-deck-compatible/

[3] https://boilingsteam.com/75-of-the-top-100-most-played-games-on-steam-are-playable-verified-on-the-steam-deck/