The Steam Deck runs SteamOS, which allows games from one's Steam Library to be run.

Determining the best Proton version to use may be needed for optimal performance or stability.

To use the Windows version select a Proton version.

To use the Linux version select Steam Runtime.

In the Compatibility tab check the Force Proton.

Select the game in question and press ᴍᴇɴᴜ.

If the game does not support cross-platform cloud data, a workaround is to force the same version to run on the Steam Deck as the second PC:

PCGamingWiki's List of games with high probability of working well on Steam Deck.

Steam Deck Discord - the most popular third party Discord server.

GamingOnLinux - Linux gaming and Steam Deck news.

SteamDB - SteamDB's list of Steam Deck Verified games.

ProtonDB - Collection of user reports on how games run under Proton.

Steam Deck Verified - official resource for checking compatibility status of Steam games.

Steam Deck discussion forum - official Steam Deck forum, which includes Bug Report and Feature Request sub-forums.Steam Deck News Hub - official Steam Deck news.

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