The Steam Deck is a PC, after all, and you can expand your library to include non-Steam games from other digital platforms.

Adding Non-Steam Games to your Steam Deck Library Step 1: On your Steam Deck’s Desktop mode or Desktop Environment, Launch Steam application. Step 2: Go to the Games tab and select add non steam ...

While you can launch games not purchased from Steam in its desktop app, games from the Microsoft Store or PC Game Pass need a little help to work.

To get started, open Steam in Desktop mode (there should be a shortcut on your desktop) then use the menu bar at the top of the window to select Games > Add a Non-Steam Game to My Library.

To add the option to launch the game using the default Steam Deck view, select 'Games' from the Desktop Mode's top bar and select "Add non-Steam Game to My Library." ...

If Steam then asks you to "add a non-Steam game," choose Browse, then select the Battle.net installer Open Steam while still in Desktop Mode. You should see Battle.net in the Library page.

Beyond the basics of running your Steam library on the go, the Steam Deck is a beast at emulation and game streaming thanks to EmuDeck.