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.

Whether you're new to Steam Deck or still thinking about buying one, you might be wondering if you can play non-Steam games on the Steam Deck or SteamOS. You can, and one free app is the key.

How to add the Kingdom Hearts games to Steam If you purchased Kingdom Hearts on the Epic Games Store but you miss all of Steam's useful tools, fear not as you can add any game to your library.