How to Play Diablo 3 on Steam Deck
Playing Diablo 3 on your Steam Deck is actually simpler than you might think, thanks to the magic of Proton, Steam's compatibility layer for Linux. First, you'll need to add Diablo 3 as a non-Steam game to your Steam library on your PC. Open Steam, go to the bottom-left corner, click 'ADD A GAME,' then 'Add a Non-Steam Game.' Browse for the Diablo 3 launcher or executable and add it. Then, make sure your Steam Deck is set to use Proton for non-Steam games. Voila! Boot up your Steam Deck, find Diablo 3 in your library, and get ready to slay some demons on the go!
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Nah, you don't need all that fuss. Just get a Windows partition on your Steam Deck and install Diablo 3 like it's a regular PC. Easy peasy.
Tried playing D3 on the Deck, works smoothly with Proton. Make sure your Proton is up to date for the best experience. The controls are surprisingly intuitive once you get used to it!
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