However you can also add it to Steam, to launch it directly there. That's it, now it will run via the AppImage and detect the content properly and work.

Move the AppImage into the folder where Diablo is installed.Right click -> Properties -> Permissions -> Tick the 'Is executable' box. Next up, download the AppImage from the devilutionX GitHub releases page.Sign into GOG with Heroic and download Diablo.

You can get it easily as a Flatpak from Flathub, and on the Steam Deck from the Discover app. First of all, you're going to want to install the Heroic Games Launcher as that makes managing games from GOG really easy.Many advanced features like high FPS support, more resolution support, skippable movies, quick casting, better multiplayer, UI improvements, better saved games and the list goes on.

Why would you want to use devilutionX? Well, it's constantly updated to improve playing Diablo for modern platforms! It just keeps on getting better. Here's how to get it working on Steam Deck (and Linux desktop!). Do you want to play the classic Diablo RPG? Well, not only does GOG have it and the Hellfire expansion but the Native Linux devilutionX game engine can make it even better.

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