Steam Deck: Install Diablo IV Beta (Internally, Externally and as a Shared Battle.net game)

NOTE: If you’re here about Diablo 4 release? Please use GE Proton 8-3 instead of the recommended one.

With Diablo IV open beta coming, I figured it was time to put together a video showing how to install this.

A special version of Proton is needed and you may not want to install it in the same Battle.net install you already have. I’ll show you how to install this both internally and on an external drive.

For those that want to “dare to share”, I’ll cover how to install D4 beta as its own Steam entry but shares the Battle.net app with your other game(s).

PATHS MENTIONED
home/deck/.local/share/Steam/steamapps/compatdata
(note: You must have hidden files shown in Dolphin)

CHAPTER JUMPS
00:00 – Intro
00:14 – Bumper
00:24 – ProtonUp-QT + Special Proton Install
01:13 – Install Battle.net Launcher
03:00 – Installing ProtonTricks
03:16 – Battle.net Configuration
04:30 – Installing Diablo IV (Internal)
04:55 – Installing Diablo IV (Internal/Non-Prefix)
05:35 – Installing Diablo IV (External)
06:30 – Updating the Steam Launcher
08:05 – Testing the Stand Alone D4 Launcher
09:40 – End of Stand Alone Installer Tutorial
09:41 – Adding D4 to Existing Battle.net w/own launcher
10:36 – Symlink New to Old
12:02 – Updating the Steam Launcher
14:05 – Upgrading/Testing Existing Launcher
15:07 – Testing D4 (Shared)
16:15 – Closing Discussion