Dead Island 2 isn't available on Steam yet, no doubt it will be in the future, but fortunately, the Epic Games Store version runs just fine. Huge thanks to Deep Silver for providing us with a game key so we could cover this.
There is an issue regarding FMV's using the standard or Proton Experimental version, but they all work fine if you use GE-Proton7-55 (and may also be ok on lower GE versions as well)
On Medium settings the game looks absolutely gorgeous, however, it struggles to hold more than 40 FPS on Steam Deck
On Low settings, the game can mostly hold 60 FPS, but still has regular dips
While multiplayer is also working perfectly fine on Steam Deck, the FPS does suffer further and sits between 40 and 50 FPS most of the time even on low settings
While FSR 2 can get you a few more Frames, the graininess wasn't worth it in our experience
Our recommended settings for this one are:
Low Screen Space Reflections
V-Sync on in-game
Steam Deck Refresh Rate capped at 40Hz
Motion Blur 0
No matter the settings, this game is pretty power-hungry on the Steam Deck so you are looking at 1.5 hours of battery, but likely less.