


FPS drop from 30 (cap) to 20-25 in large areas (Swamp level)
I have not experienced any significant battery drain or temperature increase.

The game did not recognize the Deck's screen definition at first, see below.
The game runs well, very well even. But following the splash screens (which show properly), the menu would appear in a small black box on the top left corner of my screen. After changing Proton layers several times, nothing seemed to fix it. I instead used the touchscreen controls to go into the settings and they were showing no resolution at all, which seems to be a bug. After setting it to the proper resolution, the game displayed correctly and remembered my setting every subsequent launch. Otherwise, it's a good experience with some occasional (but unpredictable) stutter. It advises capping it at 40 or 45 fps.

Plays great but expect some slowdowns and to have very little battery life if you play it without changing settings
Kept the Deck plugged in. Others have suggested to lower graphics settings.
Noticable slowdowns in certain sections of the game.
The game plays well but it's also unoptimized with some slowdowns affecting gameplay but not to any extreme extent. Also the battery life for this game is really bad and I had to have the Deck plugged in to play or else I would never be able to finish a level.

-dx11
Gamescope: Framelimit 45fps/90hz, FSR, Sharpness 3
Game settings: 720p, windowed, no fps cap, no vsync, med shadow, med post processing, HDR on

-d3d11
HDR is broken in DX12 mode. Add the launch option "-d3d11" to force the game to run in DX11 (or use the DirectX Launcher to select manually on every launch (it will not remember your selection))
Seems to run well on Steam Deck with Shadow Quality set to Low (didn't make any other changes other than enabling HDR). Lock it to 45 fps on the OLED or 40 fps on LCD as it won't quite lock to 60 fps with these settings.

Be sure to change resolution to match SD refresh on first boot.

Works perfectly at 60fps when undocked, but when docked to a TV I got significantly lower FPS regardless of settings.
set refresh rate and fps to 40 set shadows to low
Only towards the end of the game.
Slowdown in some areas.
Manually change graphics, the game have heave FPS drops in some areas for no apparent reason.
Lower graphic settings and resolution.
FPS drops.
I've lowered some graphics settings to be able to hit a higher fps
By default, the fps drops to 20-30 in some areas.
Even though I've beaten all bosses 2 times, I still haven't got "The Bigger They Are..." achievement. Maybe there's something particular I should be doing, but even after I've watched a walkthrough I couldn't get it.
The game runs fine out of the box, but I highly recommend you set the frame rate of the deck to 30-40 in order to prevent sudden drops of fps. Otherwise, if you want to keep a constant 60 fps, I would suggest you drop the Shadow Quality to Low. That's the only setting I've changed and the game ran smoothly overall.
Depending on your graphic settings, the game might not be able to hit 60fps
(It runs perfectly fine at 30 with RTX on though)