


It would only let me set any resolution lower than native one for my display. I set a resolution immediately lower than native, then I quit the game and opened configuration file at ~/.var/app/com.valvesoftware.Steam/.config/unity3d/Tensori/POOLS/prefs. I found these parameters among other settings:
<pref name="Screenmanager Resolution Width" type="int">3200</pref>
<pref name="Screenmanager Resolution Height" type="int">2048</pref>
<pref name="resolutionIndex" type="int">48</pref>
I modified them accordingly for native resolution of 3840x2160 for my display:
<pref name="Screenmanager Resolution Width" type="int">3840</pref>
<pref name="Screenmanager Resolution Height" type="int">2160</pref>
<pref name="resolutionIndex" type="int">49</pref>

framerate drops are common when in water, there are in-game settings to disable some water effects and make the game run faster
Overall the game runs extremely well. The game's default graphics are too heavy for the Steam Deck but the developer has presets to fix this. I personally use the "Steam Deck Performance" preset since I prefer the higher framerate over the quality.

FSR set to 3 on Deck, not in game, resolution dropped as well in game

DRI_PRIME=1 %command%
The only bug I encountered was my screen occasionally fading to black when changing scenes and not displaying again. Minimizing and re-opening the window immediately fixed that. Easy to work around.he launch option was simply to make the game run exclusively on my dGPU, and will not be needed in most cases.
Works out of the box, no problems

Worked out of the box
Played the entire game, no issues.

Performance on the deck is pretty bad. You have to lower resolution and graphics settings quite far to even get a stable 40 FPS.
Not recommended unless you enjoy interactive slide shows.

Set FSR to 0.85
Lighting artifacts as a result of the Unity global illumination use in this game
Default configuration got 30-45fps out of the box on Steam Deck. You can improve this by either using FSR or decreasing the lighting quality in settings.
gamemoderun %command%