Hello dear users!
As we don't have the hand on which Proton the game will boot on Steam Deck, here is tuto on how to set it up properly your Proton so you can enjoy the game.
Select Crushed in Time from the Steam Deck library carousel
Navigate to the settings cogwheel on the right side of the game page and select it
Select Properties
Go in Compatibility section and check "Force the use of a specific Steam Play compability tool
Click the dropdown button and select Proton 9
Return to your game page and check for updates if it doesn't happen automatically
Note that for now we have an issue with touchscreen not working with Proton 9 enabled. We are investigating this issue.
So far we know that the game will crash with these Proton set up:
Proton Experimental
Proton 11