


PROTON_USE_WINED3D=1 %command%
did a lot of digging for potential causes of the audio problems, using proton-ge 6-21 fixes them, and disabling dxvk fixes input, do there you go, RCT3 at long last playable on the go!

Proton Experimental
Changing left trackpad button
Keyboard remapping not detected
Tried to rebind keyboard commands to Steam Deck ones in controller settings (Such as the Shift key with the rear buttons and left touch pad for example) and they refuse to work in either modes, making features like elevating object placements impossible. Music is also completely messed up, they need to be converted and replaced with mp4's then rdnamed back to wma to fix those. UI scale options are non-existant and in-game options also refuse to be changed as few as there are. No performance issues from what I was able tell but it could still occasionally crash or freeze up.
Game works good now. Would recommend emulating the Switch Version instead of playing the Steam version, but the Steam Version works great.
converted all the wma files in the music folder to mp3 then renamed them to wma files to fix the music issue.
converted all the wma files in the music folder to mp3 then renamed them to wma files to fix the music issue.
Inputs mapped to Keyboard do not work. Inputs mapped to Mouse work fine though.
Especially the music sounds weird/corrupted always, game sounds seem to be mostly ok
Some stuttering when moving around in a level, could also be shader-compilation related stuttering or stuttering from geometry loading in
Audio issues happens also when using Proton Experimental. Game runs fine for the rest apart from some heavy stutters sometimes when moving around the map.

The music from both the menu as well as the logo's is distored (likely due to the lack of wma support). Howerver you start a game it flickers between the game and a test screen until the steam deck just restarts. Same happens to the original platinum edition (no longer available for purchase)