Have you forced it to use Proton or is it the native version you are having issues with?
Hello @Zellagooey, DUSK (519860) is a native linux game and is not using Proton on the Steam Deck by default.
I have forwarded this feedback, but this is also invalid for the Proton project and won't be tracked here.
If you've manually set the per-game override to Proton, then please add this feedback to #198.
Nothing extracted yet.
I redownloaded, viewed integrity of the games files, all it does is crash on my steam deck