Thanks! I made it as far as the splash screen and the photosensitivity warning this time, but after that I got a blank screen, sadly. (It's probably something on my end, though. Such are the travails of the Linux gamer. Hopefully sysyme has better luck.)
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It's not on your end. It just locks up on a black screen after the photosensitivity splash screen fades out, hogging up some 85% of my CPU (Ryzen 3700x) until I kill the process. I did leave it running for a couple of minutes in case it was just precompiling some complex shaders or something, but no luck. Couldn't get any useful debug output out of it either. I guess I'm giving up for now.
The game looks like something I might enjoy, so I'll definitely keep an eye out for updates. Let me know if I can help with testing.