The game looks great, unfortunately gives a coredump on Linux (see: https://pastebin.com/PhssrkpW)
I think this can be fixed by changing the FMOD directory from 'FMOD/64/fmodstudio' to './FMOD/64/fmodstudio' on line 22 of Program.cs but I cannot be certain (It's unclear if that's even in your code to be honest).
From screenshots alone this does look incredible, though!