It looks good, and it seems like it could be fun, but turning around goes very slowly when using the mouse, so it's hard to play.
Also, I find it hard to read the font.
I also tried to go back to the main menu to see if I could find the controls. I then tried go back into my game again, but you can only start over and the intro video takes a long time and can't be skipped.
So very impressive visuals, and probably a lot of fun after some minor tweaks. I played it on linux.
Oh there's also a folder called 'Project_COEUS_Linux_BurstDebugInformation_DoNotShip' which probably shouldn't be shipped :)