Thank you FriedChitin! Yes, I really struggled to get Godot to respect both occlusion and shadow casting. I could do one or the other, but not both. I also didn't have time to learn raycasting and check if the target could be seen. So it's a little weird to see an alien behind a door waiting for you. :). I'll fix it later in the week.
The art is whatever I could find on OpenGameArt, since I can't draw. I agree it's a mish mash of stuff!
And totally agree on controls. The first thing in going to code tonight is auto-correction on movement so you don't get stuck on walls. I made a mobile version and it's barely playable with a thumb control.
I appreciate your feedback and I'm glad you liked it! Needed another day to polish it, but at least it has a beginning, middle and end.