I love the theme! Everything was really well implemented. I think there was a slight issue where I accidentally placed buildings underneath the UI button I was trying to click, and the scrolling with WASD was a little slow, but otherwise really polished!
I got stuck and ran out of resources. I guess I'm a poor planner and humanity is doomed. At first I thought each build placement would affect a resource gather rate for all future turns, and then I realized it just gives you a fixed amount that one turn. I think that makes it feel more like a puzzle game where you have to think ahead, instead of a more casual clicker game where you just continuously grow without much trouble.
Great work!