I love the idea of Space Invaders but with a lot more depth, and this game seems very deep! I enjoyed managing resources and getting new weapons, but I did find the geoscreen a bit complicated and unexplained. I wasn't really sure which resources did what, which buildings I was supposed to build, and what the goal was exactly aside from farming resources.
I also felt like there were too many popups with a lot of text every few seconds in the geoscreen which made things even more complicated. Aside from that, nice work! Really ambitious game to make in such a short time.