The More I played the more fun it got! I got quite hooked for a minute there hahah and what an interesting ending (not going to spoil it for those that haven't played, but I liked it). The upgrades made traversing the harsh landscape very worth it. and the enemies being able to bore through walls is very cool. I could definitely see this idea expanded, it's got plenty of room to grow. I never actually found myself using the minimap  much, it was a bit difficult to decipher where I was on it. Anyway very good stuff :D