I love management and defence games. My only issue was that the UI was hard to figure out at first and in order to hit the asteroids consistently you need to be zoomed out which makes the the buildings hard to click when you reload or recharge shields. Also I found the civil building to not be worth it when they generate so little per round where military were better to have more ammo stockpiled or maybe its just my play style LOL
Enjoyed the game, challenging but fun to manage your resources!