Pretty cool rts / tower defense hybrid. It would be nice if you could walk through your allies though, they tend to block your path at night. Nice job!
I didn't really have any time to address the problems when the robot population gets too high, so they can block off a lot of entry and exit points. If I work on this later, I will do something about this. Maybe send all the robots to the nearest building before they shut down for the night?
