I played a second time, this time really looking to min/max the efficiency. Once I realized the rule for building spawn, the endgame becomes keeping areas clear enough to spawn houses in with the limited 8 destroys. If there was a better way to know how the score is added round after round, I'd know if it was "worth it" to control spawns at the start with road pieces. I'm tempted to try this to get a "perfect" town and see what the max score is. :D Overall its actually a very simple but interesting puzzle concept.