Really nice game, but I could never get pop. growth over 30. Ended up having everything maxed out with a pop of aprox 300. Maybe it would be possible to ad a color-overlay in town mode, to weather or not people would be interested in moving in to an area?
I liked it. It's a little too easy for my taste and it still needs more turrents, more different kinds of enemies, a win salute and a grafic change in the opgraded turrents. But keep at it, find a twist and a good story then it will end up very good.
<3