Just picked up the game, and have only completed the first level. But I like it so far.
I was wondering, based on what I can see from the menu so far, if there is an endless mode. Perhaps the final level?
If not, it would be nice to see added. Then, it would also be good to be able to save progress in endless, so you could return to a game in progress later.
Cool game, though. I like resource management games like this.