I'm looking forward to see where this game goes from here. I've loved the concept from the beginning, and the execution hits on many levels, but I feel like there's a lot of trial-and-error in the current implementation around finding a build that scales properly to confront the next challenge, and the numbers aren't always intuitive. (I also made it through several runs before I discovered that I could upgrade my power plants…)
Really fantastic elements of polish, and a great concept!