The genre of "rogue-lite city builder" seemed like an oxymoron to me when I first heard it, but this game does a good job of capitolizing on the early stages of a city-builder and then progressing once you get to a point that it would otherwise start getting stale. The way the game forces you to addapt to unique circumstances in each city with the random parts you are able to cobble together into a functioning outpost keeps you needing to think through decisions in tactical and strategic terms each time.