This is a city builder, with the twist that you're building on a steep mountain. From what I saw in the demo, it's already highly polished, and the limitations of space and altitude come together nicely. Houses work similarly to Anno; there are several classes of citizens, and they all have desires that need to be met to upgrade their houses. It looks like in the full game, much of the gameplay will revolve around causing, avoiding and mitigating avalanches. Interestingly, buildings had no cost in the demo - so every time you needed more of something you just plonked down another building. I'm not sure if that's going to be updated at release or if it's part of the design.