Yesterday I spent all day playing Timberborn. Oops.
It's a very cool game, anyway. You control a settlement of beavers, striving to survive in a volatile environment. You grow trees for building supplies, and you grow crops to keep fed. You pump water out of the river and stockpile it for the dry seasons. You build dams to keep your land hydrated.
Buildings aren't restricted to ground level - many are marked "solid", which means that other buildings can be built on top of them. In my game I have a tower four or five storeys tall, where the beavers live and their food is stored. It takes up very little horizontal space, meaning more room for growing crops (or other buildings).
Timberborn is one of those rare "early access" games that has felt complete right from release, and is also regularly updated. There's a lot of stuff going on that I haven't touched yet - all of my great successful cities were made in the release version, so I haven't experienced the beaver mechs, or the nuances of the different crops and trees. I think I was too scared to use dynamite back then when it was just made of paper, but now you need badwater. Terrible new mechanic, that one, very scary.
I'm a big fan of how you can create new "districts" in the far reaches of your settlement, basically self-sufficient colonies with their own populations and stockpiles. You can have beavers migrate from one district to another, and you can have them trade with each other. I think, in the release version there was a maximum distance a district could stretch before you had to build another one, but I don't think that's the case anymore. It just takes your guys longer and longer to walk back and forth. :)
OK that's enough thoughts on Timberborn for now!