One of the peculiar things in Timberborn is the verticality. Your cities can actually grow up as some structures allow others to be built on top, and so on. Of course, if you want to build a beaver apartment block, you also need to research and build stairs and platforms for them to reach the 2nd floor domiciles. And some buildings just won't work with the whole stacking things. Verticality is also important for the water mechanics, but I didn't play with them much.
