Designing and building vertically, not just horizontally, adding a complete three-dimensional aspect to the game.
- All buildings flagged as positional options for placement.
- Ground (Bottom) Level Buildings: only available to be built on the ground such as early housing, early farms, and dense/heavy structures (such as flywheels).
- Open-Air (Top) Level Buildings: require access to open air for built-in venting (Distillation and Exhaust Scrubber) and cannot be built under another building (or no building built on top of it).
- Mid Level Buildings: multi-structure designs requiring building to be built above/below in order to operate.
- Later game buildings more vertically dynamic: vertical farms, addons/enhancements, compact living. Later have fewer limitations on where can be placed vertically (bottom, top, middle).
- Building Addons: Enhancements added to buildings (basement boiler, roof solar, roof wind power, rain catch, vertical supports)
- Super-structure building! Hive City!
