This is a terrific little game. I have a few rules questions after playing my first game.
Does the laboratory work by copying the bottom-attached room to one of the upper rooms immediately? Does it copy what is built on one of the sides to the other immediately? Is the clone just a thing that can at any time clone one of the attached parts to anywhere on the tower?
For the observatory, does it count every room, every square or just every unused symbol? For example, do stairwells count as rooms?