A simple little stateroom with basic facilities. The idea is that the whole thing makes a 3x3x3m cube, made up of 1x1x1m interchangeable, standardised modules. Useful for spaceships or space stations or anywhere else you want to assign volume rather than land area to different functions.
Or for drawing out on graph paper for a tabletop game I guess.

Not super sophisticated, but it was fun to design still :3

Probably from the same place as the 3x2 room I did a while back? http://www.furaffinity.net/view/9120877/