It contains several simple puzzles and their solutions, and it will give you a good idea of how Infocom's interactive fiction works. The map represents the terrain in the sample transcript as you might have drawn it. This large, cylindrical area houses the controls for the fusion drive of the ship. The drive itself lies below the deck you're standing on. A hatchway, closed, leads down toward the drive.
Open doorways lie to port and starboard, and a ladder leads up through an opening in the deck above.
This is a tiny space for storing tools and supplies. The food dispenser is set into the wall. There is a Frobizzmus Wrench here. A tray of yummy-looking lunch food pops out of the dispenser. The food dispenser is attached to the wall.