This is largely a treasure hunt style game where you must determine where to take your current item, though there are also more complicated puzzles. It takes place in a sci-fi research facility with teleportation rooms and invisibility labs and amusing NPCs.
My only complaint is that the navigation starts to get tedious after a while as the map keeps getting larger. My ideas for dealing with this would be: include a "go to" command; include a graphical interactive map in the game; use a smaller map and reuse the rooms more.