I just finished watching one of the "cube" movies.   If you haven't seen them, people are trapped in a cube shaped roome with 6 seperate exits, some lead to death traps.  they have to keep moving to find an exit.  If a developer can create this type of thing, I believe it will become a best seller, since it is only left to the imagination what kind of scenarios someone can make with this scene.  Please let me know if you will consider making these cubes.   Many things can be added later on, like traps, etc.   
Please watch one of these cube movies, I think there are three.    Thank you.