This world consists of three levels. The Upper, The Middle and The Lower. It is artificially created so that it forms almost a pyramid. There is naturally, or unnaturally depending on how you look at it, less space the further you rise.

There are worlds where the rich and the poor can walk past each other on the streets. Whereas, this world called Mastaba by its architects, segregates the rich, the average and the poor. If you are discovered to be in the wrong level, you are an outlaw and immediately are sent to the Lower. Any possessions are auctioned based on the items value or thrown in the Lower if deemed useless.

The purpose in life for the habitants of Mastaba is to earn and rise levels, usually by exploiting the level below. However, for the habitants of the Lower, scavenging is the most common occupation.

In some ways, Mastaba is just like any society, but in other ways, living here is either exhilarating or it is like living in hell.