Multiverse

The Multiverse, or the fifth dimension, is an interdimensional space in no particular time that stretches on infinitely. There are an infinite number of wormholes to every alternate dimension here, each seperated from one another. Subsequently, if anyone is lucky enough to travel to the ficth dimensional space (see below), it won't be long before they implode because objects made of atoms do not belong in the fifth dimension.

Known universes

 * Human Dimension
 * Animal Dimension
 * Spirit Dimension

Access to other universes
Time travel needs to work to access the Multiverse. One must time travel, preferably in a time machine, to before the Big Bang. There is a 5% chance that the time traveler will actually survive the act of travelling before time. If they do make it, they will be in the fifth dimension. By containing the atmosphere in an enclosed space, the time travelor must get the enclosed atmosphere inside the time machine's energy hole. At some after this, any device/portal can be built, and must be plugged into the time machine so that the fifth dimension's atmosphere can be put inside the device/portal built, allowing said device/portal to have access to travel to a parallel universe. There is no known way to travel to a certain universe; you are sent to a random, preselected universe when you travel through the device with the fifth dimension's atmosphere.

Trivia

 * Something inside a time machine in the fifth dimension will still implode.