Prison Dimension

The Prison Dimension is Exactly What It Says on the Tin: Another Dimension that is largely used for the sole purpose of imprisoning someone or something.

Has shades of Pocket Dimension and Tailor-Made Prison. See also Phantom Zone.

Examples of this trope include:

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     Comic Books 

     Live Action TV 
  • Angel has a few examples:
    • A dimension where Ax-Crazy Straw Mysogynist Billy Blim was trapped until Angel was blackmailed by Wolfram & Hart into breaking him out.
    • A "holding dimension" described as the Senior Partners' version of a penalty box that resembles a US suburban town, in which inmates are stripped of their memories, spend time with a fake family, and then have their hearts cut out by a demon in a vicious cycle.
  • Smallville has its own twist on the Phantom Zone, in which it is typically only the very worst criminals (such as General Zod) who are reduced to phantoms.

     Video Games 

     Western Animation 
  • Ben 10 has the Null Void, which was originally a penal colony created by the Galvan to house their own prisoners, but soon the rest of the universe, including the Plumbers, found out and used it as well.