The Ben 10 Fan Fiction Multiverse is a name given to the multiple universes of Ben 10 Fan Fiction. Most universes derive from Ben 10: Alien Force or Ben 10: Ultimate Alien. Others are User Series or Aliens who have the Omnitrix or their own Trix. Some are just Comedy, like Plumbers, Ben 10: Stupidity Force, or Omni-World. This page is for the list of Series and where they belong in the B10FF Multiverse.
The Following is the title of where they derive from.
Alien Wielding Stream
Alternate Reality Stream
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