Omniverse

The Omniverse is the total sum of all spacetime, comprised of all realities and all (parallel and branched) versions of history, known as dimensions, timelines or universes. The number of such realities are infinite.
==History==
===Ben 10===
In Crossover Nexus, Ben Tennyson was summoned to the Nexus Realm by Strike. He manages to get away from Strike (who wants to X him), and runs around the city avoiding him alongside Garnet. They soon find and save another hero, K.O. Now traveling as a trio, they find Raven, who informs them of the place they've travelled to. The four make their way to Strike's lair and team up to defeat him, with Ben being the one to deal the final punch, riding on K.O.'s powerfist and transforming into multiple Cartoon Network heroes. They fix the city Strike was destroying and Raven creates a portal for them to all go home.
In Alien X-Tinction, Alien X travels the Omniverse, stealing the Omnitrices from every Ben Tennyson he can find. He visits Maximilian Tennyson's dimension and kills his Ben. This causes Maximilian to follow after him in an effort to get his revenge and stop his rampage. In one dimension, where Gwen never attended the summer road trip, Alien X petrifies Max and mangles Ben's arm after taking his Omnitrix; Maximilian arrives too late and has to repair the damage. While travelling in between dimensions in a modified Rustbucket, Maximillian is ambushed by Phase Parasites. He is forced to abandon ship, teleporting to one last dimension before the ship explodes.
He lands in Dimension 27998.3, in front of the Ben, Gwen, and Max; currently hiding from Alien X. He butts heads with this Ben about the severity of Alien X's power and Ben's inability to hold him back. Alien X soon finds them and zones in on Ben, whittling him down during a long fight until he's able to take his Omnitrix. As the four think of what to do next, a different Ben visits them, who claims to also have been following after Alien X. He has the benefit of using a small handheld device to open portals to traverse the Omniverse. They all form a plan to use this new Ben's Omnitrix to lure Alien X back and fight him, while Maximillian uses his portal device to find another Ben to help. The plan mostly falls apart when he gets back with the third Ben, but having a second Omnitrix-wielder helps even things out. As they fight, Gwen gives Ben the idea to keep expanding this family of alternate Bens. Ben grabs the portal device and takes Maximillian through it; they travel to multiple dimensions that haven't been invaded by Alien X yet and convince their Omnitrix-wielder to come help. Just as Alien X was going to win, they return with two more Bens and a Gwen.
They make their final stand against Alien X, learning to work together and helping each other. Alien X is finally defeated and reverts to his human form, a version of Ben Tennyson himself. He explains he comes from a dimension where his Gwen and Max perished. Maximillian offers him the chance to have a new family; Ben X declines and says he would rather go back to the Null Void, but Maximilian promises him that they'll be spending time together once his sentence ends. Maximilian opens an exit portal and thanks Team Tennyson for reminding him that everyone needs a family. All the alternate Bens and Gwen celebrate saving the Omniverse and say goodbye as they exit. 
==Canon Timelines/Dimensions==
*Dimension 27998.3 - The timeline within which the Ben 10 series takes place. It can also be considered a shared dimension with a younger version of Rex from Generator Rex.
*Reboot Future Timeline - An alternate future 30 years from the reboot.
*Dimension 12041.5 - A dimension where Gwen never went on the summer road trip with Ben and Max.
*Maximilian's Dimension - A dimension where Ben is killed by an invading Alien X; it is the home dimension of Maximilian Tennyson.
*Ben X's Dimension - A dimension where Gwen and Max were killed by Vilgax and Ben remained trapped as Alien X after shattering his Omnitrix, which also resulted in an explosion that vanquished Vilgax, thereby avenging his family.
*Null Void - An alternate dimension which is the space between dimensions.
===Unseen===
*Alien Force Dimension - A possible future of Ben Prime based off Ben 10: Alien Force; it is the home dimension of Alien Force Ben.
*Ultimate Alien Dimension - A possible future of Ben Prime based off Ben 10: Ultimate Alien; it is the home dimension of Ultimate Alien Ben.
*Original Series Dimension - A possible future of Ben Prime based of the Original Series; it is the home dimension of Original Series Ben.
*Omniverse Dimension - A possible future of Ben Prime based off Ben 10: Omniverse; it is the home dimension of Omniverse Ben.
*Gwen 10's Dimension - A dimension where Gwen 10 comes from.
*Billy 10 Timeline - An aborted timeline where Billy Billions gets the Omnitrix and becomes the ruler of the universe.Ben Again and Again
*Squirrel 10 Timeline - An aborted timeline where a squirrel gets the Omnitrix.
*Ben Recovery Timeline - An aborted timeline where present Ben takes the past Omnitrix instead of his past self.
*Gwen 10 Timeline - An aborted timeline where Gwen Tennyson gets the Omnitrix.
*Unnamed Dimensions - Many alternate versions of Ben Tennyson were injured or killed by Ben X as Alien X, as he visited each dimension to steal their Omnitrices. At least 23 of these were seen on Maximilian's display in his Rustbucket.
==Other Timelines/Dimensions== 
*Nexus Realm - The setting of Crossover Nexus, and where CN City is located.
*K.O.'s Universe - The setting of OK K.O.! Let's Be Heroes.
*Garnet's Universe - The setting of Steven Universe.
*Raven's Universe - The setting of Teen Titans Go!.
*Generator Rex Universe - The setting of Generator Rex.
*Various other Cartoon Network show universes.
==Non-Canon Timelines/Dimensions==
*Ben 10 (2017 Video Game) Timeline - A timeline in which the 2017 Ben 10 video game takes place.
*Ben 10: Power Trip Timeline - A timeline in which the video game Ben 10: Power Trip takes place.
==Trivia==
*The first use of the term "Omniverse" was as the title for Ben 10: Omniverse before being mentioned in the Alien Worlds shorts.
*Celestialsapiens can move freely throughout the Omniverse.Maximilian Tennyson
*The Reboot Continuity and the Classic Continuity are part of a greater Cartoon Network multiverse.Crossover Nexus
**Duncan Rouleau claims the Reboot is canon to the Classic Continuity as an alternate reality. He also states that it is possible for Classic Ben and Reboot Ben to meet.
*Maximilian's map of Omniverse resembles the Professor Paradox's map of the Multiverse in And Then There Were None.
*It is initially established that altering the past alters the present, creating aborted timelines. However, this no longer proves to be the case from Ben 10,010, with Ben 10,000's actions causing his timeline to branch away from present-day Ben's.
*Generally, the video games and/or comics aren't canon because they need an internal thematic core binding them. The comics and video games haven't always drawn from canon and are so disparate from each other it would be difficult to find the connective tissue providing that common core.
==See Also==
*Universe
==Notes==
==References==
===Duncan Rouleau===
===Cartoon Network===
===Ben 10 Planet===
Category:Timelines