Ben 10 Planet

Primus (Planet)

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The characters and/or events in the storyline depicted in this article have been erased from the main continuity.
General Information
Species Voliticus Biopsis
First Appearance Primus

Primus was a planet introduced in the eponymous episode of Ben 10: Alien Force. Actually a giant organic machine created by Azmuth, it was revealed to be the source of the DNA samples for the original Omnitrix and Ultimatrix.


Primus' existence was first hinted in Ghost Town when Vilgax freed Zs'Skayr in exchange for a secret about the Omnitrix. Zs'Skayr replied with a single word: "Primus." This secret is later revealed to be the existence and location of Primus in the eponymous episode, where Primus appeared.

Intending to disable the Omnitrix and take it from Ben, Vilgax went to Primus. Sensing his arrival, Primus called Azmuth and the Omnitrix. The Omnitrix left Ben to Azmuth to help him defeat Vilgax. Vilgax eventually defeated Azmuth and took the Omnitrix, but was unable to use it. Upon learning how important Primus was for Azmuth, he threatened to destroy it, but Ben was able to trick him in order to take the Omnitrix from him and defeat him. After Vilgax was gone, Azmuth moved the location of Primus so Vilgax could not find it again.


Primus appeared as a jungle-like planet, full of vegetation and various unintelligent alien life forms, some of them were dangerous. The main creatures on Primus were Voliticus Biopsis, mosquito/wasp-like robots created by Azmuth that traveled the universe in order to find new alien DNA to add to the Codon Stream. Primus seemed to have a mind of its own, as it was able to call Azmuth when Vilgax arrived.

The main element of Primus was the Codon Stream, a green liquid substance present throughout Primus. It actually served as the database for the Omnitrix, containing all the DNA the Voliticus Biopsis found in the Milky Way Galaxy. The Omnitrix communicated with this database, which gave it the information necessary to modify the wearer's genetic code and allow them to transform.

Notable Inhabitants

Notable Visitors



  • According to Derrick J. Wyatt, Primus and the Codon Stream were erased from continuity in Omniverse by the Anihilaarg.[1]
    • According to Matt Wayne, this is not definite until it's addressed in the series.[2][3][4]
  • The Unitrix was not connected to Primus and had no need for it's function as it was intended to store each alien DNA in its own separate container. As such, it does not have a wireless receiver like its later models, the Original Omnitrix and the Ultimatrix.
    • Azmuth later added a one way connection to it so it could upload samples on its own. While active, this feature can cause interference with a nearby Omnitrix core that is connected.
  • It is mentioned in The Transmogrification of Eunice that Primus needed periodic care and maintenance which was proven true in Simian Says.
  • Without care and maintenance, it can affect the operation of the prototype Omnitrix/Ultimatrix in the long run.
  • It is shown that Eunice was one of Primus's caretakers.
  • Primus' connection to the prototype Omnitrix/Ultimatrix seemed to have no problem at all in transcending dimensions. They were fully functional in the Null Void, Ledgerdomain, and even to places such as video games in Game Over, outside the universe like the hidden Forge of Creation and in parallel universes as shown in Ben 10-Generator Rex: Heroes United.
  • Primus is a setting in Ben 10: Galactic Racing.
  • Before Azmuth invented the original Omnitrix, Primus was a work in progress and did not have a DNA database.


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