Confirmed to appear during the creation of a list of important Fantendo characters. When confused for UN10, a character that appeared in Fissure (2014), Exotoro corrected and confirmed that he would be part of the plot.
In Tragedy (2015), UNT3N is one of the three main antagonists and one of the closest to kill Unten. He is a robot created by Doomulus Grime with use of some of UN10's tech and some new metal shifting technology, allowing him to turn his body in a living weapon. While corned on a ledge of a cliff, UNT3n prepares to kill Unten and Fanti, but Fanti reveals his AI origins and takes over UNT3N's body, plunging it into the abyss below. After Zeon explodes, UNT3N's mangled body seen in space, fighting off the other AI in his body.
On the Fracture Point map page, it confirms Fantendo Neobomb as a location where UNT3N took over, implying that he may be in the game.
Tragedy (2015) and the New Fantendoverse
UNT3N is a unfeeling robot, dedicated to his mission of killing Unten, which he comes rather close to. He is frustrated when he does not succeed and is a very tough opponent, almost outmatching Unten.
During Xerra: The Last Beorn Volume 2, he is revealed to still be alive even after thousands of years. When he sees Xerra, he attempts to kill her but Fanti doesn't allow him to, suggesting he may he want to kill Beorns in general after failing to kill Unten.
- He was said to be inspired by characters like the Terminator and Ultron.
- UNT3N's appearance in Xerra: The Last Beorn/Volume 2 seems to have Tyyrian Shim's cyborg arm.