Ultimatealien Stories

Everyone's heard of the story and legend of Ben Tennyson and on how he saved the universe countless of times. But what if there was another? Another Hero. What if there...

Ben is driving a while after the final battle in Ultimate Alien and ends up in a portal to another world. Ben doesn't get the new Omnitrix due to Azimuth not finishing i...

set 4 years after Gwen 10 classic. since the ending of Gwen 10 classic gwen has taken off the omnitrix, and has returned to a normal life. However when her grandpa max f...

After defeating Vilgax the Conquerer, Izuku Midoriya continues on his journey to master the secrets of the Omnitrix and become the next No.1 hero in the world. He'll hav...

A book of various one shots and scenarios involving Charmcaster from Ben 10 and the male reader.

The Second Book in the Ben 10 Dark Apocalypse series. CaD12, Ben's former boss, and mentor, is running for Mayor of Sion City. As CaD begins making moves to change the...

ITS HERO TIME.. or is it Deja Vu Time? After a tussle with the mysterious contestant of the Radiant War known as Shi Jian, aka the Time Traveler, Ben starts to suddenly...

Ben Tennyson is in a world filled with superheros and it's up to him to save the day. Watch as he encounters psychic sisters, kung fu masters, cyborgs, and villains you...

After a long first year of classes at UA, All Might has invited Deku and Uraraka to an early access event of the annual hero expo on I-Island where the latest in hero ge...

After the aftermath of his last great battle- he had finally gotten rid of Vilgax, his greatest ever enemy for good, but at what cost? Since that day, Ben 10, the infamo...

Earth.. Water... Fire... Air... My grandmother used to tell me the tales of a long lost civilization from long ago, from before even the First Avatar, that existed witho...

Ben wasn't the only one who received a mysterious alien watch. A boy by the name Y/n L/n also had one we he found it while taking a late night walk in his hometown Bellw...

(Takes place in the Tv series) Whats better then a kid with the powers of a Spider? A kid with a watch that can transform into aliens that helps the kid with spider powe...

(A Loud house x Ben 10 Ultimate Alien crossover) Ben fights an unknown being who then causes a DNA rupture in the Ultimatrix, Sending a massive wave to transform half of...

Y/N L/N the World Famous Superhero who can transform into different Aliens is now transferring to Japan as the only male student in IS Academy. What will happen when he...

[Ben 10 x Marvel x Nakano Quintuplets OC Crossover!] You may know Ben Tennyson aka Ben 10, right? The Omni Heroes of the multiverse, right? But what if Ben found his suc...

Jaune Arc lost everything. Pyrrha his partner betrayed him, his family disowned him, most of his friends left him in the dust. Only after he disappears, do his former fr...

Ben Tennyson is giving a chance to explore a whole new world filled with pirates, treasure, monstrous creatures, and so much more. Watch as he puts together the stronges...

(Take Place A Month Later After Ben 10 X Generator Rex: Heroes United) Ben Tennyson,a famous hero who protect people from an alien invasion and his enemies.After a month...

It started when an alien device did what it did, and stuck itself upon their wrist with secrets that it hid, now they got super powers, there no ordinary kids.