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Marvel's Omnitrix [A Ben 10 x Marvel Isekai]
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MatureOngoing29h 49m
Last published Sat, Jul 11, 2026
Reborn as Ben Tennyson in a world merging Ben 10 and Marvel, an 18-year-old's summer road trip becomes an epic adventure when he discovers the Omnitrix.
With memories of his previous life about both universes suddenly emerging in his head, he must navigate threats from Vilgax's bounty hunters to Thanos' inevitable snap. Despite the galactic dangers thrown at his face, he was always ready, and always geared a notch above.
It's Hero Time!
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The Ultimate Hero (Harem x Male Omnitrix Reader)
(y/n) (l/n), a 10 year old boy, is going a summer roadtrip with his mother and father, and his cousin. That is until his summer gets more exciting and intense, as he soons finds a device called the Omnitrix, a device that lets him transform into 10 different aliens. (y/n) will face many challenges and villains as this will be one summer vacation he will enjoy.
Ben 10 Retold: Male Reader Insert.
The actual Ben 10 story that actually follows the continuity with my ideas added in. Ben 10 belongs to cartoon network and all artwork used belongs to it's respective owners, Also you belong to yourself. I'm just the writer. Y/N=your name h/c= hair color e/c= eye color.
THE INCREDIBLE BEN 10 (discontinued)
ben tennyson has been through so many adventures during his summer vacation ever since he layed eyes on the most powerful device in the universe omnitrix! ben's learnt alot during his time on summer vacation with his grandpa max and cousing gwen tennyson and returns back home when summer vacation end and still fights bad guys with his grandpa max and gwen. but vilgax returns for revenge on ben 10 for throwing him across the cosmos as way big. their fight was brutal across bellwood that it ends with a bloodlusted ben 10 brutally killing vilgax tragically killed gwen to break ben....and it did. after that day, ben left his family, abandoned bellwood and became a runaway jumping city to city stopping crime and bad guys along with saving lives over the years now as a teenager ben 10 was about to stop a alien weapons deal going down until he sees kevin 11 there much to him and kevin's surprise and they get sucked into the universal teleporter because of it. now ben 10 finds himself in a very different universe where heroes have become illegal and now lives with a family of supers the parrs, ben will face many challenges from both his universe and the one he's in along with protecting the parrs who adopted him becoming a part of their family as ben becomes involved with mr incredible wanting to relive his glory days as a superhero. watch as ben 10 builds himself back up facing his trauma and the loss of gwen, facing off against syndrom, screenslaver so much more villains to come alongside becoming friends with kevin 11.
Ben 10 x crossover harem
Going on Summer vacation with a few twists along the way. Follow this version of Ben Tennyson as he along with his family and new friends go on an epic road trip across the states with the most powerful device in the universe, the omnitrix. RWBY created by Monty Oum (1981-2015) Ben 10 owned by Man of Action
Ben 10 in the Arrowverse (Book 1)
Ben Tennyson is sent into another dimension and gets trapped there, but he meets some heroes in the Arrowverse. This will take place around season 4 of The Flash, season 6 of Arrow, Season 3 of Supergirl, and season 3 of Legends of Tomorrow. Story was made on 4/8/2022 Story was completed on 10/1/2022 (Disclaimer) I do not own "Ben 10", "Arrow", "The Flash" or the "Arrowverse". I also don't own the pictures or videos I use in the story. Enjoy! #1 in alternatedimension 10/3/2022 #1 in bentennyson 10/8/2022 #1 in ben10fanfiction 10/6/2022 #1 in arrowverse 10/15/2022 #1 in ben10 10/15/2022 #1 in dcfanfiction 10/20/2022 #2 in ultimatealien 10/20/2022 #2 in dc 10/22/2022 #3 in barryallen 12/1/22 #2 in dcccomics 12/24/22 #1 in supergirl 2/21/23Complete
(English) BEN 10: Astra Lovers (BEN 10 CHAQUETRIX)
Ben Tennyson, a seemingly ordinary fourteen-year-old boy, was granted immeasurable power from outer space. This power granted him extraordinary abilities that would catapult him into adventures of epic proportions, carrying the mantle of the universe upon his shoulders. However, his unexpected traveling companions don't entirely share that perception; they just want something more with Young Tennyson. This is a loose interpretation of the Ben 10: Chaquetrix AU, created by @TrixTheAlien on Twitter/X. You can find all the illustrations on my Twitter, @BlueWolfArtista.
Ben 10: My Hero Academia - Road to Two Heroes
Ben Tennyson had been through a lot in the past few months as he started his journey into UA, Defeated a villain at the USJ, winning the sports festival, and defeated the Hero Killer Stain. Now that the final exams have concluded, Ben officially starts his short vacation before the training camp begins...... And what could be better than a short road trip to the I-island Expo? Join Ben, Mina, Kirishima and Max as they travel throughout the the countries, meeting new and old friends, facing new enemies and discovering new aliens along the way. I do not own any art, videos, or music used in this story, unless I created it myself. -My Hero Academia is owned by Kohei Horikoshi -Ben 10 is owned by Man Of ActionComplete
Ben 10: My Hero Academia - Season 3
After a road trip throughout the country and across the state, dealing with Knights, mushrooms, sea creatures and gangs. Ben and his friends return back home after their trip to I-Island, now that they're back Class 1A enters the training camp phase of their schooling to be heroes. Unaware of the dangers that await them. Ben will have to overcome some major obstacles in his journey to becoming a hero, villains beware, cause It's Hero Time!!! I do not own any art, videos, or music used in this story, unless I created it myself. -My Hero Academia is owned by Kohei Horikoshi -Ben 10 is owned by Man Of ActionComplete
Ben 10: My Hero Academia - Season 4
Things have begun to change for Ben Tennyson as he has overcome a lot in a short time. Battling the dangerous All For One and Vilgax, meeting new friends, getting a girlfriend and even a new Omnitrix. But with all of the positive things, there are soon to be some negative sides to the life of the Omnitrix Wielder. Now Ben is going to be dealing with more dangerous threats and meeting more unique beings along the way. I do not own any art, videos, or music used in this story, unless I created it myself. -My Hero Academia is owned by Kohei Horikoshi -Ben 10 is owned by Man Of ActionComplete
Protocol OBT - OmnitrixBen10
Ben Tennyson, legendary hero of the galaxy and the most powerful weapon universe. Now must learn about this new Omnitrix which is himself. *Story based on the Omnitrix Ben Au that hiffuu created on instagram. This fic takes place right after what happened in the comic that hiffu posted about the origin of this Au The Incidents (origin) Go check hiffu on instagram if you want visual material of this Au, their art is amazing!* Ben 10 and all its character doesnt belongs to meComplete![The Second Hero [Ben 10 x OC]](https://img.wattpad.com/cover/368775714-256-k855520.jpg)
The Second Hero [Ben 10 x OC]
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 was another wielder of an Omnitrix Variant? This is story about eleven-year-old child named Adam Arius, best friend of Ben Tennyson, who became the universe's Second Hero. ------------------------------------------------------------ Disclaimers: 1. Ben 10 does not belong to me. It is from the group known as "Man of Action" 2. Pictures, GIFs and Videos used in the making of this story belongs to their respective owners. So, give them the credit not me.
Hero Time
It started when an alien device did what it did. It stuck itself upon his wrist with secrets that it hid. Now he's got super powers, and he's using them to fight alongside earth's mightiest hero's. *Disclaimer: I do not own Ben 10 or The Avengers. Ben 10 belongs to Man of Action and Warner Bros and The Avengers are owned by Marvel Comics and Disney. There are also elements and alien transformations that come from the comic series 5 Years Later, which belongs to The Ink Tank. Lastly, all the pictures and art within the story do not belong to me and instead belong to their respective owners.* All characters are 18 years of age and above
Heroes Together Forever (Ben 10 X Male Reader)
Ten-year-old Ben Tennyson and his best friend (Y/N) (L/N) discover two mysterious devices, the Omnitrix and Ultimatrix on their summer vacation. The devices allow them to transform into ten different alien forms replete with unique superpowers. While (Y/N) has the additional functionality to turn his aliens into their most powerful form, going from hero to Ultimate
Ben 10: My Hero Academia - Season 2
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When his two arch nemesis teamed up to destroy him, 10 years old Ben Tennyson did everything in his power to defeat them then he got transported into a universe that no one seems to know what an extraterrestrial life is. But that's just the tip of the iceberg. Unknown to him, this event endangers the future that lies ahead. Yes, this is another Ben 10/Frozen crossover. ¯\_(ツ)_/¯Complete
(y/n) (l/n), a 10 year old boy, is going a summer roadtrip with his mother and father, and his cousin. That is until his summer gets more exciting and intense, as he soons finds a device called the Omnitrix, a device that lets him transform into 10 different aliens. (y/n) will face many challenges and villains as this will be one summer vacation he will enjoy.
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