Ben 10 Crossovers
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Ben 10: An Outsider Hero by GRS19 reviews
Ben Tennyson once again saved the universe after defeating the evil Chronosapien Mautruant, but in a completely different world, in a completely different village, there are people who need a hero, and a boy with a "magic watch" would be a good call. How will the Omnitrix Wielder deal with the dangers that plague this place?
Crossover - Ben 10 & Resident Evil - Rated: M - English - Sci-Fi/Supernatural - Chapters: 17 - Words: 60,616 - Reviews: 21 - Favs: 78 - Follows: 82 - Updated: 10/11 - Published: 4/18 - Ben T., Prof. Paradox, The Duke, Mother Miranda
The Alien Hero of Teyvat by TheDJwriter reviews
Ben is transported to the world of Teyvat because he severely underestimated a technology that belonged to Dr. Psychobos. What sort of adventures would be in store for the extraterrestrial hero in this strange new world?
Crossover - Ben 10 & Genshin Impact - Rated: T - English - Adventure/Humor - Chapters: 10 - Words: 142,449 - Reviews: 166 - Favs: 276 - Follows: 303 - Updated: 10/11 - Published: 11/10/2022 - Ben T.
Sonic's extraterrestrial adventures by Fictional Bros reviews
What if a ten year old boy with an alien watch stuck on his wrist met a small blue hedgehog that can run incredibly fast, how will their interaction impact each other as they take on bad guys from earth or space. Guess it's safe to say that for both them, that this summer vacation has gotten a whole lot more interesting . (Slight pairing)
Crossover - Sonic the Hedgehog & Ben 10 - Rated: K - English - Adventure/Family - Chapters: 5 - Words: 42,244 - Reviews: 13 - Favs: 11 - Follows: 12 - Updated: 10/10 - Published: 12/31/2022 - Sonic, Ben T., Gwen T., OC
Omni-Directional Warhammer by oliverjack666 reviews
A poor sap gets thrown into Warhammer 40k with the Omnitrix. In the Grim Dark of Warhammer, It's time for somebody to for a Hero to Rise.
Crossover - Warhammer & Ben 10 - Rated: M - English - Sci-Fi - Chapters: 2 - Words: 4,706 - Reviews: 4 - Favs: 19 - Follows: 17 - Updated: 10/10 - Published: 7/20
Obnoxious Aliens Times 10 by MJWatt1998 reviews
Ben is pitted in a game of tag against a cute alien girl named Lum Invader who belongs to a race called Oni where they have come to take over the Earth. He is given a week to touch Lum's horns as part of the rules or else his planet is doomed.
Crossover - Urusei Yatsura & Ben 10 - Rated: K - English - Sci-Fi/Humor - Chapters: 4 - Words: 19,239 - Reviews: 15 - Favs: 40 - Follows: 38 - Updated: 10/10 - Published: 10/10/2022 - Lum, Ben T., Max T., Rook
Runeterra: The Long Journey by CupcakeLover7 reviews
Benjamin Tennyson's life in Piltover has always felt limiting to him, especially with a strict woman like Caitlyn as his sister. But when he discovers a journal left behind by his dad, he finds the desire to trace his dad's footsteps and discover what the world of Runeterra can offer him, from monsters, to legendary champions to even unexpected things like... love and friendship!
Crossover - Ben 10 & League of Legends - Rated: T - English - Adventure/Drama - Chapters: 1 - Words: 26,841 - Reviews: 13 - Favs: 22 - Follows: 21 - Published: 10/10 - [Caitlyn, Vi] Ben T., Gwen
Omniverse Earth-38 by choejhulkp9 reviews
The multiverse is a big, wide open space of possibilities. Think of them like snowflakes: they look similar but they're different enough. This earth is no different. A citizen of earth finds himself wielding the most powerful weapon in the universe. It stuck itself upon his wrist with secrets that it hid. Now he's got superpowers, he's no ordinary kid. He's...well, you get it.
Crossover - Ben 10 & DC Superheroes - Rated: M - English - Chapters: 11 - Words: 330,789 - Reviews: 289 - Favs: 916 - Follows: 945 - Updated: 10/9 - Published: 1/1/2021 - C. Kent/Kal-El/Superman, Kara Z./Supergirl, OC
Loud 10 by Smoking Wrecker reviews
Lincoln found this watch that allows him to turn into 10 different aliens. He'll use his new powers for good with the help from Clyde and Ronnie Anne.
Crossover - Ben 10 & Loud House - Rated: T - English - Sci-Fi/Adventure - Chapters: 45 - Words: 106,377 - Reviews: 247 - Favs: 143 - Follows: 121 - Updated: 10/9 - Published: 2/22/2019 - Clyde, Lincoln L., Ronnie Anne S.
Izuku Wielder of the Omnitrix by skorge73 reviews
What if Izuku received the power of the Omnitrix instead of One for All Rated M for possible mature themes
Crossover - Ben 10 & My Hero Academia/僕のヒーローアカデミア - Rated: M - English - Romance/Adventure - Chapters: 3 - Words: 4,359 - Reviews: 2 - Favs: 13 - Follows: 18 - Updated: 10/9 - Published: 10/1 - [Izuku M., Setsuna T.]
DNA- Up For Adoption by SpringBonnie313 reviews
What if Izuku had hyper-intelligence? What if he knew how to manipulate the gene pool? What happened to Inko? How does Penny play into this?
Crossover - Ben 10 & My Hero Academia/僕のヒーローアカデミア - Rated: T - English - Adventure/Sci-Fi - Chapters: 3 - Words: 4,850 - Reviews: 5 - Favs: 25 - Follows: 29 - Updated: 10/9 - Published: 7/11/2021 - [Izuku M., Kyoka Jiro] Vilgax, Zs’Skayr
The Mandalorian: The Chronicles of Lun 10-Original Series by Vgn Golley reviews
Luna Loss was your average little girl until one day she was kidnapped by an alien warlord after obtaining a watch-like device that allows her to transform into aliens. After escaping into space for about two years, Luna had lost all hope of going back home...but maybe a certain Mandalorian and an alien baby Jedi could help her return to Earth? Rated M-language violence and blood.
Crossover - Ben 10 & Mandalorian - Rated: M - English - Sci-Fi/Adventure - Chapters: 34 - Words: 838,720 - Reviews: 136 - Favs: 107 - Follows: 92 - Updated: 10/8 - Published: 12/23/2020 - OC, The Mandalorian/Din Djarin, The Child/baby yoda
Rising Voltage by Phaze Part 2 reviews
They were just legends. Legends of a device that could allow one to transform into anyone. But they were just that. Legends. Fables told to children before bed. So, what would happen if that device appeared in the hands of a human who struggled with grades and with his quirk? Well, that would be the story of Denki Kaminari.
Crossover - Ben 10 & My Hero Academia/僕のヒーローアカデミア - Rated: T - English - Adventure/Sci-Fi - Chapters: 1 - Words: 13,298 - Reviews: 4 - Favs: 6 - Follows: 8 - Published: 10/8 - Eijiro Kirishima, Hanta S., Denki K.
The heroes of tommorow by The Ben writer reviews
What happens when the forces of evil are finally caught up with the lordess of light and she is forced to select her final champions once and for all ( ps first chapter is just info) ,t for safety
Crossover - X-overs & Ben 10 - Rated: T - English - Adventure/Friendship - Chapters: 2 - Words: 937 - Reviews: 1 - Favs: 2 - Follows: 2 - Published: 10/7 - Ben T., Gwen T., OC, Prof. Paradox
Lincoln Loud: Omnitrix Adventures by Rodimus973 reviews
When an alien watch falls down from the far reaches of space, Lincoln Loud acquires it and gains the ability to transform into 10 different aliens. With some help from his family, Lincoln will protect Royal Woods from common criminals, galactic warlords and many different evil villains and keep his secret from the rest of his friends.
Crossover - Loud House & Ben 10 - Rated: T - English - Family/Sci-Fi - Chapters: 9 - Words: 79,278 - Reviews: 85 - Favs: 87 - Follows: 90 - Updated: 10/7 - Published: 10/28/2021 - [Lincoln L., OC] Vilgax, The Loud Sisters
Ben 10 Omni-Magic Summer by Feedbackblast18 reviews
When 10-year-old Ben Tennyson is sent to his Aunts in Canterlot City for the summer, he thinks he is going to have a horrible vacation. but when a strange watch from space literally crashes into his life, he finds himself in the shoes of 10 different alien superheroes! With the help of some new friends and his family, Ben 10 can take on anything! 1 part kid, 10 parts superhero!
Crossover - My Little Pony & Ben 10 - Rated: K+ - English - Adventure/Sci-Fi - Chapters: 20 - Words: 134,261 - Reviews: 21 - Favs: 24 - Follows: 22 - Updated: 10/6 - Published: 9/21 - Princess Celestia, Sunset Shimmer, Ben T., Max T.
A Hero's Life Reboot by Feedbackblast18 reviews
During a battle with Vilgax, a freak weapon malfunction has duplicated and sent 11-year-old Ben Tennyson to another Earth, altogether. Now, not only does he have to get used to this new world, where he is found by 3 teen spy girls, but also figure out how to use the Omnitrix after it rebooted and back to 10 aliens again! This AU Ben has a different middle name from Ben Prime.
Crossover - Totally Spies & Ben 10 - Rated: K+ - English - Humor/Sci-Fi - Chapters: 19 - Words: 104,406 - Reviews: 22 - Favs: 19 - Follows: 16 - Updated: 10/6 - Published: 9/21 - Alex, Jerry, Ben T.
The Alien Hero: Deku 10 by Pixel's Fanbook reviews
It started when an alien device did what it did. Izuku Midoriya found a strange device on the beach one night after training when the device jumps onto his wrist. It grains him abilities from beings from other worlds. Watch him as he and his friends go through their adventures on Earth and Space in: The Alien Hero: Deku 10
Crossover - My Hero Academia/僕のヒーローアカデミア & Ben 10 - Rated: M - English - Adventure/Sci-Fi - Chapters: 59 - Words: 607,369 - Reviews: 966 - Favs: 1,265 - Follows: 1,263 - Updated: 10/6 - Published: 1/25/2020 - Lucy M., Izuku M., Ochako U., Momo Y.
Dial: Call Resumed by DesertChocolate reviews
The Sequel to Dial, continuing the story of a self-insert in the MCU fighting on the side of heroes using an Omnitrix. Things are heating up. New enemies, heroes, and dumb mistakes from politicians are ahead. And all the while, the stars hide new threats. Also posted on RoyalRoad
Crossover - Marvel & Ben 10 - Rated: M - English - Sci-Fi/Fantasy - Chapters: 12 - Words: 55,588 - Reviews: 288 - Favs: 1,093 - Follows: 1,190 - Updated: 10/6 - Published: 4/2/2022 - S. Rogers/Captain America, N. Romanov/Black Widow, C. Xavier, Ben T.
Korea's Omnitrix Wielder by ultra kurama reviews
Nathaniel Smith was your average teenager who also happened to be a fan of the Ben10 series. Now, armed with an Omnitrix of his own, he and his friends are going to go adventure after adventure in search of establishing peace.
Crossover - Ben 10 & Manhwa/Korean Comics/만화 - Rated: M - English - Supernatural/Adventure - Chapters: 4 - Words: 7,880 - Reviews: 9 - Favs: 29 - Follows: 30 - Updated: 10/6 - Published: 6/5 - OC
Linc 10 Alien Force by ChaosMagemon reviews
Four years have passed since Lincoln Loud discovered the Omnitrix and saved the world more times than he could count. But when his Pop-pop gets captured it's up to Lincoln to once again don the alien watch and be the hero the world needs once again.
Crossover - Ben 10 & Loud House - Rated: T - English - Adventure/Humor - Chapters: 20 - Words: 55,136 - Reviews: 380 - Favs: 237 - Follows: 214 - Updated: 10/6 - Published: 1/1/2020 - [Lincoln L., OC] Vilgax, Albedo
Ultimate Fairy: Volume II by pyrohelixdrago reviews
Ben Tennyson has found himself in another universe, one filled with magic he never imagined. He comes across a few wizards who invite him to their guild, Fairy Tail. With no immediate ways to return home Ben must adapt to this new world, form new bonds, and grow stronger with his teammates to overcome many obstacles. Adopted from Ultimate10
Crossover - Ben 10 & Fairy Tail - Rated: T - English - Chapters: 67 - Words: 962,564 - Reviews: 1119 - Favs: 1,383 - Follows: 1,352 - Updated: 10/6 - Published: 12/5/2021 - Ben T., Erza S.
Heroes Never Die It's Hero Time, Anytime by Guardian-Sigil reviews
This is a side-story that is connected to my actual story "Heroes Never Die; It's Hero Time" where Izuku has the Omnitrix. So reading the main story is necessary to understand this collection of Omakes/OVAs. I aim to post an Omake/OVA every Friday when I am unable to post a chapter for the main story. Full summary, explanation, and guid lines for suggestions are inside.
Crossover - Ben 10 & My Hero Academia/僕のヒーローアカデミア - Rated: T - English - Adventure/Humor - Chapters: 50 - Words: 134,747 - Reviews: 455 - Favs: 212 - Follows: 207 - Updated: 10/6 - Published: 8/11/2021 - Izuku M., Ochako U., 1-A Students
Ben 10 Power Rangers:Shattered Grid by JerryAwesome24 reviews
Ben Tennyson hero of the universe has a new challenge for him when a new threat named Lord Drakkon. So Ben teams up with the Power Rangers throughout the Multiverse to defeat Lord Drakkon from stealing their Morphers and stop him at all costs from access to the Moprhin Grid. May the Power Protect Him.
Crossover - Power Rangers & Ben 10 - Rated: K+ - English - Sci-Fi/Adventure - Chapters: 2 - Words: 9,617 - Reviews: 9 - Favs: 19 - Follows: 20 - Updated: 10/5 - Published: 5/24 - Jason L. S., Kim H., Tommy O., Ben T.
A Lost Hero's Fairytale by Ultimate10 reviews
Ben Tennyson has awakened in the magical world of Earthland with amnesia, no memory outside of his name. Follow our lost hero as he travels across Fiore, making new friends and enemies, catching the interest of certain people, and rediscovering who he truly is. Ben x Harem. **No nerfing! The Ink Tank power rankings**
Crossover - Ben 10 & Fairy Tail - Rated: M - English - Fantasy/Romance - Chapters: 8 - Words: 86,324 - Reviews: 270 - Favs: 450 - Follows: 508 - Updated: 10/4 - Published: 2/18 - [Ben T., Lucy H., Juvia L., Erza S.]
Ultra Legions Heroes United by Arsenal10 reviews
When a species called the novatron they're objective is to conquer the multiverse and rule to their image so It's up to Ben Tennyson and other superheroes of each earth to stop them. It's time to unite Ultra legions.
Crossover - Cartoon X-overs & Ben 10 - Rated: K - English - Adventure/Supernatural - Chapters: 19 - Words: 113,326 - Reviews: 19 - Favs: 14 - Follows: 10 - Updated: 10/4 - Published: 8/30 - Danny P., OC, Ben T., Prof. Paradox - Complete
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