Ben 10 Crossovers
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A Weird Watch In Gotham by Syncrosoul reviews
Ben Tennyson ended in the crime riddled city of Gotham. The only thing stopping Gotham from collapsing is the Dark Knight and his family. Both are heroes with differing ideologies. So what could possibly go wrong when the most paranoid man meets the most powerfull teenager?
Crossover - Batman & Ben 10 - Rated: T - English - Chapters: 1 - Words: 4,590 - Reviews: 8 - Favs: 22 - Follows: 25 - Published: 8/16 - Barbara G., Bruce W./Batman, Damian W./Robin, Prof. Paradox
Humanity and Heroes by Katariina Mariad
Omniverse/Tamers; sequel to Heroes and Humanity. A little galvan named Albedo is back, and he has a couple of problems: Ben Tennyson is trying to kill him, no one will let him leave this silly planet to get away from him, and everyone in Japan is angry with him. Why did Fridge, Swamps and Hugh think moving him back to West Shinjuku was a good idea?
Crossover - Digimon & Ben 10 - Rated: M - English - Horror/Hurt/Comfort - Chapters: 100 - Words: 212,198 - Favs: 7 - Follows: 7 - Updated: 8/16 - Published: 1/5/2022 - Jenrya L./Henry W., Albedo
Fate Stay Night: A Hero's Path (REMAKE) by Seanathan311 reviews
When Ben Tennyson visits Fuyuki on a trip for Extra credits and some downtime, he finds himself locked into a bloody battle for a Wish-Granting Grail. With no other choice, Ben shall use the power of the Ultimatrix and newfound allies to put an end to the battle and uncover the truth of the Holy Grail War of Fuyuki.
Crossover - Ben 10 & Fate/stay night - Rated: M - English - Fantasy/Adventure - Chapters: 2 - Words: 18,108 - Reviews: 15 - Favs: 59 - Follows: 65 - Updated: 8/15 - Published: 8/7 - [Ben T., Caster] [Shirō E., Saber]
The Playful Side Of A Lantern by GoldGuardian2418 reviews
Lea recalls a funny story with herself and Hal to Ben. Done as a request for Redbat132. Tickles inside. :)
Crossover - Ben 10 & Green Lantern: The Animated Series - Rated: K+ - English - Family/Humor - Chapters: 1 - Words: 1,418 - Reviews: 1 - Favs: 2 - Follows: 1 - Published: 8/14 - Hal J., OC - Complete
Cartoon Heroes Unite by HeroesUnite2020 reviews
Cartoon Heroes Unite fight against evil from various dimensions. Ben Tennyson, Kim Possible, Jake Long, Steven Universe, Danny Phantom and Jenny Wakeman join forces to defeat Aku, Bill Cipher and other villains. They are lured into a trap and sent to other dimensions. Unfortunately, Aku killed Kim Possible. Will they be able to assemble heroes, return and defeat evil?
Crossover - Kim Possible & Ben 10 - Rated: T - English - Adventure/Mystery - Chapters: 17 - Words: 54,454 - Reviews: 20 - Favs: 12 - Follows: 10 - Updated: 8/14 - Published: 7/10/2020 - [Kim P., Ron S.] [Ben T., Rook]
Lost in a World of Heroes by DMDSKLL reviews
After a grave defeat, Ben loses hope in being a hero but after some unexpected circumstances, the wielder of the Omnitrix is transported to a world filled to the brim with heroes. Having to adjust to not only a new country but also going to school to be a hero Ben has plenty of challenges ahead.
Crossover - Ben 10 & My Hero Academia/僕のヒーローアカデミア - Rated: T - English - Sci-Fi - Chapters: 20 - Words: 68,745 - Reviews: 90 - Favs: 234 - Follows: 247 - Updated: 8/13 - Published: 6/7/2022 - Ben T., Shouta A./Eraserhead, Mina A., 1-A Students
BEN 10 y BNHA -La Estrella de UA- by cosmos.custos reviews
El destino haberle negado su sueño, un pequeño ser extiende su mano en aquella chica la cual sería la balanza que mantendría al mundo en equilibrio con su ahora poder aferrado a su brazo izquierdo. Explorando su viaje desde el primer día que se le dio el Omnitrix hasta el final donde se mantendría en pie como la última esperanza.
Crossover - Ben 10 & My Hero Academia/僕のヒーローアカデミア - Rated: T - Spanish - Sci-Fi/Adventure - Chapters: 9 - Words: 73,504 - Reviews: 5 - Favs: 5 - Follows: 7 - Updated: 8/12 - Published: 4/7 - Azmuth, Ship, 1-B Students, Melissa S.
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: 66 - Words: 953,226 - Reviews: 1074 - Favs: 1,350 - Follows: 1,327 - Updated: 8/12 - Published: 12/5/2021 - Ben T., Erza S.
Loud 10 by Bowl of troubles reviews
Lincoln goes with his grandpa max for a summer trip along with his cousins gwen and ben whare they find some interesting alian technology
Crossover - Ben 10 & Loud House - Rated: T - English - Adventure/Family - Chapters: 10 - Words: 11,683 - Reviews: 22 - Favs: 25 - Follows: 18 - Updated: 8/12 - Published: 5/20/2019
Ben 10 the Avenger once again by Longneck Prime reviews
Learning that Captain America died on A-Day. Ben Tennyson goes into self exile as Humungosaur for the next 5 months until one day the Avengers will return
Crossover - Ben 10 & Avengers - Rated: T - English - Humor/Adventure - Chapters: 1 - Words: 955 - Reviews: 2 - Favs: 2 - Follows: 3 - Published: 8/12 - Ben T., Captain America/Steve R., Iron Man/Tony S.
Well I guess this is happening by Pandora's Reader reviews
Waking up against grass in the middle of a park? Weird but I can deal. Waking up in a different body? Still weird, but atleast I'm taller. Waking up with an Ultimatrix on my arm? Well fuck everyone else, I'm winning! Waking up in Brockton Bay? ... Well shit. SI into Worm with an Ultimatrix. I'm kinda an asshole though.
Crossover - Ben 10 & Worm - Rated: M - English - Hurt/Comfort/Humor - Chapters: 65 - Words: 416,908 - Reviews: 610 - Favs: 1,431 - Follows: 1,632 - Updated: 8/12 - Published: 2/1 - [OC, Skitter, Panacea] Dragon
Ben 10-Justice League: The Series by darkstorm1364 reviews
Ben Tennyson was abducted by aliens when he was 10 years old after accidentally received the Omnitrix, but then got rescued by Tetrax. He also brought Rook Blonko with his side. Both Ben and Rook are orphans, where Tetrax trained them to become the Galactic Guardians. Then after reaching his teen years, he received the Ultimatrix and recruiting more members.
Crossover - Justice League & Ben 10 - Rated: T - English - Adventure/Drama - Chapters: 21 - Words: 189,560 - Reviews: 130 - Favs: 285 - Follows: 272 - Updated: 8/12 - Published: 6/7/2020 - [Linda L./Kara Zor-El/Supergirl, Ben T.] Clark K./Kal-El/Superman, Rook
Earth's Mightiest Heroes by UltraPhantom reviews
When the powerful King Detritus and his massive army invade Earth, a group of unaligned heroes and a certain Anti-Hero, discover the only way to fend off the attack will be to work together as a cohesive unit. The Blur, Ben 10, Cat Noir, American Dragon, Gwen, Danny Phantom, Ninja, and Kevin combine their respective talents in an all-out battle to save the planet. YJHU: 1
Crossover - Danny Phantom & Ben 10 - Rated: T - English - Supernatural/Sci-Fi - Chapters: 15 - Words: 47,623 - Reviews: 48 - Favs: 71 - Follows: 75 - Updated: 8/11 - Published: 3/18/2020 - Danny F., Ben T., Gwen T., Kevin
Steven 10: The Crystal Knight Rewrite by XLR8 The Fox reviews
What would happen when a Human/Gem hybrid gets his hands on the most powerful device in the multiverse? Many things, join Steven Universe as he has adventures with his new friend Trix, to stop Creatures from Earth or Space [This is a Rewrite of the story with the same name made by my friend Blackskull, hope ya'll enjoy]
Crossover - Ben 10 & Steven Universe - Rated: M - English - Sci-Fi/Adventure - Chapters: 1 - Words: 12,297 - Reviews: 1 - Favs: 11 - Follows: 8 - Published: 8/11 - Ben T., OC, Steven U.
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: 57 - Words: 575,776 - Reviews: 935 - Favs: 1,233 - Follows: 1,232 - Updated: 8/11 - Published: 1/25/2020 - Lucy M., Izuku M., Ochako U., Momo Y.
Robots in Bellwood by KentroKreations reviews
Where the Aligned continuity of Transformers meets the Classic continuity of Ben 10 after a trip to Earth doesn't go as planned. The main crew crashlands on Earth, just not their Earth. And that's not the only difference. May the dimensional dilemma ensue!
Crossover - Transformers/Beast Wars & Ben 10 - Rated: T - English - Sci-Fi/Drama - Chapters: 5 - Words: 9,768 - Reviews: 3 - Favs: 7 - Follows: 9 - Updated: 8/11 - Published: 7/30 - Bumblebee, Steeljaw, Ben T., Gwen T.
Ultimate Lied by Horrorfan247 reviews
Ben Tennyson finds himself in an alternate version of Kamakura, Japan. Once he hears about the Diclonius and the about the queen, it's up to our favorite Omnitrix wielder to get to the bottom of it. Takes place after Ultimate Alien and right at the start of Elfen Lied. Going to mix things from both the anime and the manga. Eventuall BenxLucy
Crossover - Elfen Lied & Ben 10 - Rated: M - English - Sci-Fi/Adventure - Chapters: 37 - Words: 254,612 - Reviews: 252 - Favs: 195 - Follows: 179 - Updated: 8/11 - Published: 9/25/2019 - [Ben T., Lucy / Nyu] Kohta, Yuka - Complete
tn-shi 10: Omniverse by hys8892 reviews
What if Shinji Ikari gets the 'Omnitrix?He changes his destiny with the incredible power of the Omnitrix.
Crossover - Evangelion & Ben 10 - Rated: T - English - Sci-Fi/Spiritual - Chapters: 1 - Words: 2,940 - Reviews: 2 - Favs: 3 - Follows: 3 - Published: 8/11 - Shinji I., Rei A., Asuka L. S., Kaworu N.
A Vladat's Old Republic by ReximusProductionsYT reviews
Virgil was the only survivor among the clones that Zs'Skayr created from Lord Transyl's DNA, and he was strong in the Force. Trained from a young age as a Jedi, a wormhole opens in the fabric of space and time that sends him back to the age of the Old Republic. But the path he takes isn't the path of the Jedi. Watch as he works to change the Sith Empire from the inside!
Crossover - Star Wars & Ben 10 - Rated: T - English - Adventure/Sci-Fi - Chapters: 1 - Words: 5,173 - Reviews: 2 - Favs: 12 - Follows: 11 - Published: 8/10 - OC
Amphibia 13! by Vgn Golley reviews
Anne and Dereck were just normal kids enjoying their average lives, until one day, they were forced by their friends to steal a musical box, and a pair of strange watches fell down from the sky as they were then transported into another world. Now watch as the kids live among the Frogs, go on adventures, and learn secrets from their Omnitrixes! Full summary in the first chapter.
Crossover - Ben 10 & Amphibia - Rated: M - English - Adventure/Sci-Fi - Chapters: 16 - Words: 238,735 - Reviews: 103 - Favs: 101 - Follows: 90 - Updated: 8/10 - Published: 6/1/2021 - [Anne, OC] Sprig, Hop Pop
The Experimental Gamer by Rightomate reviews
Gamer Fic with an anodite from Ben 10. First world is Borderlands, hope you enjoy
Crossover - Ben 10 & Borderlands - Rated: M - English - Fantasy/Sci-Fi - Chapters: 4 - Words: 44,804 - Reviews: 13 - Favs: 114 - Follows: 166 - Updated: 8/10 - Published: 5/31
Ben 10 RWBY Volume 2: Ultimate Omniverse by The Omni-Remnant reviews
Having returned from a massive adventure in the world of Remnant, Ben, Team RWBY, and the rest of their friends find themselves faced with new challenges at every turn on Earth. Be it villains old and new… or even things that they never imagined to be real. It's going to be a challenge unlike any they've seen before, but they're up for it. It's Hero Time! (Cover Art credit inside)
Crossover - Ben 10 & RWBY - Rated: T - English - Adventure/Romance - Chapters: 71 - Words: 990,482 - Reviews: 1432 - Favs: 606 - Follows: 569 - Updated: 8/10 - Published: 4/4/2021 - [Ben T., Yang X.L.] Gwen T., Ruby R.
My Hero Academia: Rising Alliance by Super Saiyan 4 Rukido reviews
Earth as we know it today felt like they could expect anything. They had Heroes with powerful Quirks, technology that benefited them greatly and a society that wouldn't crumble to pieces easily. What's there to worry about? How about Villians hellbent on world domination, a few secret organizations and Aliens from Space? Lucky for the Earth it has it's own protectors just for them!
Crossover - Ben 10 & My Hero Academia/僕のヒーローアカデミア - Rated: T - English - Adventure - Chapters: 31 - Words: 215,948 - Reviews: 148 - Favs: 184 - Follows: 197 - Updated: 8/9 - Published: 5/23/2021 - OC, Ship, 1-A Students
Galactic Shift Extend: Side Stories by Seanzilla1988 reviews
A series of side stories featuring the many characters and series within Galactic Shift Extend's universe.
Crossover - X-overs & Ben 10 - Rated: T - English - Chapters: 27 - Words: 396,411 - Reviews: 139 - Favs: 104 - Follows: 88 - Updated: 8/9 - Published: 8/17/2020
Harrison Tennyson by spitfyre1 reviews
After Vernon went too far one day Harry found himself a new family, meet Harrison Tennyson, hero, plumber. How will he handle his new responsibilities as a world he left behind wants him back eventually Pairing HP/GT/KE and potentially more.(FEM! Kevin)
Crossover - Harry Potter & Ben 10 - Rated: T - English - Romance/Adventure - Chapters: 5 - Words: 16,367 - Reviews: 35 - Favs: 307 - Follows: 335 - Updated: 8/9 - Published: 11/9/2021 - [Harry P., Gwen T., Kevin]
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