Ben 10 Crossovers
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Crona Tennyson by jboy44 reviews
One day, Ben woke up in a real creepy place to find a baby, and a wicked witch. What did he do? beat up the witch take the kid adopted her and get out of there. Now watch as Crona grows up a Tennyson.
Crossover - Ben 10 & Soul Eater - Rated: M - English - Family/Supernatural - Chapters: 12 - Words: 29,093 - Reviews: 10 - Favs: 23 - Follows: 23 - Updated: 9/15 - Published: 8/2 - [Ben T., OC] Crona
Wrath Of A Fallen Hero by Mace sheperd reviews
Heroes let villains get away with an awful lot. But what if a villain were to push a hero too far? When Albedo pushes Ben Tennyson past his breaking point all villains will feel the wrath of a fallen hero.
Crossover - Ben 10 & Kuroinu: Kedakaki Seijo wa Hakudaku ni Somaru - Rated: M - English - Sci-Fi/Romance - Chapters: 11 - Words: 107,195 - Reviews: 52 - Favs: 133 - Follows: 150 - Updated: 9/15 - Published: 3/9
The Omni-Rose Huntress - Ruby Rose by Kaizerthewriter reviews
The Omnitrix, a weapon capable of the either intergalactic peace or massive universal destruction. In one universe, the prototype was created by Azmuth of the Galvan and landed in the hands of a young Benjamin Tennyson. But in this universe (this story), not only was it created by another alien, but it also landed in the hands of a more... simple soul. (Rated M just in case)
Crossover - Ben 10 & RWBY - Rated: M - English - Adventure/Sci-Fi - Chapters: 6 - Words: 48,205 - Reviews: 28 - Favs: 88 - Follows: 96 - Updated: 9/14 - Published: 8/24/2022 - Ozpin, J. Ironwood, Team RWBY, Team JNPR
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: 100 - Words: 1,419,674 - Reviews: 1977 - Favs: 812 - Follows: 769 - Updated: 9/14 - Published: 4/4/2021 - [Ben T., Yang X.L.] Gwen T., Ruby R.
An Osmosian Journey by Death Fury reviews
When Ben 10 recreated the Universe, he accidentally left the real Kevin in a Void. Kevin met a ROB and entered the Star Wars Universe. Join Kevin Ethan Levin as he ventures into the Galaxy Far Far Away.
Crossover - Star Wars & Ben 10 - Rated: T - English - Chapters: 4 - Words: 3,715 - Reviews: 10 - Favs: 40 - Follows: 47 - Updated: 9/13 - Published: 2/7/2023 - Kevin
Gus 12 by BlueKnight-X2 reviews
A watch-like device falls from space and attaches to Gus D. Porter and gives him the power to transform into different aliens. Now he, Luz Noeda, Willow, and others must work together to stop criminals in their summer vocation. (Lumity official)
Crossover - Ben 10 & Owl House - Rated: T - English - Adventure/Drama - Chapters: 17 - Words: 151,117 - Reviews: 43 - Favs: 17 - Follows: 13 - Updated: 9/13 - Published: 4/26/2023 - [Luz N., Amity B.] Willow, Gus
the blue hero of Hakoniwa Academy by Artzilla406 reviews
Zack orion, has arrived a place call sandbox academy, a world of something will surprise him and adapt, but what more surprise to his childhood friend medaka kurokami , Student Council president of this school
Crossover - Ben 10 & Medaka Box/めだかボックス - Rated: M - English - Adventure - Chapters: 3 - Words: 26,857 - Reviews: 1 - Favs: 14 - Follows: 12 - Updated: 9/13 - Published: 12/16/2021 - [Medaka K., OC]
Ben 10: Unbound by dvock67 reviews
Omnitrix, an awe inspiring device which allows it's user to transform into any and every species they wanted and even revive them in the face of certain death. In each and every universe , this device is wielded by a young man named Ben Tennyson except this one. However in the world cracks opened in the skies and monsters poured out of nowhere how long could he remain ordinary?
Crossover - Ben 10 & Manhwa/Korean Comics/만화 - Rated: T - English - Chapters: 1 - Words: 1,969 - Reviews: 1 - Favs: 1 - Follows: 1 - Published: 9/13
Alien Hero: Loki by MagmaKyuubi reviews
Izuku finds himself in the possession of the Omnitrix, and using the powers of the aliens within, his dreams are no longer just that. Entering Yuei Highschool, he will face numerous challenges in his journey to becoming a hero like no other. Between school life, hero training and villains, Izuku ahs his hands full. Slight AU, Pairings Undecided
Crossover - Ben 10 & My Hero Academia/僕のヒーローアカデミア - Rated: M - English - Adventure - Chapters: 2 - Words: 30,244 - Reviews: 9 - Favs: 41 - Follows: 48 - Updated: 9/13 - Published: 8/24 - Izuku M.
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: 4 - Words: 14,397 - Reviews: 33 - Favs: 123 - Follows: 154 - Updated: 9/11 - Published: 8/16/2023 - Bruce W./Batman, Damian W./Robin, Ben T., Prof. Paradox
Ben 10 Playtime by TopModelCollectorY2K reviews
After getting a letter saying that the employees of Playtime Co are 'still alive', Ben, Gwen and Max head to Playtime Co to get to the bottom of this. But, they soon learn that a more sinister force is at play. Ben 10 belongs to Man of Action and Cartoon Network Poppy Playtime belongs to Mob Entertainment
Crossover - Ben 10 & Poppy Playtime - Rated: M - English - Sci-Fi/Horror - Chapters: 6 - Words: 9,647 - Reviews: 9 - Favs: 22 - Follows: 21 - Updated: 9/11 - Published: 5/27 - Ben T., Gwen T., Max T., Poppy Playtime
Ben 10: Justice Incarnate by Firestorm808 reviews
Stranded in an unknown world, Ben must fulfill his destiny here and change history for the better. Cover image from Promsien. No harem.
Crossover - Ben 10 & Young Justice - Rated: T - English - Adventure/Humor - Chapters: 27 - Words: 103,629 - Reviews: 939 - Favs: 2,467 - Follows: 2,729 - Updated: 9/11 - Published: 3/23/2016 - Ben T.
Ben 10 Alternate Dimension Recharged by OuttaDaBlue
It's hero time! Ben and his friends have returned! Find out more about Ben's life as you read this story!
Crossover - X-overs & Ben 10 - Rated: M - English - Fantasy/Adventure - Chapters: 10 - Words: 20,308 - Favs: 1 - Follows: 1 - Updated: 9/9 - Published: 8/31 - Complete
Spooky, But Silly by GoldGuardian2418 reviews
When Ben's home alone, Phantom and his daughter Phanty visit him. What hilarious shenanigans will ensue? :) *Scooby-Doo And The Ghoul School/Ben 10 crossover* Done as a request for newbienovelistRD. :)
Crossover - Scooby Doo & Ben 10 - Rated: K+ - English - Friendship/Humor - Chapters: 1 - Words: 1,983 - Reviews: 1 - Favs: 2 - Follows: 2 - Published: 9/9 - Complete
Harry 10 by dannyrockon122 reviews
" It started when an alien device did what it did .Yeah we heard story a boy get an device that allow him to transform into alien forms. Well this isn't that story as in this one my omntrix was a toy from my favorite cartoon Ben 10 and it became real due to my magical and my life became a whole lot bizarre but I got my friends watching my back but it seem my past has came back to h
Crossover - Harry Potter & Ben 10 - Rated: T - English - Adventure - Chapters: 2 - Words: 3,809 - Reviews: 11 - Favs: 47 - Follows: 56 - Updated: 9/9 - Published: 6/3
Mass Effect Nega Ally by Mace sheperd reviews
Ben Tennyson was always a dour kid who thought everyone around him was a pain in the neck. Getting The Chaquetrix didn't change his misanthropic attitude. Now he finds himself in an alternate universe where intelligent machines are about to destroy all life, and if he doesn't want to die he'll be forced to cast his apathy aside and become a hero. NEGA BEN WITH CHAQUETRIX!
Crossover - Ben 10 & Mass Effect - Rated: M - English - Sci-Fi/Romance - Chapters: 1 - Words: 7,641 - Reviews: 1 - Favs: 7 - Follows: 6 - Published: 9/9 - Nega Ben, Jack
Black Bull's Hextuple Wreckers by Artzilla406 reviews
Long ago, a powerful and ruthless demon threaten the realm, humanity was in the brink of destruction. However a lone mage accompanied with eight magic knights, vanquish the demon with all their might. After their triumph the lone mage was crown the wizard king and the eight wizards disappeared, now four new wizards will step forward and take the path to become the wizard kings.
Crossover - Ben 10 & Black Clover/ブラッククローバー - Rated: M - English - Fantasy/Adventure - Chapters: 9 - Words: 153,236 - Reviews: 1 - Favs: 10 - Follows: 13 - Updated: 9/8 - Published: 2/21/2022
Ben 10 — An Omniverse of Choices and Consequences by UncoverTheStory reviews
This fan fiction reimagines the Ben10 multiverse, with Ben receiving the Omnitrix at 16. He discovers the multiverse and an impending Omniverse war, learning from manipulated shows of Ben Prime. Ben must choose between freedom and restriction, mastering his watch to prepare for the Multivere war, a prerequisite to compete in the OmniWar. Familiar elements. New twist. Not a rewrite.
Crossover - X-overs & Ben 10 - Rated: M - English - Mystery/Fantasy - Chapters: 6 - Words: 26,551 - Reviews: 3 - Favs: 7 - Follows: 9 - Updated: 9/8 - Published: 5/6 - Ben T.
The Loud 10: Omnitrix Team Adventures by Harriet546 reviews
Lincoln Loud, the Omnitrix Team and the Omnitrix itself are as heroic as always. Join Lincoln and the Omnitrix Team as they go through adventures with heroic friends, make new ones, and fight to save the world and other worlds like it. (Inspired by The Loud 10 by GokuSannin9000).
Crossover - Ben 10 & Loud House - Rated: K+ - English - Adventure/Humor - Chapters: 91 - Words: 423,444 - Reviews: 38 - Favs: 63 - Follows: 49 - Updated: 9/7 - Published: 6/26/2018 - Lincoln L., Luna L., OC, Ronnie Anne S.
And Then There Were Quirks by W.Alderson21 reviews
During a battle, Ben and Gwen Tennyson are sent through the Null Void into a new universe, one much... quirkier than their own. Follow the two cousins as they adapt to their new home and navigate the new challenges it brings, which may have more of an impact on both of them than they ever could have imagined. All together now... IT'S HERO TIME!
Crossover - Ben 10 & My Hero Academia/僕のヒーローアカデミア - Rated: T - English - Adventure - Chapters: 3 - Words: 29,623 - Reviews: 45 - Favs: 169 - Follows: 223 - Updated: 9/7 - Published: 5/24 - Ben T., Gwen T., 1-A Students, 1-B Students
Legend of 10 by Ripple247 reviews
On a fateful day in the park, a young man's life is changed, when seeing a shooting star fall from the night sky. Watch Ube rise to be a hero, though it's kinda hard to be a hero when your mom is the police chief, and the avatar mistakes me for a spirit. Will Ube can save the world or will he fall? OC x Asami.
Crossover - Ben 10 & Legend of Korra - Rated: T - English - Adventure/Sci-Fi - Chapters: 17 - Words: 142,938 - Reviews: 256 - Favs: 174 - Follows: 184 - Updated: 9/7 - Published: 4/14/2023 - OC, Korra, Chief Lin Beifong, Asami S.
Ben 10: WW2 by Julian 10 reviews
The second world war that the world has ever been in full swing, and it is up to the heroes of the Justice Society to put an end to the bloodshed once and for all. But in a twist of fate, a hero from the future comes to their aid. Will Ben 10 help the Justice Society win the war, or will they fail to stop an ancient enemy before he destroys the world? Find out in Ben 10: WW2.
Crossover - Ben 10 & Justice Society of America - Rated: M - English - Sci-Fi/Adventure - Chapters: 1 - Words: 17,200 - Reviews: 6 - Favs: 10 - Follows: 10 - Published: 9/5 - Ben T., OC
After the Many Dates Ben and Kim by pokemon fan 1991 reviews
You have saw all of Danny and Penny side of the story. Now it time for what Ben and Kim time to shine Cover art by ScarletGhostX
Crossover - Kim Possible & Ben 10 - Rated: K+ - English - Romance/Adventure - Chapters: 11 - Words: 21,546 - Reviews: 47 - Favs: 37 - Follows: 33 - Updated: 9/5 - Published: 1/24 - [Kim P., Ben T.]
Omni steel Invincible Titan by tim.romo15 reviews
Ben Tennyson has lost friends and family and after a recent battle with his enemies ends up in another universe princess IIana along with her protector's Lance and there robot friend Octus crash land on Earth after their home planet galaluna has fallen Maxwell McGrath and his buddy Steel are ready for action Mark Grayson will soon learn the truth about his father Omni man
Crossover - Ben 10 & Sym-Bionic Titan - Rated: T - English - Adventure/Sci-Fi - Chapters: 1 - Words: 388 - Reviews: 1 - Published: 9/5 - Ben T., Ilana L.
Miraculous: Tales of Ladybug, Catnoir, and the Shapeshifter by GojiraGodzillafan1 reviews
Paris, the city of love. Things used to be normal around this beautiful city, but then, darkness rises from unexpected shadows and now, the city needs hero's to save the day, and fortunately, three hero's will rise to the challenge, but one is unlike the others Disclaimer I own nothing in this fanfic except for my oc and His mom
Crossover - Ben 10 & Miraculous: Tales of Ladybug & Cat Noir - Rated: M - English - Romance/Adventure - Chapters: 7 - Words: 44,876 - Reviews: 2 - Favs: 23 - Follows: 21 - Updated: 9/5 - Published: 12/10/2023 - OC, Marinette D-C./Ladybug, Azmuth, Adrien A./Cat Noir
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