Ben 10 Crossovers
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Omni Justice by Anime Crossovers reviews
What happens when Ben 10, hero of heroes, is thrown into the Null Void but when he get's out, he finds himself in a complete new world. With its own heroes and villains.
Crossover - Ben 10 & Young Justice - Rated: T - English - Adventure/Supernatural - Chapters: 18 - Words: 128,940 - Reviews: 315 - Favs: 897 - Follows: 986 - Updated: 3h - Published: 8/7/2021 - Ben T., Artemis C./Artemis, Megan M./Miss Martian, Zatanna Z.
Another Universe, Yet A Family All The Same by GoldGuardian2418
The Tech/Fire/Undead Portal Master and her counterpart suddenly swap places and chaos ensues. Will they get back to their own timelines? Done as a request for robotman25. :)
Crossover - Ben 10 & Skylanders - Rated: K+ - English - Family/Friendship - Chapters: 1 - Words: 3,914 - Favs: 2 - Follows: 1 - Published: 5h - Complete
Freed By A Genuine Family by GoldGuardian2418
Though Trigon was defeated, Raven is worried he'll return. She seeks help at the Grant Mansion, but can the family there help Raven to be finally free of the monster she fears? *Ben 10/Teen Titans/Balan Wonderworld triple crossover*
Crossover - Teen Titans & Ben 10 - Rated: T - English - Family/Hurt/Comfort - Chapters: 3 - Words: 5,382 - Favs: 5 - Follows: 4 - Updated: 5h - Published: 10/17 - Raven, OC - Complete
Cosmic Hero: Alien X 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 has 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: 4 - Words: 56,028 - Reviews: 15 - Favs: 60 - Follows: 67 - Updated: 7h - Published: 8/24 - Izuku M.
Omni-Piece: Without Ben by The True Writer. Zerthin reviews
Yes, I am working on this as well. Yes, I have had this in my plans; Same Universe... just without Ben; it will be mainly one-shot chapters. Like this first one I hope you all enjoy it!
Crossover - One Piece & Ben 10 - Rated: K - English - Chapters: 1 - Words: 1,130 - Reviews: 1 - Favs: 3 - Follows: 2 - Published: 13h
Dragon Ball Super 10 by JerryAwesome24 reviews
Ben Tennyson gets sent to the world of Dragon Ball where he would meet Goku and his friends. Ben decided to help the Z-Fighters fight against new threats such as Aliens, Gods, and more until he will find a way home.
Crossover - Ben 10 & Dragon Ball Super - Rated: T - English - Sci-Fi/Adventure - Chapters: 4 - Words: 34,986 - Reviews: 55 - Favs: 79 - Follows: 88 - Updated: 13h - Published: 6/9/2023 - Ben T., Son Gohan, Son Goku, Caulifla
Superpowers? Nah, I Got Aliens by bakuda0901 reviews
What happens when you're tossed into one of the most dangerous worlds ever created and given the universe's ultimate multi-tool for survival? Armed with sarcasm, the power of friendship, and a need to survive, he's got to figure out how to save the world without getting killed in the process.
Crossover - Ben 10 & Worm - Rated: T - English - Chapters: 2 - Words: 6,502 - Reviews: 3 - Favs: 25 - Follows: 34 - Updated: 17h - Published: 10/29 - OC, Skitter, Panacea
We'll Carry On: An Ochako Omnitrix Story - Volume 1 by Transwiththeplans reviews
Ochako Uraraka finds herself unexpectedly taking on the mantle of the Omnitrix wielder from Ben Tennyson. As Ochako begins to explore the capabilities of the Omnitrix, she must also navigate the complex relationships and alliances, all while facing off against increasingly powerful enemies. Cover by @ZebraKnight1 on Instagram
Crossover - Ben 10 & My Hero Academia/僕のヒーローアカデミア - Rated: T - English - Adventure/Humor - Chapters: 124 - Words: 828,194 - Reviews: 170 - Favs: 234 - Follows: 221 - Updated: 19h - Published: 12/31/2022 - [Ochako U., Izuku M.] Ben T., Tenya I.
Jade 10 (Rewrite) by Inkaliber reviews
When the Book of Ages is altered, Ben finds himself giving up the Omnitrix to make everything else go back to normal. Now, years later with a power of his own and new family, he finds himself thrust back into the events of that fateful Summer. The only thing is that he's surrounded by girls and one of them has the Omnitrix instead of him. At least Jade Chan's cute. Multicrossover.
Crossover - Jackie Chan Adventures & Ben 10 - Rated: T - English - Adventure - Chapters: 6 - Words: 77,528 - Reviews: 4 - Favs: 18 - Follows: 20 - Updated: 10/29 - Published: 7/25 - [Jade C., Ben T.] Kevin, Max 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. {AU} {Beta by Masamune X23}. REWRITE IN PROGRESS.
Crossover - Ben 10 & Fairy Tail - Rated: M - English - Fantasy/Romance - Chapters: 8 - Words: 76,056 - Reviews: 477 - Favs: 833 - Follows: 895 - Updated: 10/29 - Published: 2/18/2023 - [Ben T., Lucy H., Juvia L., Erza S.]
Steven 10 the crystal knight by BlackSkull Universe reviews
In an alternate universe, Steven Universe had obtained the Omnitrix and uses it to help him protect Beach City and become a real Crystal Gem. But he'll be having some help from an outside force, the ex hero Ben Tennyson! special thanks to Omnitrixmaster23 of his help editing.
Crossover - Ben 10 & Steven Universe - Rated: M - English - Sci-Fi/Adventure - Chapters: 1 - Words: 112 - Reviews: 77 - Favs: 77 - Follows: 67 - Updated: 10/29 - Published: 10/29/2019 - Ben T., Steven U., Peridot, Jasper
Jaune 10 by Arcverse
Instead of forging the documents, Jaune Arc ran away from home a couple months before the new year at Beacon began. Then he found a watch that literally crashed from the heavens in front of him. Now armed with the greatest weapon in the universe, how will he change the world of Remnant? Rated T for now.
Crossover - Ben 10 & RWBY - Rated: T - English - Adventure/Sci-Fi - Chapters: 1 - Words: 4,026 - Favs: 17 - Follows: 16 - Published: 10/29 - [Jaune A., Velvet S.] Team JNPR, Team RWBY
Digital Nexus: Book 3 - The Ben 10 Code by joeyblast
So, as usual, things don't go according to plan on takeoff, and our heroes crash into the world of Ben 10. (This one will be shorter than usual due to unexpected developments in the process of making this - namely "Nobodies") How long will it take for shit to hit the fan this time? Let's find out.
Crossover - Kingdom Hearts & Ben 10 - Rated: M - English - Adventure/Sci-Fi - Chapters: 1 - Words: 5,730 - Published: 10/28 - OC, Ben T.
Ben 10 Switch On by CMXB reviews
A new Fourze has arrived at the world of Ben 10 with a mission to be a new hero of the universe while befriending anyone he meets, what adventures will he do only time will tell now, Uchu Kita.
Crossover - Ben 10 & Kamen Rider - Rated: T - English - Adventure/Sci-Fi - Chapters: 83 - Words: 112,490 - Reviews: 460 - Favs: 214 - Follows: 212 - Updated: 10/28 - Published: 12/22/2019 - [Julie Y., OC] Gentaro K./Fourze
Dinosaurs and Aliens by jboy44 reviews
A twist of Fate, and Max's parents were taken away, No with no family he has been adopted by the Tennyson family. Max has his dinosaurs, but his big brother has his aliens. With his new family Max is about to set out to stop prehistoric and other worldly evil, and save his birth parents from their kidnappers.
Crossover - Ben 10 & Dinosaur King - Rated: M - English - Adventure/Supernatural - Chapters: 44 - Words: 99,172 - Reviews: 119 - Favs: 27 - Follows: 24 - Updated: 10/28 - Published: 4/27 - [Ben T., OC] [Zoe D., Max T.]
BEN 10 vs THE THING by skullmuffin reviews
Ben Tennyson travels to Enceladus to assist a research team in uncovering the secrets of life on the icy moon, but instead they uncover secrets that should have best been kept on ice.
Crossover - Ben 10 & The Thing - Rated: M - English - Sci-Fi/Horror - Chapters: 2 - Words: 4,949 - Reviews: 3 - Favs: 3 - Follows: 1 - Published: 10/27 - Ben T., Azmuth
The Hunter's Monomyth by i4md347h reviews
After losing to the strongest hero, Garou woke into a world so alien yet so similar. Trapped inside another, he must set out with unlikely companions to uncover the secrets of his transmigration into a world where aliens fill the stars and evil from multiple timelines endanger the universe in his journey down the path of self-discovery. By the author of The Hunter Amongst Villains.
Crossover - Ben 10 & One Punch Man/ワンパンマン - Rated: T - English - Adventure/Supernatural - Chapters: 9 - Words: 87,991 - Reviews: 246 - Favs: 718 - Follows: 720 - Updated: 10/27 - Published: 9/25/2019 - Gwen T., Kevin, Max T., Garou
Avengers: Agent-10 by Masamune X23 reviews
After a few years of peacefulness Ben Tennyson engages his nemesis in another battle for the fate of the universe but their clash results in him ending up in a world where heroes and villains constantly battle and aliens aren't citizens on earth. Will Ben be able to change this new world for the better like he did on his earth or will this world's greater evils bring him down?
Crossover - Ben 10 & Avengers: Earth's Mightiest Heroes - Rated: M - English - Sci-Fi/Adventure - Chapters: 31 - Words: 343,782 - Reviews: 912 - Favs: 1,213 - Follows: 1,250 - Updated: 10/27 - Published: 1/1/2019
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: 20 - Words: 47,806 - Reviews: 10 - Favs: 26 - Follows: 28 - Updated: 10/27 - Published: 8/2 - [Ben T., OC] Crona
The Invincible Omnigirl! by Vgn Golley reviews
Marceline 'Marcy' Grayson is a Viltrumite/Human Hybrid who was born from Nolan and Debbie Grayson and grew up to be a kind and innocent girl who wants to do some good in the world and then comes across the Omnitrix, a mysterious alien watch with the power to allow her to transform into a multitude of aliens. Watch out, world, because when lives are on the line, It's Hero Time!
Crossover - Ben 10 & Invincible - Rated: M - English - Adventure/Sci-Fi - Chapters: 5 - Words: 125,000 - Reviews: 29 - Favs: 79 - Follows: 61 - Updated: 10/26 - Published: 3/20 - Charmcaster/Hope, Mike M., Cooper D., OC
Aliens and Fairies are real? by ElioLikesToWrite reviews
Ben Tennyson never really lived a good life but when he's betrayed. He takes everything he holds near and dear to his heart and leaves for the omniverse. where he ends up in Gardenia meeting a girl called Bloom who he quickly grows close to. When she invites him to the park where they first met to celebrate, something happens that would change their lives in a way neither expected.
Crossover - Winx Club & Ben 10 - Rated: M - English - Romance/Adventure - Chapters: 9 - Words: 43,825 - Reviews: 4 - Favs: 31 - Follows: 32 - Updated: 10/26 - Published: 10/12 - [Winx Club, Ben T.] Trix, Specialists
Ben 10 x RWBY: Of Gemstones and Watches by Transwiththeplans reviews
Ben Tennyson meets Ruby Rose during his summer break, and picks up both the Omnitrix and a thrill for action. Along the way, Ben discovers new alien forms, develops new techniques to use in battle, and a blossoming romance, while also forging close bonds with his new friends. But can he and his friends handle being thrust into a conflict between good and evil? (Cover by elmike)
Crossover - Ben 10 & RWBY - Rated: T - English - Adventure/Sci-Fi - Chapters: 212 - Words: 1,603,174 - Reviews: 610 - Favs: 767 - Follows: 752 - Updated: 10/26 - Published: 12/26/2018 - [Ben T., Ruby R.] OC
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: 30 - Words: 119,034 - Reviews: 1007 - Favs: 2,509 - Follows: 2,774 - Updated: 10/26 - Published: 3/23/2016 - Ben T.
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: 8 - Words: 32,730 - Reviews: 3 - Favs: 10 - Follows: 13 - Updated: 10/26 - Published: 5/6 - Ben T.
KoBENi 10 by Anime0CC0Manga reviews
The Saddest Cry Baby In The World Gets The Most Powerful Weapon Ever (I Own Nothing)
Crossover - Chainsaw Man/チェンソーマン & Ben 10 - Rated: K - English - Horror/Humor - Chapters: 24 - Words: 54,687 - Reviews: 77 - Favs: 94 - Follows: 94 - Updated: 10/25 - Published: 2/5 - Kobeni, Denji, Aki, Power
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