Ben 10 Crossovers
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Justice x 10! by DrKhronicler1999 reviews
Celebrating the defeat of Maltruant and exploring the newly created universe, Ben soon finds that his victory came at a great cost. Space-time distortions have begun appearing across the multiverse, one of which has whisked Ben out of his universe and into a world filled with super-powered heroes! Can Ben adapt to his new life and find a way back home, or remain trapped?
Crossover - DC Superheroes & Ben 10 - Rated: T - English - Romance/Sci-Fi - Chapters: 1 - Words: 1,599 - Reviews: 4 - Favs: 19 - Follows: 25 - Published: 3/27 - [Kara Z./Supergirl, Ben T.] C. Kent/Kal-El/Superman, Prof. Paradox
Demon school, Meet the agent of Chaos by Artzilla406 reviews
Koan, ryuko and the group has finished Honnōji Academy and defeated their enemy. But their next school is fill with demons along their new friends. irumi sukuzi, the step grandaughter of a demon. Now the agent of choas will make the demon school goes upside down and face old and new faces of enemies return"
Crossover - Ben 10 & Welcome to Demon School! Iruma-kun/魔入りました!入間くん - Rated: M - English - Supernatural - Chapters: 4 - Words: 55,842 - Reviews: 3 - Favs: 12 - Follows: 13 - Updated: 3/27 - Published: 5/13/2021
Rise of The Ultimates by StormWolf150 reviews
What if four young heroes were forced to move from their hometown? That is what happens to Ben Tennyson, Danny Fenton, Kim Possible and Jake Long, who are all relocated to Tremorton at the age of eleven. What if they were to become friends? What if they become a team down the road? How will a certain robot girl react when she comes into the picture?
Crossover - Danny Phantom & Ben 10 - Rated: T - English - Adventure/Drama - Chapters: 1 - Words: 965 - Reviews: 7 - Favs: 15 - Follows: 13 - Published: 3/27 - Danny F., Ben T.
Dragon Ball: Omniversal Deviation by Camdor reviews
Ben Tennyson is a hero. No doubts about that. He has fought his worlds gods and demons. But how will he cope against another realitys?
Crossover - Dragon Ball Z & Ben 10 - Rated: T - English - Adventure - Chapters: 11 - Words: 12,167 - Reviews: 14 - Favs: 51 - Follows: 44 - Updated: 3/27 - Published: 9/23/2020 - Ben T.
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: 181 - Words: 1,388,339 - Reviews: 535 - Favs: 701 - Follows: 678 - Updated: 3/27 - Published: 12/26/2018 - [Ben T., Ruby R.] OC
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: 34 - Words: 208,779 - Reviews: 47 - Favs: 54 - Follows: 50 - Updated: 3/26 - Published: 9/21/2023 - Alex, Jerry, Ben T.
The Hiccup Cup Group Project by PKMN37 reviews
This is an anthology story of some of our favorite characters given the hiccups through a mysterious, shape-shifting chalice. The Hiccup Cup can take the form of any cup, from plastic to its original iron form. Its origins are unknown but some believe that it was created by a hiccup-loving wizard of a faraway kingdom to give the women of the town hiccups at will.
Crossover - Ben 10 & Pokémon - Rated: M - English - Chapters: 44 - Words: 159,059 - Reviews: 7 - Favs: 14 - Follows: 8 - Updated: 3/26 - Published: 5/29/2019 - Ash K./Satoshi, Misty/Kasumi, Gwen T., Julie Y.
KoBENi 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: 8 - Words: 10,043 - Reviews: 21 - Favs: 36 - Follows: 36 - Updated: 3/26 - Published: 2/5 - Kobeni, Kevin, Denji, Makima
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: 10 - Words: 87,155 - Reviews: 92 - Favs: 103 - Follows: 105 - Updated: 3/26 - Published: 10/28/2021 - [Lincoln L., OC] Vilgax, The Loud Sisters
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
Crossover - Kim Possible & Ben 10 - Rated: K+ - English - Romance/Adventure - Chapters: 5 - Words: 9,414 - Reviews: 16 - Favs: 21 - Follows: 19 - Updated: 3/25 - Published: 1/24 - [Kim P., Ben T.]
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: 3 - Words: 91,683 - Reviews: 35 - Favs: 62 - Follows: 68 - Updated: 3/25 - Published: 10/10/2023 - [Caitlyn, Vi] Ben T., Gwen
Mass Effect 10 Ben Second Chance by benguin reviews
Here is a world for both Ben 10 and mass effects Fans, but basically it like any story where ben world is gone and lives in another universe to move on from the pain
Crossover - Ben 10 & Mass Effect - Rated: T - English - Sci-Fi/Romance - Chapters: 13 - Words: 37,295 - Reviews: 26 - Favs: 38 - Follows: 42 - Updated: 3/25 - Published: 2/15 - [Ben T., Miranda L.] Ship, Shepard
Omniversal Trail by Mechafreak119 reviews
Lost and confused after his fight with Malware, a young Ben Tennyson must find a way back home. Perhaps he can get a ride with these strangers who ride a train. Wait, what was that last part?
Crossover - Ben 10 & Honkai: Star Rail - Rated: T - English - Adventure/Sci-Fi - Chapters: 1 - Words: 1,901 - Reviews: 3 - Favs: 22 - Follows: 31 - Published: 3/24 - Ben T., March 7th, Stelle, Clara
Robin 10 by Epiclot214 reviews
(Cover art by Framraw) After years of being Robin, Dick Grayson decided to go on a trip to find himself. Along the way, he meets the Tennyson family trying to enjoy their summer vacation, when suddenly, one of them finds a strange watch that transforms him into different aliens. Now, Robin must accompany the Tennyson family as they fight threats from both Earth and outer space.
Crossover - DC Superheroes & Ben 10 - Rated: K+ - English - Sci-Fi/Adventure - Chapters: 3 - Words: 13,043 - Reviews: 53 - Favs: 100 - Follows: 79 - Updated: 3/24 - Published: 2/5/2023 - D. Grayson/Robin/Nightwing, Starfire, Ben T., Gwen T.
Ben 10: Afea Alien by Julian 10 reviews
Ben 10, the greatest hero in the universe, has just lost his family. Now, he is transported into another universe full of magic and heroes. Now, it's up to him and a group of heroes called the Winx Club to save the magic dimension from any threat that comes their way.
Crossover - Winx Club & Ben 10 - Rated: T - English - Chapters: 1 - Words: 11,426 - Reviews: 8 - Favs: 20 - Follows: 24 - Published: 3/24 - Bloom, Stella, Flora, Ben T.
Ultimate ga Kill! by MegaRdaniels reviews
Ben Tennyson never seem to run out of crazy adventures, but this has to be one of his craziest yet. When he is discovered by Night Raid, a group of assassins fighting for the Revolutionary Army, Ben must decide whether to join them or become a soldier for the corrupt Imperial Capital.
Crossover - Ben 10 & Akame ga Kiru/アカメが斬る - Rated: T - English - Adventure/Sci-Fi - Chapters: 60 - Words: 167,400 - Reviews: 967 - Favs: 771 - Follows: 729 - Updated: 3/23 - Published: 11/1/2016 - [Ben T., Akame, Sheele] Esdeath
Gus 12 by BlueKnight-X2 reviews
A watch-like device falls from space and attaches to Gus Dalton 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.
Crossover - Ben 10 & Owl House - Rated: T - English - Adventure/Drama - Chapters: 13 - Words: 111,495 - Reviews: 33 - Favs: 15 - Follows: 10 - Updated: 3/22 - Published: 4/26/2023 - Luz N., Eda, Willow, Gus
Ben 10: Hero Force by DBZpower197 reviews
It had now been 3 years since Ben took a chance at a normal life. However, history had a tendency to repeat and life had a tendency to be unfair. With the news of someone person putting in a good word for him at UA, Ben would once again don the Omnitrix and face the challenges ahead all the while having one question in mind: "Could he meet the legacy of that watch once again?"
Crossover - Ben 10 & My Hero Academia/僕のヒーローアカデミア - Rated: T - English - Adventure/Sci-Fi - Chapters: 37 - Words: 443,713 - Reviews: 679 - Favs: 890 - Follows: 984 - Updated: 3/22 - Published: 4/19/2021 - Ben T., Izuku M., Momo Y., 1-A Students
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: 4 - Words: 33,741 - Reviews: 24 - Favs: 57 - Follows: 64 - Updated: 3/21 - Published: 3/9
Troublesome Alien Heroes by Mrotrax reviews
Collab with Knightmare Lord, BNHA-Ben 10-Urusei Yatsura crossover. When a strange watch lands beside him and his best friend Shinobu, Izuku's dreams of heroism may become a reality, provided he keeps said watch a secret and can deal with a horde of upcoming alien vistors, not all of whom are friendly or come in peace! Rating may change, read and review?
Crossover - Ben 10 & My Hero Academia/僕のヒーローアカデミア - Rated: T - English - Sci-Fi/Humor - Chapters: 1 - Words: 1,867 - Reviews: 3 - Favs: 21 - Follows: 15 - Published: 3/21 - Prof. Paradox, Izuku M.
Jason 10: Hero of the Universe (E-10) by Chadw996 reviews
While working under Max Tennyson, Jason comes in contact with an alien device that grants it's user the power to transform into aliens, The Omnitrix. He begins fighting crime and anyone after the power he now has. Slowly becoming the greatest hero in the universe. (Harem) [Dc/Young Justice, Ben 10, Transformers, and maybe more crossover]
Crossover - Young Justice & Ben 10 - Rated: M - English - Adventure/Humor - Chapters: 6 - Words: 32,726 - Reviews: 2 - Favs: 36 - Follows: 31 - Updated: 3/21 - Published: 4/19/2023 - Jason T./Robin II, Gwen T.
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: 1 - Words: 16,335 - Reviews: 13 - Favs: 32 - Follows: 23 - Published: 3/20 - Charmcaster/Hope, Mike M., Cooper D., OC
Planet Olympus by My Little Demigodly Brain reviews
When the worlds of Percy Jackson and Ben 10 collide, crazy stuff is bound to happen. Join Percy, Annabeth, Ben and Gwen on an incredible journey which might just question everything they've known till now.
Crossover - Percy Jackson and the Olympians & Ben 10 - Rated: T - English - Adventure/Mystery - Chapters: 4 - Words: 14,045 - Reviews: 15 - Favs: 36 - Follows: 45 - Updated: 3/19 - Published: 6/27/2021 - Percy J., Annabeth C., Ben T., Gwen T.
My Alien Hero: Izuku 10 by zerobound reviews
Everyone knows Izuku Midoriya when he got his Quirk One For All from All Might to become the greatest hero. In this one, he returns that special Quirk and he is now the wield of the Omnitrix. Rate T later M
Crossover - Ben 10 & My Hero Academia/僕のヒーローアカデミア - Rated: T - English - Adventure/Sci-Fi - Chapters: 6 - Words: 10,809 - Reviews: 8 - Favs: 33 - Follows: 37 - Updated: 3/18 - Published: 10/8/2023 - Azmuth, Izuku M., 1-A Students
It's Saiyan Time! (Ben 10 SI) by Isaiah Jager reviews
Sup, this is Cal. I'm your average Joe except that I died and didn't know till this guy call ROB told me. I can choose a new life to live in any universe. I figured, if I'm going to enjoy this, I better be a pretty powerful dude. But not too powerful, well maybe have a few perks. Look out world, a saiyan is here to be a true badass. (Based on a Ben 10 cyoa, more than 1 crossover)
Crossover - Ben 10 & Dragon Ball Z - Rated: T - English - Adventure - Chapters: 4 - Words: 7,333 - Reviews: 8 - Favs: 26 - Follows: 39 - Updated: 3/18 - Published: 3/4 - Ben T., Gwen T., Max T., OC
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