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Teens Seek the Ring by johnemilio.apostoli
Kim Possible and Ben Tennyson are in the Lands Between, where they have to adapt, fight, and work together to hopefully do the impossible: becoming dual Elden Lords.
Crossover - Kim Possible & Ben 10 - Rated: T - English - Fantasy/Adventure - Chapters: 1 - Words: 1,238 - Published: 57m - Kim P., Ben T.
The Alien Hero by ninjastorm95 reviews
When the destroyed Omnitrix falls into the ocean to repair itself, one boy is destined to be the world's greatest hero. On this planet and more!
Crossover - Ben 10 & My Hero Academia/僕のヒーローアカデミア - Rated: M - English - Adventure/Sci-Fi - Chapters: 11 - Words: 80,784 - Reviews: 78 - Favs: 240 - Follows: 288 - Updated: 5h - Published: 11/9/2020
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: 104 - Words: 1,476,006 - Reviews: 2035 - Favs: 818 - Follows: 776 - Updated: 13h - Published: 4/4/2021 - [Ben T., Yang X.L.] Gwen T., Ruby R.
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: 1 - Words: 1,803 - Favs: 3 - Follows: 3 - Published: 16h - Raven, OC
A Mad And Curious Meeting by GoldGuardian2418 reviews
Three boys out on an adventure get a bit more than what they bargained for when they end up at the Grant Mansion by accident. Written alongside with Redbat132. :)
Crossover - Ben 10 & Batman: The Brave and the Bold - Rated: K+ - English - Adventure/Friendship - Chapters: 9 - Words: 16,218 - Reviews: 12 - Favs: 6 - Follows: 5 - Updated: 17h - Published: 11/13/2023 - Complete
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: 8 - Words: 37,172 - Reviews: 1 - Favs: 17 - Follows: 19 - Updated: 21h - Published: 10/12 - [Winx Club, Ben T.] Trix, Specialists
Ben 10 & She-Ra Heroes of Power by Hero Central reviews
An investigation into space time anomalies lands Ben Tennyson and his partner Rook Blonko on the mysterious and magical planet of Etheria, they cross paths with Adora and her friends and choose to do what they can to free Etheria from the tyrannical grip of the Horde. Its Hero time,For the Honour of Greyskull!
Crossover - Ben 10 & She-Ra and the Princesses of Power - Rated: T - English - Friendship/Supernatural - Chapters: 30 - Words: 455,695 - Reviews: 763 - Favs: 468 - Follows: 459 - Updated: 10/17 - Published: 10/18/2020 - Ben T., Rook, Adora/She-Ra, Princess Glimmer
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: 122 - Words: 798,883 - Reviews: 168 - Favs: 233 - Follows: 219 - Updated: 10/17 - Published: 12/31/2022 - [Ochako U., Izuku M.] Ben T., Tenya I.
Ben 10: Earth's Mightiest Heroes by Firestorm808 reviews
Ben is sent to the world of Earth's Mightiest Heroes! With political and cosmic danger on the rise, it's up to Ben and the Marvel heroes to set things straight. (Tying up loose plot holes. Connecting various other Marvel shows. Cover image from Promsien.)
Crossover - Ben 10 & Avengers: Earth's Mightiest Heroes - Rated: T - English - Adventure/Humor - Chapters: 29 - Words: 108,835 - Reviews: 721 - Favs: 1,313 - Follows: 1,391 - Updated: 10/17 - Published: 4/21/2018 - 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. {AU} REWRITE IN PROGRESS.
Crossover - Ben 10 & Fairy Tail - Rated: M - English - Fantasy/Romance - Chapters: 5 - Words: 42,237 - Reviews: 461 - Favs: 810 - Follows: 876 - Updated: 10/16 - Published: 2/18/2023 - [Ben T., Lucy H., Juvia L., Erza S.]
10 New Puppets by Anime0CC0Manga reviews
When A Certain Royal Guard Kitty Cat Gets The Most Powerful Weapon Ever (I Own Nothing)
Crossover - Hunter X Hunter & Ben 10 - Rated: K - English - Adventure/Humor - Chapters: 3 - Words: 6,714 - Reviews: 2 - Favs: 10 - Follows: 11 - Updated: 10/16 - Published: 7/13 - Neferpitou, Komugi, King Meryem
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: 23 - Words: 60,730 - Reviews: 437 - Favs: 274 - Follows: 254 - Updated: 10/15 - Published: 1/1/2020 - [Lincoln L., OC] Vilgax, Albedo
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. I do not Own Ben 10 and Mass effect. They are owned by they respected properties of Man of Action and Bioware. Please support the official release.
Crossover - Ben 10 & Mass Effect - Rated: T - English - Sci-Fi/Romance - Chapters: 23 - Words: 70,522 - Reviews: 31 - Favs: 76 - Follows: 80 - Updated: 10/15 - Published: 2/15 - [Ben T., Miranda L.] Ship, Shepard
Demonios x Aliens by LegoBigChill reviews
(Crossover My Wife is a Demon Queen x Ben 10) Después de haber salvado a la tierra una vez más el joven Tennyson decidió que ya era hora de darse un lujo más haya de unos Smoothies de victoria, comprando así en pueblo bajo un anillo bastante llamativo, pero para desconocimiento de Ben este anillo lo llevaría a una nueva aventura.
Crossover - Ben 10 & ManHua/Chinese Comics/漫画 - Rated: M - Spanish - Romance/Fantasy - Chapters: 5 - Words: 35,504 - Reviews: 1 - Favs: 16 - Follows: 20 - Updated: 10/15 - Published: 4/5 - Ben T.
Ben & The League by Omnifictionwriter reviews
A mysterious and yet familiar person arrives to the watch tower the justice league finds he known as the hero of heroes but he is know to them and yet not known to the league find out what happened
Crossover - Ben 10 & Young Justice - Rated: M - English - Sci-Fi/Adventure - Chapters: 4 - Words: 14,047 - Reviews: 4 - Favs: 9 - Follows: 11 - Updated: 10/14 - Published: 9/16 - Ben T.
Priestess 10 - Christmas Boogaloo by SilverSoulmmc reviews
Yukiko doesn't wish for a lot, but what she does want doesn't seem like much to others. All she wants is to celebrate her joint birthday with Ben and Gwen, and to have the Tennysons enjoy their first time in Inaba. Unfortunately, Yukiko is unaware that the holidays are known for opening up old awkward family wounds. Oh, and rouge alien attacks too.
Crossover - Ben 10 & Persona Series - Rated: T - English - Family/Drama - Chapters: 10 - Words: 59,448 - Reviews: 32 - Favs: 46 - Follows: 49 - Updated: 10/14 - Published: 1/16 - Ben T., Gwen T., Max T., Yukiko A.
Heroics with Galvanic Daemons by alexandershoeontoe
Our beloved hero, Ben Tennyson, after a clash with the mutant Galvanic Mechamorph, Malware, ends in an unexpected fusion, trapping Malware inside the Omnitrix and leaving Ben scarred. And just when Ben thought his hero days were behind him, he's thrust into another dimension alongside a mysterious alien ally, in a world overflowing with superpowers and endless mystery in sight!
Crossover - Ben 10 & My Hero Academia/僕のヒーローアカデミア - Rated: M - English - Western/Supernatural - Chapters: 2 - Words: 4,254 - Favs: 9 - Follows: 12 - Published: 10/14 - Ben T., Malware
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: 41 - Words: 93,348 - Reviews: 112 - Favs: 27 - Follows: 24 - Updated: 10/14 - Published: 4/27 - [Ben T., OC] [Zoe D., Max T.]
Transformers: Omni Prime by Leopardman reviews
What would happen if Ben, Gwen, Kevin, Julie, and Ship ended up in the Prime universe? Let’s find out.
Crossover - Transformers/Beast Wars & Ben 10 - Rated: T - English - Adventure/Sci-Fi - Chapters: 4 - Words: 11,093 - Reviews: 10 - Favs: 58 - Follows: 74 - Updated: 10/13 - Published: 7/25 - Ben T., Julie Y., Optimus Prime
Alien Blade Rebellion by Harem Lover 26 reviews
What would happen if Ben finds the Omnitrix on he sword and sorcery world of Queens Blade? Would he use its power to fight the monster of that world and beyond or join a rebellion against the queen. Ben/harem and rated M for violence and everything Queens blade is know for.
Crossover - Ben 10 & Queen's Blade/クイーンズブレイド - Rated: M - English - Adventure - Chapters: 25 - Words: 158,112 - Reviews: 326 - Favs: 343 - Follows: 309 - Updated: 10/13 - Published: 8/22/2014
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: 22 - Words: 51,636 - Reviews: 73 - Favs: 90 - Follows: 91 - Updated: 10/13 - Published: 2/5 - Kobeni, Denji, Aki, Power
Rise of G-Morph and The Amazing Spider-Man by Amit Barabi reviews
Gwen Stacy is chosen to become the successor of Ben Tennyson. Read and enjoy her origin as the heroine, G-Morph, and her ever-growing adventure with her arachnoid boyfriend. Mainly based on The Amazing Spider-Man movies and the MCU, but has some original ideas. Peter and Gwen pairing. Inspired by The Incredible Muffin. Originally titled "Wristed Heroes". Complete.
Crossover - Spider-Man & Ben 10 - Rated: T - English - Adventure/Sci-Fi - Chapters: 19 - Words: 152,458 - Reviews: 144 - Favs: 93 - Follows: 94 - Updated: 10/13 - Published: 8/13/2020 - [Peter P./Spider-Man, Gwen S.] Eunice - Complete
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: 17 - Words: 41,141 - Reviews: 10 - Favs: 24 - Follows: 26 - Updated: 10/13 - Published: 8/2 - [Ben T., OC] Crona
Peanut Saga by McPhoenix David reviews
Gaining a powerful 'quirk' all of a sudden is not always good. Izuku learns it in the hard way. In which, Izuku becomes a Magical Girl but with a big flaw in the power— death. Not a 'fluffy' story. Huge world-building, canon-divergence.
Crossover - My Hero Academia/僕のヒーローアカデミア & Ben 10 - Rated: T - English - Mystery/Sci-Fi - Chapters: 6 - Words: 21,087 - Reviews: 23 - Favs: 28 - Follows: 37 - Updated: 10/12 - Published: 7/14
The Alien Hunt by I craft experiences reviews
Ben Tennyson finds himself tossed in a new adventure, within a new universe. A dark and brutal world of monsters, magic and war. 3 years after his battle with Maltruant, far from home with only flashes of an ashen-haired girl as Ben's only clue why. Little does he know, his fate is now intertwined with a certain Witcher and the girl he searches for.
Crossover - Witcher & Ben 10 - Rated: K+ - English - Supernatural/Adventure - Chapters: 3 - Words: 28,296 - Reviews: 16 - Favs: 65 - Follows: 66 - Updated: 10/12 - Published: 9/21 - Geralt of Rivia, Ben T., Ciri, Triss Merigold
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