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Defend Earth, Defend the Universe by Serene Kumquat reviews
Noah Diaz was just trying to take care of his mom, brother, and the last gifts from his father—his Umbreon and Pikachu. Money was enough of a problem. He did not expect alien robots. TransformersxPokémon crossover.
Crossover - Pokémon & Transformers - Rated: T - English - Adventure - Chapters: 2 - Words: 4,664 - Reviews: 2 - Favs: 1 - Follows: 1 - Updated: 9/8 - Published: 9/4
Haven by Autobot2001
Despite how little he knows about Jamie, Sideswipe thinks she and Sunstreaker can be friends and help each other. After Sunstreaker agrees it's a good idea, there are many challenges and complications that may result in Jamie and others hating Sunstreaker. Will Sunstreaker succeed in getting Jamie to be his friend?
Crossover - Transformers/Beast Wars & Transformers - Rated: M - English - Family/Hurt/Comfort - Chapters: 35 - Words: 42,482 - Favs: 4 - Follows: 5 - Updated: 9/5 - Published: 6/1 - Crosshairs, Sunstreaker, Drift, OC
Star Wars Transformers : Attack of the Clones by austinnewton9512 reviews
What if the Autobots and Decipticons carried their war to a galaxy far far away? Witness what happens when the Republic and the the Confederacy of Independent Systems get involved in the Cybertronian Civil war
Crossover - Star Wars & Transformers - Rated: K+ - English - Adventure/Sci-Fi - Chapters: 11 - Words: 12,372 - Reviews: 25 - Favs: 30 - Follows: 31 - Updated: 9/2 - Published: 2/26/2018 - Anakin Skywalker, Obi-Wan K., Optimus Prime, Bumblebee
Hurt: A Transformers & Pokémon Crossover by Ash Ketchum UK Champion reviews
Cross posted on AO3: Lance Jay Lennox is a fifteen year old Pokémon trainer from the city of Los Angeles California. Follow his Pokémon journey. Set in his POV, don't forget to read and review
Crossover - Pokémon & Transformers - Rated: T - English - Hurt/Comfort/Friendship - Chapters: 8 - Words: 18,258 - Reviews: 14 - Favs: 5 - Follows: 4 - Updated: 9/1 - Published: 4/24 - OC
Alita and The Last Prime by MultiverseSpider-Man reviews
Over a year after she lost Hugo, Alita has been doing her best to keep moving forward. Then she's thrown into new adventures when a warrior from another world named Optimus Prime comes and warns about an incoming threat that could destroy all of humanity. (Cybertronians in this story are human like cyborgs like Alita but with different technology) Optimus Prime x Alita
Crossover - Transformers & Alita: Battle Angel - Rated: T - English - Sci-Fi/Romance - Chapters: 1 - Words: 667 - Reviews: 1 - Follows: 1 - Published: 8/31
Bleeding Humans by Sunswipe reviews
Katherine Lennox is sent to live with her uncle and cousin up in Forks. She quickly uncovers the Cullens' secret as well as the wolves and becomes close to them, but will she turn to them for help when parts of her darker past begin to come unveiled? Set in Eclipse and between Transformers and ROTF. DISCONTINUED
Crossover - Twilight & Transformers - Rated: T - English - Family/Supernatural - Chapters: 39 - Words: 93,202 - Reviews: 50 - Favs: 103 - Follows: 98 - Updated: 8/30 - Published: 1/31/2015 - [Sam W., OC] [Bella, Edward]
Hamster and Gretel Transformers by chcu1297
What if the Improbable Duo were the Transformers allies instead Sam. Crazy adventures ensues.
Crossover - Transformers & Hamster & Gretel - Rated: M - English - Humor/Adventure - Chapters: 3 - Words: 8,618 - Published: 8/29 - W. Lennox, Bumblebee, Optimus Prime
Captain Holmes (COMPLETE) by Sboyle92 reviews
Ruby Holmes is not like her brothers in career paths. Instead of becoming a consulting detective, or controlling the government, or whatever the other two brothers do, she decided to join the army. What happens when she is in Qatar the day it is destroyed in the blink of an eye? Will she ever get home to her family?
Crossover - Transformers & Sherlock - Rated: T - English - Chapters: 8 - Words: 11,585 - Reviews: 2 - Favs: 13 - Follows: 9 - Published: 8/29 - OC - Complete
Sunstreaker's Charge by Autobot2001
Lily meets the Autobots and is immediately told to stay away from Sunstreaker. She feels sorry for him and wants to befriend him. This changes after she's kidnapped. Sunstreaker doesn't like how terrified Lily is of him. Can he repair the damage done and befriend her?
Crossover - Transformers/Beast Wars & Transformers - Rated: T - English - Friendship/Hurt/Comfort - Chapters: 74 - Words: 89,019 - Favs: 7 - Follows: 6 - Updated: 8/25 - Published: 3/6 - Crosshairs, Sideswipe, Sunstreaker, Drift - Complete
Developed Dimesions(Reupload) by silversliced-rain
So someone kindly asked me to repost this story, so to that one person, here you go. It's now all now one chapter because for one I'm lazy and didn't feel like separating the chapters again and for two Fanfiction was being weird. Also I don't remember what the original summary was so...
Crossover - Transformers/Beast Wars & Transformers - Rated: K+ - English - Chapters: 1 - Words: 13,854 - Favs: 1 - Follows: 1 - Published: 8/22
Harry Potter: LifeSpark by LadyLament reviews
Harry just wanted to take his mind off that night, fixing things helped him. He didn't expect any of them to come to life, he didn't expect them to call him Maker and he didn't expect to gain a family of robots. He definitely wasn't expecting his summer to go the way it did, but hey it was better than being stuck in his room the entire time. Incomplete, until muse says otherwise.
Crossover - Harry Potter & Transformers - Rated: T - English - Chapters: 22 - Words: 42,015 - Reviews: 310 - Favs: 1,445 - Follows: 1,630 - Updated: 8/22 - Published: 10/15/2018 - Harry P.
Initiative by LuvMiddleEarth reviews
A girl, mutated back in the late 1930's, is given a new chance with a new purpose in 1998 when she meets Nick Fury in the dark alleyways of Seattle. From there, her life has changed significantly, and given a task to decipher some alien symbols. Little did she know, that trying to learn more about these symbols will bring extraordinary beings from another world to this one.
Crossover - Transformers & Avengers - Rated: M - English - Fantasy/Romance - Chapters: 4 - Words: 17,400 - Reviews: 2 - Favs: 6 - Follows: 6 - Updated: 8/20 - Published: 7/18 - Bumblebee, Optimus Prime, Black Widow/Natasha R., Nick F.
Transformers Cosmic Era by scouttroop reviews
The Cybertronians returns in the Cosmic Era and battles Evil Humans such as Xenophobic Humans and a Planet Eater name Unicron but in time differences will be set aside. In Seed Destiny a 2nd War broke out again as Unicron awaits his Resurrection by pawning people, plus the Autobots return. AU long after the events in TF Dark of the Moon
Crossover - Gundam Seed & Transformers - Rated: T - English - Romance/Sci-Fi - Chapters: 22 - Words: 26,473 - Reviews: 23 - Favs: 10 - Follows: 11 - Updated: 8/18 - Published: 1/13/2021 - [Kira Y., Lacus C.] [Lunamaria H., Shinn A.]
harry potter x transformers by dragons 23
when the war on Cybertron harry who is bumblebee arcee who susan bones moonracer who was hannah abbott they end up going back to hogwarts were the triwizard tournament is to start and the rest of the group come to them by ship
Crossover - Misc. Movies & Transformers - Rated: M - English - Romance/Adventure - Chapters: 2 - Words: 5,128 - Favs: 1 - Follows: 1 - Updated: 7/30 - Published: 7/19 - Optimus Prime, Arcee, Que/Wheeljack
Arietta's Story by SwiftAuditore reviews
I am your ordinary woman when I found myself reincarnated as the main character of Harry Potter. She is stuck with the dursleys until she finds a way to get away from them for good and is adopted by her other uncle. How will the wizarding world cope with a savior who is not going to be pushed around?
Crossover - Harry Potter & Transformers - Rated: T - English - Family/Friendship - Chapters: 10 - Words: 24,192 - Reviews: 38 - Favs: 239 - Follows: 271 - Updated: 7/26 - Published: 12/15/2017 - Harry P., Sam W.
The Loud House: Rise of the Titans by JurassicLincoln reviews
The stories of the Louds, Autobots, Maximals, Terrorcons, Godzilla, and King Kong all come together in an epic crossover event.
Crossover - Transformers & Loud House - Rated: K+ - English - Sci-Fi/Adventure - Chapters: 3 - Words: 16,530 - Reviews: 6 - Favs: 6 - Follows: 5 - Updated: 7/16 - Published: 7/6 - Optimus Prime, Dino/Mirage, Lincoln L., Morag
The Allspark War by WarDude101
An ancient war arrives on Earth, and humanity is caught in the crossfire.
Crossover - X-overs & Transformers - Rated: T - English - Sci-Fi/Adventure - Chapters: 1 - Words: 1,725 - Favs: 1 - Published: 7/10
Transformers vs Misión Imposible by Cristian Lozano
La historia es un crossover entre Misión imposible y Transformers, esta historia ocurre después de Misión imposible: Repercusión y Transformers: el último caballero
Crossover - Mission: Impossible & Transformers - Rated: K - Spanish - Sci-Fi/Adventure - Chapters: 1 - Words: 9,751 - Published: 7/9 - Ethan H., Luther S., Megatron, Arcee
The Sum of their Parts by Grayson Clarke reviews
In 1985, Shield received strange deep space feedback. Soon after, a meteorite crash landed, but further investigation of the site gave the organization no evidence as to what it was. Months passed, several sightings of, something springing up, but Shield could never track down what the meteorite brought. It almost ended up in Shield's cold cases, until later revelations surfaced.
Crossover - Transformers & Avengers - Rated: T - English - Adventure/Friendship - Chapters: 6 - Words: 12,036 - Reviews: 12 - Favs: 49 - Follows: 54 - Updated: 7/9 - Published: 7/24/2021
Bioformers 2, Part 2: Xanthium's Betrayal by Biomarvel740 reviews
In the second half of the Bioformers sequel, Green, Paradox, and their friends must fight harder than before as Xanthium betrays the Toabot cause, to enact a sinister plot for the Makutacons involving a powerful weapon capable of destroying the earth.
Crossover - Bionicle & Transformers - Rated: T - English - Spiritual/Adventure - Chapters: 66 - Words: 254,219 - Reviews: 1 - Favs: 6 - Follows: 6 - Updated: 7/5 - Published: 3/24/2017
Sparkmate by ElizabethMidnight
During the battle of Chicago, a woman appeared. She saw the war & fought w/the Autobots & humans. After the war she is in hiding. While searching for Optimus Prime she meets Cade Yeager. The reason for why she stayed with him becomes clear when he finds a semi-truck that resembles Optimus, her sparkmate.
Crossover - Transformers & Dungeons and Dragons - Rated: M - English - Romance/Adventure - Chapters: 8 - Words: 6,892 - Updated: 6/29 - Published: 2/14 - Optimus Prime, OC, Bumblebee, Cade Y.
The Second Great War by JSmith25 reviews
In the six years that the Autobots have been on Earth, humanity has enjoyed the most prosperous era in its history. With the Autobots, they had nothing to fear. With the Autobots, they were untouched, untroubled by anything the Universe could throw at them. But then came San Francisco. Then came the greatest threat they had ever faced. Then came the Kaiju.
Crossover - Transformers & Pacific Rim - Rated: T - English - Sci-Fi - Chapters: 18 - Words: 103,274 - Reviews: 130 - Favs: 263 - Follows: 283 - Updated: 6/17 - Published: 3/24/2014
Magical Sparkmate by ChronoQuantify reviews
Samantha Witwicky wants to leave home and experience the world. Now she's forced into an ancient civil war between the Autobots and Decepticons. For an average witch, she thought this would be easy... until the mechs started fighting over her. (Not the best summary but it will change) Fem!witch!Sam/ Reverse!harem (Optimus/Bumblebee/Soundwave/More)
Crossover - Harry Potter & Transformers - Rated: M - English - Romance/Fantasy - Chapters: 16 - Words: 311,371 - Reviews: 277 - Favs: 556 - Follows: 577 - Updated: 6/16 - Published: 7/1/2020
Transformers: A New World by Seth Eaton the Autobot reviews
The Autobots have followed the Decepticons to another world called Remnant. Here, they find another race of humans, who seem to be completely different from Earth's Humans. Soon, they meet a group of young ladies, who seem to be able to help them in their fight.
Crossover - Transformers & RWBY - Rated: T - English - Adventure/Sci-Fi - Chapters: 5 - Words: 4,209 - Reviews: 1 - Favs: 13 - Follows: 14 - Updated: 6/16 - Published: 1/1 - Bumblebee, Optimus Prime, Megatron, Team RWBY
One last ride by unknownCarnifex
Overboost has always been running away from something, The Decepticons, the DJD, her own choices. But now she stopped running and now she will make her stand. Her one last ride before she meets the consequences of choices she didn't know she made.
Crossover - Transformers/Beast Wars & Transformers - Rated: M - English - Adventure/Hurt/Comfort - Chapters: 1 - Words: 1,168 - Published: 6/15
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