Transformers Crossovers
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Changed Forever by OptimusANDSavoysGIRL
KSI created Galvatron, but what happens when Lockdown captures Optimus Prime and Galvatron follows? Optimus is forced to endure things a Prime should never have to go through, which causes him to become unstable. Even after his mate rescues him, he is unstable causing her friends to force her to make a choice that will cause more harm to Optimus in the end.
Crossover - Transformers & Supergirl - Rated: T - English - Romance/Hurt/Comfort - Chapters: 10 - Words: 5,616 - Favs: 4 - Follows: 3 - Updated: 11/3/2021 - Published: 10/26/2021 - Mikaela B., Optimus Prime, Lockdown, Kara D./Supergirl - Complete
Transformers: The Last Knight Parody by T1mothy
Three years have passed since Optimus left, conflict still occurs between humans, Autobots and Decepticons. But now, a new threat approaches, and with it, secrets and revelations too. Lines will be drawn, allegiances will be shattered, and the fate of both humanity and Cybertronians will hang in the balance.
Crossover - Transformers & Misc. Cartoons - Rated: T - English - Sci-Fi/Fantasy - Chapters: 11 - Words: 41,791 - Favs: 1 - Follows: 1 - Updated: 11/2/2021 - Published: 9/4/2021
Max Ride: Robots In Disguise by Jimbotron96
The Flock saved the world but it came at a high cost. The Flock have been living normal lives ever since (As normal as they can). Now, Max discovers a new secret: Robots in Disguise are hiding on Earth and her work to save the world isn't finished.
Crossover - Maximum Ride & Transformers - Rated: T - English - Adventure/Drama - Chapters: 1 - Words: 1,846 - Follows: 1 - Published: 11/1/2021 - Max, Sam W., Optimus Prime
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: 8 - Words: 23,000 - Reviews: 28 - Favs: 196 - Follows: 228 - Updated: 10/31/2021 - Published: 12/15/2017 - Harry P., Sam W.
She-Ra: The True First Ones by PhoenixMando reviews
When Entrapta stumbles upon a First Ones relic, she accidentally awakens a First One right in her lab, that First One being an Autobot, one of many who had been tasked with protecting Etheria. As an old threat returns, stronger than ever, Entrapta, alongside Catra and Melog, will have to journey around Etheria. Their mission: awaken the remaining Autobots to protect Etheria.
Crossover - Transformers & She-Ra and the Princesses of Power - Rated: T - English - Adventure/Sci-Fi - Chapters: 16 - Words: 23,793 - Reviews: 12 - Favs: 18 - Follows: 18 - Updated: 10/24/2021 - Published: 4/27/2021 - Optimus Prime, OC, Catra, Princess Entrapta
Love Conquers All by PaleAngel90
Story begins before Sam meets Bumblebee. Main pairing Optimus/OMC (Male Character), Side Pairings: Ironhide/Will, Bumblebee/Sam, Arcee/Mikaela & more. Peter (OMC) befriends the autobots and N.E.S.T. After the events of the 1st film sector 7 (on the run) manages to get him isolated from the bots and allies and kidnap him, follow his journey to freedom and recovery after the ordeal.
Crossover - Resident Evil & Transformers - Rated: M - English - Romance/Family - Chapters: 2 - Words: 5,240 - Updated: 10/22/2021 - Published: 10/21/2021 - [Optimus Prime, OC] [Bumblebee, Sam W.]
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: 12 - Words: 142,903 - Reviews: 208 - Favs: 404 - Follows: 429 - Updated: 10/20/2021 - Published: 7/1/2020
Reunion (COMPLETE) by Sboyle92 reviews
Anna Stark, estranged sister of Tony Stark, & secretly a human Allspark, is on the hunt for her missing brother after being in a coma for almost three months after the battle of Mission City. She has left the Autobots & NEST behind as she searches & what she finds, will change her life and those in her life but for better or for worse? A Different World Sequel
Crossover - Transformers & Avengers - Rated: T - English - Family/Adventure - Chapters: 11 - Words: 9,567 - Reviews: 55 - Favs: 258 - Follows: 182 - Updated: 10/14/2021 - Published: 2/11/2017 - OC, Black Widow/Natasha R., Iron Man/Tony S., Thor - Complete
Six Times The Machine by Zaraen reviews
She was ready for her final stand. Ready to take as many as those alien bastards down as she could. Only, things didn't turn out how she expected. Death didn't claim her and now she's on the one planet they all swore to protect, but there's one difference. Someone else found it and now she's an alien to her own heritage. A machine in the eyes of this Humanity. Then there's that AI.
Crossover - Halo & Transformers - Rated: T - English - Adventure - Chapters: 26 - Words: 169,575 - Reviews: 239 - Favs: 469 - Follows: 513 - Updated: 10/14/2021 - Published: 8/2/2014 - SPARTAN-B312/Noble Six, W. Lennox, Optimus Prime
A Different World (BEING REWRITTEN) by Sboyle92 reviews
Anna Stark is the estranged younger sister of Tony Stark. After running away when turning 18 because of the inattention from her brother, she changes her name to Anna Jackson and is now a Lieutenant under the command of Captain William Lennox. After turning 23, Anna has decided it is time to reach out to her brother. Part 1 of Transformers/Avengers Crossover.
Crossover - Transformers & Avengers - Rated: T - English - Adventure/Family - Chapters: 12 - Words: 15,025 - Reviews: 32 - Favs: 357 - Follows: 244 - Updated: 10/14/2021 - Published: 1/8/2017 - W. Lennox, R. Epps, Iron Man/Tony S., OC - Complete
shockwave's return by jackattack999 reviews
after surviving the Chicago war, shockwave has been taken prisoner by emperor nefarious for ten years before escaping with an unlikely ally. after the suffering he has endured, shockwave realises that he was no different to the emperor so he and his ally joins the resistance lead by the lombax, rivet. but there's more to it this new galaxy than meets the eye. takes place after dotm
Crossover - Transformers & Ratchet and Clank - Rated: T - English - Adventure - Chapters: 3 - Words: 5,629 - Reviews: 1 - Favs: 1 - Follows: 2 - Published: 10/11/2021 - Shockwave, Rivet
The Thrill of the Hunt by OptimusANDSavoysGIRL reviews
Optimus Prime along with others who are heroes as well as aliens are forced into a hunt where their lives mean nothing as each of them is hunted and killed. Optimus realizes he will never come out of the situation alive unless he can figure out a way off the island which seems very unlikely. He forms a bond with Supergirl for whatever time they have left and it makes him happy for
Crossover - Transformers & Supergirl - Rated: M - English - Tragedy/Angst - Chapters: 13 - Words: 10,080 - Reviews: 1 - Favs: 2 - Follows: 1 - Published: 10/10/2021 - Optimus Prime, Kara D./Supergirl, Clark K./Superman - Complete
Transformers - You don't belong here by OptimusANDSavoysGIRL
When Optimus Prime, the last of the Cybertronians on Earth is cornered and injured, told over and over he doesn't belong on Earth, and soon starts to believe what is being told to him while being tortured and remembering his own past on Cybertron. Which makes him start to lose hope in anything much less living and trusting anyone anymore. Unaware that a young woman, another Prime a
Crossover - Transformers & Avengers - Rated: T - English - Suspense/Hurt/Comfort - Chapters: 1 - Words: 2,336 - Favs: 3 - Follows: 3 - Published: 10/10/2021 - Optimus Prime, Wheelie, Brains, OC - Complete
Love is the name by OptimusANDSavoysGIRL
Tia and Kate Stark are Tony Stark's daughters, but when Tony learns his older daughter keeps a secret from him, his younger daughter helped her. He blows his stack until the two disappear in a fiery crash. Tony thinks his daughters are dead, but Vision and Dr. Strange assure him they aren't. However, where did they go, and how can he get them back before it's too late?
Crossover - Transformers & Avengers - Rated: T - English - Supernatural/Suspense - Chapters: 5 - Words: 2,550 - Published: 10/10/2021 - Optimus Prime, Iron Man/Tony S., OC - Complete
Transformers Prime: The Last Knight by Ultra Instinct -Sign reviews
After getting separated from Optimus Prime and crash-landing on an unknown planet known as Earth, Elita-1 adopted a new identity and decided to care for her young son and infant daughter, yearning to one day be reunited with her Sparkmate. That is where the story of Rodimus Prime begins...
Crossover - Transformers/Beast Wars & Transformers - Rated: K+ - English - Adventure/Sci-Fi - Chapters: 4 - Words: 22,337 - Reviews: 11 - Favs: 39 - Follows: 43 - Updated: 10/9/2021 - Published: 9/24/2021 - [Optimus Prime, Elita One] Jack D., Miko N.
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. Years passed, several sightings of, something springing up, but Shield could never track down what the meteorite had brought. It ended up in Shield's cold cases, until later revelations surfaced.
Crossover - Transformers & Avengers - Rated: T - English - Adventure/Friendship - Chapters: 3 - Words: 5,747 - Reviews: 2 - Favs: 16 - Follows: 25 - Updated: 10/8/2021 - Published: 7/24/2021
MLPEG: Los Protectores de Ecuestria by PhinaBella987
Estábamos las chicas, Spike, Discord y yo estábamos en Sugar Cube Corner, estábamos almorzando y estaba a la par de mi novia de pelo multicolores cuando en eso sentimos de como se movió la tierra tan abruptamente y nos escondemos debajo de la, mesa
Crossover - My Little Pony & Transformers - Rated: T - Spanish - Adventure/Romance - Chapters: 23 - Words: 72,197 - Favs: 1 - Follows: 1 - Updated: 10/7/2021 - Published: 4/9/2021 - Rainbow Dash, Applejack, Ratchet, Optimus Prime
Le Pirate, Le Camion et souvent la petite fille by saibotbanana reviews
En général quand on tente un voyage tout seul dans l'espace ça peut mal tourner. Heureusement l'Arcadia récupère souvent toutes sortes de choses sur sa route.
Crossover - Captain Harlock & Transformers - Rated: K - French - Sci-Fi/Humor - Chapters: 3 - Words: 10,547 - Reviews: 3 - Favs: 2 - Follows: 3 - Updated: 9/29/2021 - Published: 8/9/2021 - Harlock/Albator, Revi/Lydia, Optimus Prime
Transformers: Legend of the White Dragon by UltraKamenSentai101
Troy Witwicky... son of the fugitive, Derek Witwicky... a normal teen who wants to make a difference in his broken world, and with the power of the White Dragon, and his allies in the Autobots, will he succeed in clearing his father's name? Or will Dragon Prime and the evil Decepticons emerge victorious and destroy humanity? Xover between Legend of the White Dragon and Knightverse.
Crossover - Power Rangers & Transformers - Rated: M - English - Adventure/Mystery - Chapters: 1 - Words: 678 - Favs: 3 - Follows: 2 - Published: 9/19/2021 - OC, Bumblebee, Optimus Prime, Megatron
GO GO Power Rangers! It's Transformin' Time! by UltraKamenSentai101
Evil Space Aliens... transforming alien robots... secret government agencies... Only one team in the universe can bring peace to the planet Earth. They are Mighty! They are Morphenominal! They are ready to roll out and fight against all odds... they are... the Power Rangers! And with the help of the Autobots, the AllSpark must be found! Will they succeed or fall against all evil?
Crossover - Power Rangers & Transformers - Rated: T - English - Sci-Fi/Adventure - Chapters: 1 - Words: 679 - Favs: 5 - Follows: 4 - Published: 9/18/2021 - OC, Bumblebee, Optimus Prime
Shots by Moonstar19 reviews
Summary inside. Rated T and M.
Crossover - Transformers/Beast Wars & Transformers - Rated: T - English - Romance/Hurt/Comfort - Chapters: 15 - Words: 33,293 - Reviews: 4 - Favs: 4 - Follows: 5 - Updated: 8/26/2021 - Published: 5/3/2020
Transformers: Age of Extinction Parody by T1mothy
Lucas, Jonesy, Danny and Francisca find an abandoned semi truck, they soon discover there's more to it than meets the eye. And, after being chased out of San Francisco by a group of marksman, they must work with the Autobots in order to bring them and a Cybertronian bounty hunter down and earn back their freedom.
Crossover - Transformers & Misc. Cartoons - Rated: T - English - Sci-Fi/Fantasy - Chapters: 7 - Words: 9,909 - Favs: 1 - Follows: 1 - Published: 8/23/2021 - Complete
Transformers Dark of The Moon (Pokémon Edition) by T1mothy
PokemonTransformers crossover. A couple of years that Ash, Goh and Chloe had been with the Autobots and NEST. But they're going on a new alien adventure with new people and people from the past, But there are other secrets hidden, and not all of them are good. The Autobots and Decepticons clash once more in a way that Earth has never seen before.
Crossover - Transformers & Pokémon - Rated: T - English - Sci-Fi/Fantasy - Chapters: 16 - Words: 8,972 - Favs: 6 - Follows: 3 - Updated: 8/21/2021 - Published: 5/19/2021 - Complete
Transformers Revenge of The Fallen (Pokémon Edition) by T1mothy
PokemonTransformers crossover. After the events of the first installment, Ash starts to see strange Cybertronian symbols and gets paranoid. As the Autobots continue to fight the remaining Decepticons on Earth, a familiar enemy returns, and a new threat rises.
Crossover - Transformers & Pokémon - Rated: T - English - Sci-Fi/Fantasy - Chapters: 16 - Words: 11,042 - Favs: 6 - Follows: 4 - Updated: 8/21/2021 - Published: 5/19/2021 - Complete
Transformers (Pokémon Edition) by T1mothy reviews
PokemonTransformers crossover. A new threat comes to Earth, searching for an ultimate power, which is in the hands of Ash Ketchum. With the help of some Robots in Disguise, Ash might have what it takes to save the world.
Crossover - Transformers & Pokémon - Rated: T - English - Sci-Fi/Fantasy - Chapters: 16 - Words: 13,356 - Reviews: 3 - Favs: 7 - Follows: 2 - Updated: 8/21/2021 - Published: 3/20/2021 - Complete
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