Prototype Crossovers
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Evolution by AFanOfWriting reviews
A different man had been there. Or rather, not a man at all. Cerberus had been founded by a monster, and through a monster it would grow. Follow Shepard through the events of Mass Effect to destroy the Reapers, only to realize that there is another shadow lurking beyond, and with it will come an empire that will destroy anything in its way. See Author's Note for more info.
Crossover - Mass Effect & Prototype - Rated: T - English - Adventure/Sci-Fi - Chapters: 2 - Words: 6,715 - Reviews: 5 - Favs: 20 - Follows: 47 - Updated: 4/17 - Published: 4/13 - Shepard (F), OC, Alex M./Zeus
Symbiotic by Archemedies reviews
In order to contain a deadly virus, team RWBY is sent in to destroy it at the source. However, a chance encounter between team leader Ruby Rose, and the elusive and deadly Alex Mercer, leads to both a conflict of loyalty's, and humanity. Rated T for gore, may change later on if the gore gets excessive (As it very well may, this is Prototype after all)
Crossover - Prototype & RWBY - Rated: T - English - Horror/Angst - Chapters: 2 - Words: 4,865 - Reviews: 13 - Favs: 19 - Follows: 20 - Updated: 4/17 - Published: 4/14 - Alex M./Zeus, Ruby Rose
Avatar: The Harbinger of Death and Destruction by TheDrkKnight12 reviews
Jake, a monster, a demon, a weapon of mass destruction. After saving New York, gets whisked away to somewhere else where he is all but a god
Crossover - Avatar: Last Airbender & Prototype - Rated: T - English - Adventure - Chapters: 5 - Words: 13,891 - Reviews: 21 - Favs: 21 - Follows: 39 - Updated: 4/11 - Published: 3/15 - Aang, Sokka, Katara, OC
A Certain Scientific Prototype by reppuzan reviews
Have you ever watched one of those horror movies where a virus turns everyone into zombies? That's me in a nutshell. Walking Zombie Apocalypse and one of the most powerful bioweapons ever conceived by human hands, living in a city hell bent on giving teenagers superpowers. Oh, and I have a conscience. It's a pretty crazy life, but it's mine. Slight AU, (Mostly) Good OC
Crossover - Toaru Majutsu no Index/とある魔術の禁書目録 & Prototype - Rated: T - English - Sci-Fi/Supernatural - Chapters: 12 - Words: 100,911 - Reviews: 44 - Favs: 66 - Follows: 76 - Updated: 4/10 - Published: 6/20/2014 - OC
A Second Chance by Hazor19825 reviews
A killer, a monster, a terrorist. Alex Mercer was all of that. And he was tired of it. A second chance presents itself to him in the form of a half-elf, a new world and a new life. But all is not as pleasant as it seems. Halkeginia stands at the brink of disaster. From one war to the next how will this unlikely duo face the challenges to come?
Crossover - Familiar of Zero & Prototype - Rated: T - English - Fantasy/Adventure - Chapters: 2 - Words: 9,355 - Reviews: 42 - Favs: 116 - Follows: 181 - Updated: 4/9 - Published: 8/21/2014 - Tiffania, Alex M./Zeus
Unchained God by 123GOHANZ reviews
While mankind expanded out into the universe, he stayed. Not out of self punishment or fear of discovery once again. No...it was neither of those things. It was all tied to the sense of responsibility. He did all of this, he alone caused the city to fall. So he chained himself to that dead place. Waiting for the day he can redeem himself and rid himself of his sins...
Crossover - Mass Effect & Prototype - Rated: T - English - Adventure/Sci-Fi - Chapters: 4 - Words: 10,576 - Reviews: 87 - Favs: 215 - Follows: 300 - Updated: 4/6 - Published: 3/15 - Shepard (F), Alex M./Zeus
Emerald Gleaner: Viral Unicorn by Legionary reviews
[PROTOTYPE 2] My Little Pony: Friendship is Magic Crossover. Oskar's secret has been revealed to Twilight in totality, Twilight faces betraying her friend or betraying her morals. The events of season 2 are fast approaching and the ripples Oskar has caused through his mere presences alone changes more and more. Can a friendship survive when one of of the friends is a killer?
Crossover - My Little Pony & Prototype - Rated: T - English - Adventure - Chapters: 14 - Words: 191,618 - Reviews: 193 - Favs: 137 - Follows: 143 - Updated: 4/2 - Published: 6/6/2014
This is NOT Sparta! by 123GOHANZ reviews
The demons, SPARTANS, used to be the most feared fighting unit in the UNSC. Emphasis on "used to", because some REAL Super Soldiers are gonna show the Covenant what a true demon is like…..May get a rated M rating later
Crossover - Halo & Prototype - Rated: T - English - Parody/Sci-Fi - Chapters: 4 - Words: 2,248 - Reviews: 14 - Favs: 14 - Follows: 19 - Updated: 3/30 - Published: 1/2
Prototype of Zero by TheDrkKnight12 reviews
Louise wanted a powerful familiar. She got it. But instead of a human boy, she got a boy roughly her age with horrifying powers over the living and a vengeful heart no one can quell. May be subject to rate change.
Crossover - Familiar of Zero & Prototype - Rated: T - English - Adventure - Chapters: 8 - Words: 15,708 - Reviews: 100 - Favs: 117 - Follows: 148 - Updated: 3/29 - Published: 2/14 - Louise, Sylphid/Irukukwu, OC
Biomass Effect by Beastrider9 reviews
All life on Earth had been consumed by Blacklight. With no Biomass to feed on, Blacklight had to evolve, adapt, and grow. Now a collective Council of Aliens discovers the existence of such a life form. How do the aliens see a form of life that is viral, how they deal with it, what are the consequences to the galaxy of such a race existing at all.
Crossover - Mass Effect & Prototype - Rated: T - English - Sci-Fi - Chapters: 16 - Words: 91,799 - Reviews: 984 - Favs: 1,482 - Follows: 1,746 - Updated: 3/26 - Published: 8/8/2014
Between Two Lives by Trane7 reviews
Between two lives, so different in volume and purity. Between two lives, so different in strength and weaknesses. Between two lives, each a victim and each a monster. Between two lives, each suffering and each inflicting suffering. Where do these two stand? Two-shot, possible One-shot series. You may adopt or take inspiration from my work.
Crossover - Prototype & Tokyo Ghoul/東京喰種トーキョーグール - Rated: T - English - Chapters: 4 - Words: 5,365 - Reviews: 13 - Favs: 14 - Follows: 22 - Updated: 3/25 - Published: 3/22
La Hermandad de Prototipos by Inferno999 reviews
Las apariencias engañan y aun si conocemos a esa persona de toda la vida nunca podremos estar seguros de saberlo TODO sobre el, podran ser pervertidos, de gran corazon o incluso con una personalidad pasible alegre e incluso hacer felices a las personas a su alrededor...pero siempre hay algo escondido
Crossover - Prototype & High School DxD/ハイスクールD×D - Rated: T - Spanish - Hurt/Comfort/Mystery - Chapters: 9 - Words: 37,378 - Reviews: 12 - Favs: 19 - Follows: 16 - Updated: 3/22 - Published: 1/11 - Alex M./Zeus, PARIAH, H. Issei, G. Rias
You Wake Up In Aaa by TimeManipulator99 reviews
When one wakes up in a strange world, they must adapt. That's exactly what Decker does. Between the return of the Lich, Gentek, and trying his best to fix Finn's relationship problems, he definitely has a full plate. Under the tutelage of Alex Mercer, Decker looks for the perfect solution to the problems of Ooo. ...and perhaps go a little mad along the way.
Crossover - Prototype & Adventure Time with Finn and Jake - Rated: T - English - Romance/Adventure - Chapters: 12 - Words: 27,679 - Reviews: 17 - Favs: 15 - Follows: 14 - Updated: 3/19 - Published: 8/15/2013 - [Finn, Flame Princess] Alex M./Zeus, OC
None of the King's Men by Visions of a Kaleidoscope reviews
A third Prototype does exists during the first Blacklight outbreak; the main reason he was unknown was due to him whisked away to another world early in the story. Halkeginia must now handle a being that is both deadly and unpredictable? Warning: AU Halkeginia, Slight Gary-Stu. [Under hiatus until noted otherwise - Rewriting in progress]
Crossover - Familiar of Zero & Prototype - Rated: T - English - Chapters: 6 - Words: 16,395 - Reviews: 29 - Favs: 53 - Follows: 77 - Updated: 3/19 - Published: 8/27/2013
Philosophy, Deceit, and the Regrets of a Monster by MenialLabor reviews
The Mercer siblings inexplicably find themselves within the magical land of Equestria. One of them is enthralled by the wondrous nature of the world around them. The other is holding back both sensitive information and a murderous blood lust, and is also not technically the other's sibling.
Crossover - My Little Pony & Prototype - Rated: T - English - Family/Drama - Chapters: 9 - Words: 52,815 - Reviews: 41 - Favs: 76 - Follows: 86 - Updated: 3/14 - Published: 9/20/2014 - Alex M./Zeus, Dana M.
Proto-X by Rone Ombre reviews
A non-typical prototype X-men evolution crossover, will be weird and have some humor. But it is still going to keep that Prototype flare. I am not a romance writer so no pairings. Please enjoy Also later chapters will be way longer.
Crossover - X-Men: Evolution & Prototype - Rated: T - English - Adventure/Friendship - Chapters: 7 - Words: 2,596 - Reviews: 30 - Favs: 44 - Follows: 68 - Updated: 3/13 - Published: 3/29/2013
To love Ru Blacklight by Inferno999 reviews
Despues de haber sobrevivido a la bomba nuclear, Alex Mercer se encuentra en otro predicamento cuando un ser del espacio secuestra a su hermana y la unica forma de recuperarla es matando a un cierto individuo. ¿Sera que el poderoso virus seguira las ordenes de este extraño ser? o ¿decidira traicionarlo y traer a su hermana de vuelta?. ligeros OOC
Crossover - To Love-Ru & Prototype - Rated: T - Spanish - Adventure/Horror - Chapters: 7 - Words: 16,866 - Reviews: 9 - Favs: 8 - Follows: 5 - Updated: 3/12 - Published: 1/2 - [Tearju L., Alex M./Zeus, Mikado R., Dana M.]
Variant Strain by scriviner reviews
Prototype/Spider-man(Marvel) Fusion. For most, adolescence is a time of change and growth. For some, the changes are a bit more drastic than expected. Peter struggles with a changing world, an even more changeable body and more questions than he has answers for. He tries to understand where his strange new powers come from and the most important question of all... what happened?
Crossover - Spider-Man & Prototype - Rated: T - English - Sci-Fi/Mystery - Chapters: 69 - Words: 290,420 - Reviews: 960 - Favs: 1,473 - Follows: 1,299 - Updated: 3/8 - Published: 10/25/2012 - Peter P./Spider-Man
Adapt and Overcome by ReaperKiller reviews
It wasn't until she had spilled the blood did Liara T'Soni realize what she had unleashed upon the galaxy. For better or for worse, Zeus had returned./ Some chapters may be later rated M for gore.
Crossover - Mass Effect & Prototype - Rated: T - English - Sci-Fi/Suspense - Chapters: 21 - Words: 55,426 - Reviews: 348 - Favs: 636 - Follows: 775 - Updated: 3/7 - Published: 5/25/2014 - Liara T'Soni, Alex M./Zeus
Cancer by Jonas Grant reviews
"You know why selfishness is a stupid concept? For the same reason cancer cells are always doomed; they consume everything, feed off their host and take all there is to take for themselves, then, the host dies and the cancer with it. No matter how large and deeply implanted it is, the selfish will die with the rest of the world. That's why you should get to work now."
Crossover - Warhammer & Prototype - Rated: T - English - Horror/Sci-Fi - Chapters: 19 - Words: 35,440 - Reviews: 127 - Favs: 191 - Follows: 220 - Updated: 2/23 - Published: 6/26/2012 - Dana M.
alex mercer- Fallout by Luxordz reviews
a crossover between Prototype 1 and Fallout 3. A lot of references and terminology involve things that happened in either the Prototype or Fallout universes, If you don't feel like playing the games (which I highly recommend) you can consult the wikis on either subject.
Crossover - Fallout & Prototype - Rated: T - English - Chapters: 7 - Words: 24,654 - Reviews: 10 - Favs: 27 - Follows: 34 - Updated: 2/16 - Published: 5/20/2013 - Alex M./Zeus
HUNTER by Neo-Alucard9295 reviews
Created by the worst monster that science has ever spawned, one young man must deal with the stigma of being Evolved while at the same time remembering what it was like to be human. All with the help of a whacky new group of friends. Takes place in an AU where Earth and Remnant are connected.
Crossover - Prototype & RWBY - Rated: T - English - Chapters: 1 - Words: 595 - Reviews: 3 - Favs: 4 - Follows: 4 - Published: 2/2
Hell in Yoki by shamaj9901 reviews
Alex Mercer has gotten bored with his kingdom. It's time to start fresh as he takes his horror show over seas into Japan. When he consumes a bus driver that hold information about a place called Yoki Academy, Alex takes his Hell on Earth to the unprepared school. Can Tskune and his friends survive the Prototype? Or will Alex consume them all and expand his Hell on Earth?
Crossover - Rosario + Vampire & Prototype - Rated: T - English - Horror - Chapters: 7 - Words: 11,207 - Reviews: 33 - Favs: 23 - Follows: 42 - Updated: 2/1 - Published: 8/1/2013
More Good than Harm by Abyss Slayer reviews
Alex is convinced by Dana that the on goings in Seattle may need a touch of his help to keep the D.U.P from becoming Blackwatch. -Made because there needs to be more of Alex and Delsin. NOT yaoi!
Crossover - Prototype & inFAMOUS - Rated: T - English - Friendship/Adventure - Chapters: 3 - Words: 5,978 - Reviews: 23 - Favs: 42 - Follows: 49 - Updated: 1/30 - Published: 1/1 - Alex M./Zeus, Delsin R.
Black Hole by MinuSeveN reviews
"I don't think you're a monster," I said. She laughed briefly, and it was a dark utterance with no humor in it. "No?"
Crossover - Prototype & Worm - Rated: T - English - Chapters: 10 - Words: 23,845 - Reviews: 19 - Favs: 120 - Follows: 116 - Updated: 1/29 - Published: 11/22/2013 - Panacea
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