Prototype Crossovers
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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: 10 - Words: 22,384 - Reviews: 119 - Favs: 148 - Follows: 178 - Updated: 5/24 - Published: 2/14 - Louise, Sylphid/Irukukwu, OC
The Euphorian Acumenae by Lord Joyde reviews
We are no longer a young species. We must take responsibility for our actions. We, who have once been known as Humans.. no, as Humanity, have now become something so much more... but, much of what we are now has been born out of that which we had been before and, as such, we still carry many of our faults and imperfections.. Hopefully, this new world will help rid us even of them.
Crossover - Civilization Series & Prototype - Rated: T - English - Supernatural/Sci-Fi - Chapters: 1 - Words: 3,290 - Reviews: 2 - Favs: 1 - Follows: 4 - Published: 5/21
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: 8 - Words: 20,004 - Reviews: 36 - Favs: 45 - Follows: 59 - Updated: 5/18 - Published: 3/15 - Aang, Sokka, Katara, OC
The Kuro Awai ledgend of the black light by Celtic-Moon-Wolf reviews
What would happen, if Sarutobi was a coniving old man, and not the kind grandfather figure we all know, if Orochimaru had other reasons for sealing away the kyuubi's power, set during the Preliminaries
Crossover - Naruto & Prototype - Rated: T - English - Fantasy - Chapters: 4 - Words: 27,492 - Reviews: 58 - Favs: 268 - Follows: 252 - Updated: 5/17 - Published: 2/9/2010 - Naruto U.
The Newcomer by TheFanficCritic1337 reviews
What happens when Alex Mercer joins the battle? Read to find out , criticism appreciated. Bad summary, but good story. ON HOLD!
Crossover - Super Smash Brothers & Prototype - Rated: T - English - Chapters: 2 - Words: 1,162 - Reviews: 6 - Favs: 3 - Follows: 5 - Updated: 5/16 - Published: 5/12
Sword Art Online: Viral by Potat0s0Verlord
Most people know that Blacklight is a biological virus, along with its parent virus, Redlight. But what if they were computer viruses? What would happen if they infect Sword Art Online? Data clusters will hit the fan.
Crossover - Prototype & Sword Art Online/ソードアート・オンライン - Rated: T - English - Adventure/Horror - Chapters: 1 - Words: 936 - Favs: 1 - Follows: 4 - Published: 5/15
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: 17 - Words: 97,130 - Reviews: 1033 - Favs: 1,579 - Follows: 1,879 - Updated: 5/12 - Published: 8/8/2014
Liquid Sample by An Orange Peon reviews
Over the waters of Manhattan, a living weapon is reduced to a puddle of liquid flesh by nuclear fire. In another world, a Princess calls for the one who is to be her familiar. Whether through coincidence or fate, their lives are now inextricably intertwined and their destinies changed forever.
Crossover - Familiar of Zero & Prototype - Rated: T - English - Fantasy/Adventure - Chapters: 6 - Words: 13,039 - Reviews: 236 - Favs: 460 - Follows: 610 - Updated: 5/6 - Published: 3/10 - Henrietta, 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: 6 - Words: 18,458 - Reviews: 49 - Favs: 48 - Follows: 57 - Updated: 5/5 - Published: 4/14 - Alex M./Zeus, Ruby Rose
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: 5 - Words: 20,643 - Reviews: 18 - Favs: 50 - Follows: 94 - Updated: 5/3 - Published: 4/13 - Shepard (F), OC, Alex M./Zeus
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: 13 - Words: 29,715 - Reviews: 17 - Favs: 18 - Follows: 18 - Updated: 4/30 - Published: 8/15/2013 - [Finn, Flame Princess] Alex M./Zeus, OC
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: 8 - Words: 24,480 - Reviews: 12 - Favs: 11 - Follows: 8 - Updated: 4/22 - Published: 1/2 - [Tearju L., Alex M./Zeus, Mikado R., Dana M.]
The Adventures of Alex Mercer: The Yokai Realm by The Chimeran Vampire reviews
After the events of [Prototype], Alex Mercer travels the world and gets himself in situations of an unusual nature. PART 3 Disclaimer: Check my Profile.
Crossover - Rosario + Vampire & Prototype - Rated: T - English - Adventure/Supernatural - Chapters: 1 - Words: 3,224 - Reviews: 2 - Favs: 2 - Follows: 5 - Published: 4/21 - Alex M./Zeus
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: 47 - Favs: 71 - Follows: 78 - 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: 132 - Follows: 204 - 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: 92 - Favs: 251 - Follows: 358 - 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: 139 - Follows: 147 - 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: 15 - Favs: 16 - Follows: 22 - Updated: 3/30 - Published: 1/2
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: 14 - Favs: 16 - Follows: 27 - 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: 20 - Follows: 17 - Updated: 3/22 - Published: 1/11 - Alex M./Zeus, PARIAH, H. Issei, Rias G.
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: 78 - 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: 85 - Follows: 100 - 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: 31 - Favs: 45 - Follows: 70 - Updated: 3/13 - Published: 3/29/2013
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: 967 - Favs: 1,510 - Follows: 1,330 - 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: 351 - Favs: 661 - Follows: 799 - Updated: 3/7 - Published: 5/25/2014 - Liara T'Soni, Alex M./Zeus
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