Sort: Category . Published . Updated . Title . Words . Chapters . Reviews . Status .
Age of the Titans by
GojiGrimlockSaurus reviews
In honor and tribute of Godzilla: King of the Monsters, this one-shot series will mostly focus on Godzilla and King Ghidorah. This will focus on how each fictional universe will react to them and other Titans when they stomp into the fray. As monsters vie for supremacy, all hell will break loose, and nothing will ever be the same. As one wise scientist said, "Let them fight."
Crossover - X-overs & Godzilla - Rated: T - English - Horror/Drama - Chapters: 14 - Words: 120,312 - Reviews: 130 - Favs: 97 - Follows: 97 - Updated: 13h - Published: 6/2 - Rodan, King Ghidorah, Mothra, Godzilla
Freedom's Ring by
DFMRCV reviews
A cruel and unforgiving world, an enemy of unclear origin hellbent on finishing a war of extermination, its victims and their desperate attempts at resisting proving just as futile as the hopes of the men who led them. Many died and would continue to die, none of them doubted that reality. But what if...
Crossover - Attack on Titan/進撃の巨人 & Gate - Jietai Kare no Chi nite, Kaku Tatakeri - Rated: T - English - Mystery/Sci-Fi - Chapters: 4 - Words: 79,279 - Reviews: 68 - Favs: 100 - Follows: 124 - Updated: 9/7 - Published: 6/26 - Eren Y., Ilse L., Levi A., OC
It began in the 17th Ward by
alleincorrax reviews
The Doom Slayer is out of commission and VEGA finds himself facing a new threat on his own. But in comparison to demons, a few pesky Ghouls are not something the highly advanced AI can't handle.
Crossover - Doom & Tokyo Ghoul/東京喰種トーキョーグール - Rated: M - English - Horror/Sci-Fi - Chapters: 1 - Words: 5,204 - Reviews: 9 - Favs: 21 - Follows: 25 - Published: 9/2
Return of Faith by
DeadRich18 reviews
Long ago, Angels came to Remnant and brought with them enlightenment. They spread faith and hope across the world before returning to the stars. The people prospered under the faith, then came the Heretic King. Now the faith is outlawed, its members hunted as criminals, but hope remains. In hidden places, the faithful gather and pray to their God, awaiting the return of His Angels.
Crossover - Warhammer & RWBY - Rated: M - English - Drama - Chapters: 8 - Words: 48,940 - Reviews: 208 - Favs: 343 - Follows: 455 - Updated: 8/26 - Published: 9/22/2018 - Inquisition, Space Marines, Ruby R.
Universal DOOM by
ImpulsiveWeaver reviews
After being cast away by Samuel Hayden, the Doom Slayer winds up on an adventure through multiple universes and meeting those who have their own issues with the denizens of Hell. Crossover between Doom (2016) and any horror/supernatural movies/books/stories that I include. Feel free to request any movie, book, or franchise you want to see. Cover art by JakeBurner on DeviantArt!
Crossover - Doom & Ghostbusters - Rated: M - English - Horror/Supernatural - Chapters: 22 - Words: 96,862 - Reviews: 223 - Favs: 261 - Follows: 265 - Updated: 8/25 - Published: 9/20/2018
Red Like Roses? Gross! by
Mallobaude reviews
As a vampire, Ruby Rose depended on the blood of others to sustain herself. There was only one problem. She hated blood. There very sight of it made her queasy. Some vampire she was! But Ruby needed to eat to survive. So when it came time to feed, and her prey lay sleeping in his bed, she hesitated. Until the young blond boy finally woke up, and wondered just what was going on.
RWBY - Rated: T - English - Humor/Romance - Chapters: 6 - Words: 42,107 - Reviews: 397 - Favs: 994 - Follows: 1,046 - Updated: 8/24 - Published: 3/4 - [Jaune A., Ruby R.]
The Power of Choice by
Hey It's That Guy reviews
He was meant to be a weapon of death and destruction for a genocidal race that traveled the cosmos. That role is changed when fate sends him, not to Earth, but Remnant. Upon waking on this unknown world of bloody evolution Monster X tries to understand what it means to live with freedom from his former masters. However, the Grimm Queen will not tolerate any obstacle to her plans.
Crossover - Godzilla & RWBY - Rated: T - English - Sci-Fi/Adventure - Chapters: 13 - Words: 38,740 - Reviews: 288 - Favs: 304 - Follows: 363 - Updated: 8/8 - Published: 5/19/2018 - Monster X, Cinder F., Team RWBY
In All The Wrong Places by
Zetic reviews
Long after the Human-Monster war, the surface fell into a state of chaos and became an unending nightmare. The eighth human is from that nightmare and is about to enter the Underground, and they're bringing far more than a stick or kitchen knife... Soulsborne Series crossover AU, OC Undead protagonist. Contains spoilers. (Duh.) (Revised/edited 11/8/2018)
Crossover - Dark Souls & Undertale - Rated: M - English - Adventure/Romance - Chapters: 33 - Words: 159,807 - Reviews: 193 - Favs: 407 - Follows: 455 - Updated: 8/4 - Published: 10/27/2015 - [Wanderer, Toriel] Asriel
This Doom Of Ours by
gods-own reviews
For there are far worse things out in the darkness of space than mere machines and now they wake and all we can hear our their screams. all material contained within is the property of Bioware and id Software Enjoy. CHAPTER 11 IS UP
Crossover - Doom & Mass Effect - Rated: M - English - Sci-Fi/Supernatural - Chapters: 12 - Words: 51,714 - Reviews: 102 - Favs: 298 - Follows: 378 - Updated: 8/2 - Published: 7/16/2016 - Doomguy
The Bringer Of War by
thetriumphator reviews
A man from a world set on fire finds one in a long period of tenuous peace. The people of Remnant will soon find that even in a world of bloody evolution, war...war never changes. Tale of Two Wastelands character.
Crossover - Fallout & RWBY - Rated: M - English - Adventure - Chapters: 193 - Words: 286,593 - Reviews: 1774 - Favs: 1,275 - Follows: 1,552 - Updated: 7/19 - Published: 8/31/2015 - Lone Wanderer, Courier, Pyrrha N.
Of Cybernetics and Magic by
Dragons123d reviews
Greivous has the chance to live again, but only because of a promise he gave to his beloved wife. How will he handle this new world and life?
Crossover - Star Wars & Harry Potter - Rated: T - English - Sci-Fi/Horror - Chapters: 14 - Words: 20,080 - Reviews: 30 - Favs: 201 - Follows: 220 - Updated: 6/26 - Published: 1/10/2017 - [General Grievous, OC] Shaak Ti, Gabrielle D.
UnderDoom by
AgitatingSkeleton reviews
The Underground gets one Hell of a newcomer. Follow the Doom Slayer on his path to escape the Underground, meet new friends, and make pasta. Uses elements from both the 1993 Doomguy and the 2016 Doom Slayer. Rated T because, duh, Doomguy. Cover art by DiscoEndy9 on DeviantArt.
Crossover - Doom & Undertale - Rated: T - English - Chapters: 14 - Words: 39,659 - Reviews: 315 - Favs: 372 - Follows: 413 - Updated: 6/25 - Published: 1/9/2017
Shattered by
SquareRootOf-1 reviews
The Royal Scientist was shattered across space and time, never to be seen again... but the three broken pieces of his soul didn't die with him. Instead, each found a place in a human child. Exactly seventeen years later, the trio are drawn back into the Underground to finish a plan they set in motion long ago, in a life they never lived.
Undertale - Rated: T - English - Adventure/Suspense - Chapters: 58 - Words: 110,377 - Reviews: 43 - Favs: 50 - Follows: 60 - Updated: 6/10 - Published: 11/22/2016 - [OC, Chara] Sans, Gaster
Cataclysm by
Kaox Krul reviews
Azula teams up with Sokka and the rest of the Gaang to stop a much bigger threat; a monster that is more machine than flesh. They must learn to trust each other in order to overcome the Cyborg General of the Confederacy.
Crossover - Star Wars & Avatar: Last Airbender - Rated: T - English - Drama/Adventure - Chapters: 4 - Words: 14,300 - Reviews: 12 - Favs: 21 - Follows: 19 - Updated: 6/7 - Published: 5/7 - [Azula, Sokka] General Grievous
Twenty Years Late by
A Very Thirsty Megalomaniac reviews
It's hard for the Ethereals to invade when someone else got there first.
Crossover - X-Com & Half-Life - Rated: T - English - Sci-Fi/Adventure - Chapters: 18 - Words: 91,352 - Reviews: 35 - Favs: 71 - Follows: 70 - Updated: 5/20 - Published: 5/14/2018 - Bradford, A. Shephard, Barney C., The Combine
Something Wicked This Way Comes by
I am but two days old reviews
Rather than be undergo a forced log out on the day YGGDRASIL's servers shut down, salary man Suzuki Satoru finds himself in the body of his avatar Momonga. Nazarick has been transported to a strange new land with a shattered moon hanging over head. The world is yours for the taking.
Crossover - RWBY & Overlord/オーバーロード - Rated: M - English - Drama/Horror - Chapters: 9 - Words: 57,575 - Reviews: 251 - Favs: 711 - Follows: 906 - Updated: 5/17 - Published: 3/11 - Ainz
Droidermination by
Blitzkrieg01 reviews
An organic being with Determination is a stubborn, one track mind kind of individual. But what about a Droid?
Crossover - Star Wars & Undertale - Rated: T - English - Sci-Fi/Adventure - Chapters: 1 - Words: 480 - Reviews: 2 - Favs: 4 - Follows: 5 - Published: 4/28
Freeblade Darling by
Magna Relator reviews
It is the 42nd millennium. A Freeblade is baptized in the bowels of a fleeing Ark Mechanicus. His home gone in the wake of the Great Rift. What remains of his people now stranded over a desert planet infested by Xenos and survivors of Old Night. In the grim darkness of his future on this new world lies only love and war. Both of which know no mercy. Rewrite ch 1-3 in progress
Crossover - Warhammer & DARLING in the FRANKXX/ダーリン イン ザ フランキス - Rated: T - English - Sci-Fi/Romance - Chapters: 10 - Words: 134,546 - Reviews: 125 - Favs: 168 - Follows: 204 - Updated: 4/7 - Published: 3/3/2018
Psychosis by
swimmingcop reviews
The Courier falls into the Underground. Fortunately, there are plenty of friends to lead the way.
Crossover - Fallout & Undertale - Rated: T - English - Adventure/Horror - Chapters: 11 - Words: 60,168 - Reviews: 106 - Favs: 147 - Follows: 184 - Updated: 12/13/2018 - Published: 3/21/2017 - Courier, Chara
The Arda Campaign by
Lord Exar Kun reviews
When a Separatist anti-gravity well generator prototype goes haywire Jedi knights Obi-Wan Kenobi and Anakin Skywalker will find themselves blasted into a strange world called Arda. Where they will join on a quest to destroy this strange thing called the Ring of Power. However general Grievous a mysterious dark Jedi and a droid army have also landed in the realm of Shadow in Mordor.
Crossover - Star Wars & Lord of the Rings - Rated: T - English - Adventure/Fantasy - Chapters: 45 - Words: 482,230 - Reviews: 457 - Favs: 328 - Follows: 310 - Updated: 11/28/2018 - Published: 9/13/2013 - Anakin Skywalker, Obi-Wan K., General Grievous, Aragorn - Complete
Vanguard by
metaldragon868 reviews
In an incident with the Vex, the Vanguard of the City are sent back in time to a time before the Golden Age and the Collapse. Seeing an incredible opportunity, they decide that staying is the best choice, and work to prepare humanity for the coming war from the shadows. But in the land of gods and magic, their arrival heralds great change. For they are god-slayers and fatebreakers.
Crossover - Percy Jackson and the Olympians & Destiny - Rated: M - English - Sci-Fi/Adventure - Chapters: 10 - Words: 73,423 - Reviews: 278 - Favs: 707 - Follows: 847 - Updated: 9/7/2018 - Published: 12/25/2016 - Athena, Cmdr. Zavala, Cayde-6, Ikora Rey
Battlestar Galactica: The Guiding Fire by
GunnyStacker reviews
199 days after the Cylon attack on the 12 Colonies, a chance encounter brings the Colonial Fleet in contact with the UNSC Spirit of Fire after the events of the Forerunner Shield World. Can they work together to reach UNSC space before the Cylons wipe them all out and manage to overcome the odds without killing each other first?
Crossover - Halo & Battlestar Galactica: 2003 - Rated: T - English - Sci-Fi/Drama - Chapters: 13 - Words: 157,922 - Reviews: 529 - Favs: 823 - Follows: 1,090 - Updated: 2/2/2018 - Published: 11/13/2016 - J. Cutter, Serina, W. Adama, K. Thrace/Starbuck
Two souls and one story by
Dark chara reviews
When Lucas and Lucy get's dragged into their favorite game Undertale, they must go through the whole underground, in one last Pacifist run. But with monsters trying to kill them, and no save or load point, how will them survive? Can they survive the underground, or will one of them fall to genocide as the answer?
Undertale - Rated: T - English - Friendship/Hurt/Comfort - Chapters: 19 - Words: 42,767 - Reviews: 13 - Favs: 31 - Follows: 43 - Updated: 1/30/2018 - Published: 9/16/2016 - [OC, Chara] Sans, Toriel
Psi Effect by
Cap'n Chryssalid reviews
A fun-loving asari mercenary finds herself a little in over her head when she ends up abducted by terrifying aliens from beyond the galactic frontier. These asari-like creatures call themselves 'humans.' They seem to be secretly nosing about on the borders of known space, acting through proxies, conducting covert operations, and they've got a deal for an enterprising asari...
Crossover - X-Com & Mass Effect - Rated: T - English - Humor/Sci-Fi - Chapters: 43 - Words: 387,570 - Reviews: 1367 - Favs: 3,358 - Follows: 3,886 - Updated: 1/2/2018 - Published: 7/19/2014 - U. Wrex, Daro'Xen, Shepard (F), OC
Gate - Thus The Ethereals Find A New Planet by
Jeggetts reviews
A Gate opens up in Japan. The only problem is, the ones who already conquered earth, are still here. One-Shot.
Crossover - X-Com & Gate - Jietai Kare no Chi nite, Kaku Tatakeri - Rated: T - English - Sci-Fi/Fantasy - Chapters: 1 - Words: 8,201 - Reviews: 10 - Favs: 42 - Follows: 29 - Published: 9/7/2017 - Complete
Creatures of the Force by
Tobacco Crow reviews
Galbatorix has unleashed a destructive new ally upon the Varden just after the Battle of the Burning Plains. One with weapons and armor that can defeat even magic users with ease. The Varden now face their darkest hour. However, unbeknownst to both them and Galbatorix, a new war looms on the horizon thanks to this new foe. One that could destroy their entire world. ON HOLD.
Crossover - Star Wars & Inheritance Cycle - Rated: T - English - Adventure/Drama - Chapters: 7 - Words: 26,089 - Reviews: 22 - Favs: 29 - Follows: 49 - Updated: 8/1/2017 - Published: 12/16/2015 - Obi-Wan K., General Grievous, Eragon S., Roran
Exitium by
MintyFeet reviews
As humanity stands on the brink of total extinction, Samuel Hayden, Director of the Unified Argent Corporation, enacts a desperate last-ditch plan to ensure mankind's survival. In another time, and in other place, a turian patrol ship encounters a mass relay unlike any other. The peoples of Citadel space and the Terminus have no idea that beyond it lies one thing: Doom.
Crossover - Doom & Mass Effect - Rated: M - English - Chapters: 9 - Words: 70,355 - Reviews: 84 - Favs: 498 - Follows: 542 - Published: 7/14/2017
Into the Abyss by
GlowInTheDarkCIA reviews
As the fire fades the world is becoming dark. With his duties fulfilled, the ashen one sets off into the wastes of the old kingdoms, waiting for the end of the world. Is this the end of his journey, or is there something below the surface?
Crossover - Dark Souls & Undertale - Rated: K - English - Friendship/Drama - Chapters: 9 - Words: 17,243 - Reviews: 14 - Favs: 59 - Follows: 73 - Updated: 7/6/2017 - Published: 6/28/2017
A Second Chance by
Muse of Schleissheim reviews
He died wishing he could fix his mistakes. Now he has been given that chance, but in a way he never expected. Anakin Skywalker has been sent to the Clone Wars, not as himself but as Darth Vader. Now the Chosen One must face his greatest challenge yet; stopping Sidious from succeeding once again, and staying one step ahead of his younger self. - DISCONTINUED, PENDING REWRITE
Star Wars - Rated: T - English - Chapters: 13 - Words: 109,072 - Reviews: 806 - Favs: 1,862 - Follows: 2,057 - Updated: 7/3/2017 - Published: 6/16/2013 - Darth Vader, Anakin Skywalker
The Humans Strike Back by
psykotic addiction reviews
Youkai and Hollows alike call humans weak and defenseless. They say it's due to the fact there are billions of them that they even manage to survive. This is Humanity kindly requesting you say that a little louder. *Click* *Click*
Crossover - Bleach & Rosario + Vampire - Rated: T - English - Supernatural/Adventure - Chapters: 38 - Words: 157,952 - Reviews: 502 - Favs: 473 - Follows: 267 - Updated: 12/21/2012 - Published: 4/16/2012 - Complete
Sort: Category . Published . Updated . Title . Words . Chapters . Reviews . Status .
A Determined Soul reviews
"Rise and shine Corporal Shepard. Your time has come again." Adrian wakes up in an unknown location, separated from the rest of his unit and with no known way to escape. Just like old times. But at least he gets his weapons back, and hey at least everything isn't trying to kill him.
Crossover - Half-Life & Undertale - Rated: M - English - Suspense/Adventure - Chapters: 2 - Words: 2,846 - Reviews: 1 - Follows: 2 - Updated: 9/8 - Published: 8/21 - [A. Shephard, Chara]
The FOUNDATION: The Guard and his Angel reviews
Trapped in MT Ebott, Monsterkind is stuck in a never ending cycle of GENOCIDE. One day however, this all changes. With the arrival of powerful enitites, the cycle might finally be broken. The everlasting touture will be replaced, with the screams of the dying, the damned, and the unnatural
Crossover - Undertale & SCP Foundation Mythos - Rated: T - English - Adventure/Mystery - Chapters: 4 - Words: 4,100 - Reviews: 12 - Favs: 3 - Follows: 8 - Updated: 9/2 - Published: 8/6 - [OC, Chara] Sans