Mass Effect Crossovers
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Jumping Eldarlike to Another Universe by Vivori reviews
A half-Eldar, hidden secret of her father, a goddess of healing that does not know how to fight, a simple Seer and her best friend Howling Banshee got the one way ticket to fell into the ME Universe. Of course to add problems to their opportunity of new life, the Reapers are coming to cleanse this universe of every sentient being. What to do? What to do indeed?
Crossover - Warhammer & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 9 - Words: 47,073 - Reviews: 81 - Favs: 135 - Follows: 180 - Updated: 1/13 - Published: 4/19/2020 - Eldar, Primarch/s, Liara T'Soni, Shepard
A FAMILY AGAINST THE GALAXYunder rewrite on SV by Captain Saint 1st reviews
under rewrite and will be forevermore be posted and updated on Sufficient Velocity to my account Captain Saint
Crossover - Fate/stay night & Mass Effect - Rated: M - English - Adventure/Sci-Fi - Chapters: 15 - Words: 71,645 - Reviews: 70 - Favs: 186 - Follows: 226 - Updated: 1/13 - Published: 4/10/2020
All the Stars by BlueWay reviews
When the Long Night of Solace is evaporated over Reach via the weaponized usage of a Slipspace Drive, it ferries with it in its swallowed sections the Covenant Empire and, more horrifyingly, the desperate measures that the UNSC used to fight them. When they are found in a universe on the precipice of their own history, the meaning of the term "Mass Effect" will change forever.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 38 - Words: 670,075 - Reviews: 1047 - Favs: 1,450 - Follows: 1,777 - Updated: 1/13 - Published: 6/8/2018 - SPARTAN-B312/Noble Six, Rookie
To Be the Last by Bruanshan Never-Seen reviews
A Halo/Mass Effect crossover, though not a typical one. This is the story of the last Forerunner, sent to a different galaxy entirely. How will he handle himself in this new glaxy where everything is different. Adopted from drich147. I corrected a mistake in chapter 3 regarding how long he has been there. I do not own Mass Effect or Halo.
Crossover - Halo & Mass Effect - Rated: M - English - Adventure - Chapters: 3 - Words: 13,070 - Reviews: 232 - Favs: 407 - Follows: 467 - Updated: 1/13 - Published: 7/28/2012 - Didact
Lost Son of Terra Phoenix by Ares007 reviews
For eons past, they enjoyed the harvest of their farms. Countless civilizations breathed life because they allowed it. Now, they will die because he demands it. Halo/Mass Effect but with heavy elements from Warhammer 40k. M-Shep/Miranda, OC/Liara. HFY
Crossover - Halo & Mass Effect - Rated: M - English - Adventure/Romance - Chapters: 9 - Words: 50,229 - Reviews: 30 - Favs: 93 - Follows: 116 - Updated: 1/13 - Published: 11/29/2021 - [SPARTAN-B312/Noble Six, Oriana L.]
Mass Effect: Beyond The Veil by SaibotReaper Productions reviews
What Makes A Legend? Is it his his deeds. His Triumphs. What say you when you are ripped from the pages of the history that was written for you. And what shall two little lights become when they know not the path and who shall guide them? Ahh such is the price of free will and so the great game begins after all Light and Dark. Are tools for our use to become gods.
Crossover - Mass Effect & Destiny - Rated: T - English - Sci-Fi/Adventure - Chapters: 1 - Words: 6,055 - Reviews: 5 - Favs: 34 - Follows: 39 - Published: 1/13 - Garrus V., Liara T'Soni, Guardian, Oryx
Spectre by blackshamrock333 reviews
Ce qui ne devait être qu'une simple mission de récupération, pour la commandante Shepard de l'UNSC, a rapidement tourné au cauchemar. Désormais, l'humanité et la citadelle sont au bord de la guerre, inconscient qu'un danger bien plus grand les guette. Deux Shepard ne seront pas de trop pour cette mission.
Crossover - Halo & Mass Effect - Rated: T - French - Adventure - Chapters: 9 - Words: 25,302 - Reviews: 7 - Favs: 8 - Follows: 11 - Updated: 1/12 - Published: 9/12/2021
System Alliance Rise to Power by Konradoziom reviews
Humanity discovered the ruins of an ancient civilization on Mars in 2148 and made their first contact in 2157. However, the galaxy was not what they expected. With relays as the only defensive line between freedom and tyranny, System Alliance will make decisions that will change the image of the galaxy while starting its rise to power.
Crossover - Star Wars & Mass Effect - Rated: K+ - English - Chapters: 15 - Words: 20,106 - Reviews: 22 - Favs: 84 - Follows: 91 - Updated: 1/11 - Published: 12/27/2021 - Complete
No Greater Calling by silencewillfall0091 reviews
Because here's the thing. Turians, despite their reputations, had never loved war- not the suffering, the dying, nor the pain. They loved victory- the prevailing of clear good over clear evil- justice winning in the end, the beating of overwhelming odds for peace. And there was never more a clear example of this type of war than ours against the Covenant.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 2 - Words: 3,304 - Reviews: 33 - Favs: 140 - Follows: 242 - Updated: 1/11 - Published: 1/7
Halo: A New Journey by mgarner3199 reviews
Master Chief wakes up in the Mass Effect universe and joins Commander Shepard in an effort to stop the Reapers. With time running out, can they stop the extinction of every species, or will they fade into legend?First, they got to stop the Reapers though...
Crossover - Halo & Mass Effect - Rated: K - English - Sci-Fi/Romance - Chapters: 2 - Words: 1,571 - Reviews: 12 - Favs: 24 - Follows: 53 - Updated: 1/10 - Published: 12/7/2021 - Cortana, Master Chief/John-117, Illusive Man, Shepard
Deliverance by HumanTsunami reviews
He has travelled the breadth of the wasteland multiple times over. From California to Washington DC to Colorado. He has delivered news and salvation. She has sacrificed everything for the Universe she loves. She came from nothing but she died with everything she could have hoped for. What happens when two unstoppable legends meet. The rules will change but war, war never changes.
Crossover - Fallout & Mass Effect - Rated: M - English - Drama/Adventure - Chapters: 6 - Words: 29,585 - Reviews: 15 - Favs: 56 - Follows: 93 - Updated: 1/9 - Published: 5/30/2021 - Courier, Shepard
Accounts of the Flood conflicts by hunter 139 reviews
A multicrossover series of one-shots depicting several franchises and their encounters with the Flood. I do not own Halo or any other franchises depicted in these stories.
Crossover - Halo & Mass Effect - Rated: T - English - Horror/Sci-Fi - Chapters: 40 - Words: 98,854 - Reviews: 203 - Favs: 163 - Follows: 176 - Updated: 1/8 - Published: 1/15/2015 - Gravemind
The Galaxy under an Iron Heel by KanisRussell reviews
After conquering the Earth and placing it beneath the heavy weight of a jackboot, the Third Reich sets it's hungry eyes on a new target. The Final frontier. They discover things they never thought possible, and quickly finds that they might not be the only masterrace in existence. "Life does not forgive weakness"
Crossover - Mass Effect & Wolfenstein series - Rated: M - English - Adventure/Sci-Fi - Chapters: 19 - Words: 85,873 - Reviews: 197 - Favs: 308 - Follows: 386 - Updated: 1/8 - Published: 8/17/2017 - Garrus V., Liara T'Soni, Shepard, OC
The Wrong Time But The Right Hero by robotgod456 reviews
Sometimes all it takes to change the galaxy is having the right person in the wrong time. Trapped frozen for over 200 hundred years Izuku Midoriya awakens to a world that grows more and more unfamiliar to him. As ancient horrors start to awaken and the galaxy grows more darker sometimes all it really takes is one hero in a galaxy lacking of one.
Crossover - Mass Effect & My Hero Academia/僕のヒーローアカデミア - Rated: M - English - Adventure/Sci-Fi - Chapters: 8 - Words: 44,156 - Reviews: 31 - Favs: 176 - Follows: 235 - Updated: 1/8 - Published: 10/31/2021 - Tali'Zorah, Izuku M.
Mass Divergence by hierosian reviews
It was unexpected, to say the least. The Citadel Council, the MSY, Governance - they all faced a new, confusing world. And, for those closest to the expanding shockwave, a very different life... [Crossover of Mass Effect, To the Stars, and Solemnis]
Crossover - Mass Effect & Puella Magi Madoka Magica/魔法少女まどか★マギカ - Rated: T - English - Sci-Fi/Fantasy - Chapters: 10 - Words: 152,270 - Reviews: 112 - Favs: 348 - Follows: 438 - Updated: 1/7 - Published: 11/20/2016
The Ghoul Effect by storyseeker7 reviews
Humans and Ghouls two species who by natures design should have destroyed one or the other in bloody war of survive. But the actions of a few mange prevent such an event from occurring, and now two species work together for a better future. How will they react to a galaxy for of different races, and how will the galaxy react to the unique relationship between these two races?
Crossover - Mass Effect & Tokyo Ghoul/東京喰種トーキョーグール - Rated: M - English - Sci-Fi - Chapters: 26 - Words: 222,467 - Reviews: 214 - Favs: 535 - Follows: 632 - Updated: 1/7 - Published: 1/2/2019
The Reclamation by Fade Maybe reviews
Through ONI's manipulation, the UNSC stumbles upon a Mass Relay and is dragged into a new war. They'll discover the battered races of the Citadel, the political intrigue of its factions, and a second group of humans governed by the Systems Alliance, divided by Cerberus, and lead by Commander Shepard. Yet no one can stop what is to come: the Reclamation, and the death of the galaxy.
Crossover - Halo & Mass Effect - Rated: T - English - Adventure/Sci-Fi - Chapters: 53 - Words: 402,127 - Reviews: 1611 - Favs: 1,677 - Follows: 2,088 - Updated: 1/6 - Published: 3/13/2013
The Serenade Excelion by Erin Primette reviews
It is said the first human Spectre, Commander Irene Shepard, was the sole survivor of the raid on Mindoir which batarian slavers either slaughtered or enslaved their victims. For now, she has to confront Saren after he's gone rogue. Little does anyone know, the strange red jewel Irene wears around her neck has extraordinary powers no military in the galaxy could recognize.
Crossover - Magical Girl Lyrical Nanoha & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 2 - Words: 5,504 - Reviews: 1 - Favs: 22 - Follows: 38 - Updated: 1/6 - Published: 10/28/2021 - [Shepard, Garrus V.] D. Anderson, Saren A.
RWBY Effect by Owriush reviews
The Breach has been dealt with and team RWBY needs a break, but not before they are sent to stop a sudden Grimm gathering. Now they seem to have ended up in a different world with its own humans living along side various alien species. Join Shepard and her crew along with team RWBY as they fight to stop a darkness from rising. P.S WhiteRose and BumbleBee paring plus FemShepXTali
Crossover - Mass Effect & RWBY - Rated: T - English - Adventure/Romance - Chapters: 42 - Words: 675,163 - Reviews: 123 - Favs: 310 - Follows: 318 - Updated: 1/5 - Published: 9/16/2015
Mass Effect: Reaper T8 by ArcherEdgeBond
A Reaper threat and three different Sheppards. how will the universe handle this. follow Geoff, John, and Jane Shepard as they fight the reapers for survival and fight a new threat soon to take hold.(this was a challenge given to me by my friend the unforgivenone19901. if you have not checked out his work please do) (Disclaimer: I do not own the rights, this is purely fanmade)
Crossover - Terminator & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 9 - Words: 23,057 - Favs: 8 - Follows: 9 - Updated: 1/3 - Published: 2/25/2020
Voyage unto Infinity by supertruckin reviews
The USS Voyager comes face to face with the massive ship that is the UNSC Infinity after Voyager's nearly fatal first test of their quantum slipstream drive. Getting home isn't their only issue. They will have to work together in order to unravel the ancient threat that plagues the new galaxy that they find themselves in. Star Trek:Voyager, Mass Effect, and Halo triple crossover
Crossover - Mass Effect & Halo - Rated: T - English - Sci-Fi/Adventure - Chapters: 15 - Words: 79,399 - Reviews: 605 - Favs: 1,504 - Follows: 1,975 - Updated: 1/2 - Published: 4/10/2019 - Master Chief/John-117, Cortana, Shepard
Replicating Mass by jascr2010 reviews
Dying comes with an interesting discovery, Hello mass effect I have arrived. slash self insert op OMC.
Crossover - Stargate: Atlantis & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 1 - Words: 384 - Reviews: 2 - Favs: 19 - Follows: 27 - Published: 1/2 - Kaidan A., Clone Shepard, Scott R.
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: M - English - Sci-Fi - Chapters: 64 - Words: 345,885 - Reviews: 2899 - Favs: 4,286 - Follows: 4,738 - Updated: 1/1 - Published: 8/8/2014
A Metal Guardian by JawsOnYou67 reviews
The Universal Century, only a few short years ago humanity nearly eradicated itself to the tune of a madman, now it spreads, free of most of its old hatred. Yet the galaxy won't let them rest. Terminal prepares the twin Queens as best it can. (Gundam x Mass Effect)
Crossover - Gundam UC & Mass Effect - Rated: T - English - Sci-Fi/Humor - Chapters: 7 - Words: 120,799 - Reviews: 85 - Favs: 233 - Follows: 289 - Updated: 12/31/2021 - Published: 8/18/2020 - Amuro R., Char A., Tali'Zorah, Admiral Hackett
Clone Effect by Twistedstitcher27 reviews
Captain Rex is sent on shore leave after Umbara. While at 79's, he meets a woman from a planet he's never heard of, who is facing ghosts of her own while trying to find her place in a Republic at war. Rated M for language and future chapters.
Crossover - Star Wars: The Clone Wars & Mass Effect - Rated: M - English - Romance/Hurt/Comfort - Chapters: 27 - Words: 125,109 - Reviews: 63 - Favs: 187 - Follows: 262 - Updated: 12/31/2021 - Published: 1/27/2021 - [Captain Rex, Shepard] Fives, Anakin S.
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