Mass Effect Crossovers
Filters
3.2K | « Prev Page 1 .. 3 4 5 6 7 8 9 16 .. Last Next »

Broken Odyssey by Damie243 reviews
It is the year 3350, the races of the Milky Way have long put aside their grievances to unite under a single banner. They held on against dangerous threats and hoped to attain actual peace. After fighting the remnants of an extrgalactic empire, forces of the MWR shall be thrust into another galaxy that's so much like their own. A galaxy that just won its war for survival.
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi/Drama - Chapters: 9 - Words: 43,306 - Reviews: 31 - Favs: 151 - Follows: 220 - Updated: 3/12 - Published: 2/7/2020 - OC, Shepard
Crystal Eagle Rising by Vengeful Soldier reviews
Humanity has survived itself, Tiberium, and even the scrin in its struggle to reach the stars. Now, can it survive contact with the rest of the galaxy?
Crossover - Command & Conquer & Mass Effect - Rated: M - English - Chapters: 1 - Words: 10,326 - Reviews: 17 - Favs: 94 - Follows: 147 - Published: 3/11
Terran Federation: Counterstrike by L4 of the WEST reviews
It's been 8 years since the end of the 2nd Bug war. Humanity is starting to enter its golden age in the galactic stage, with technology no one can replicate, with allies that no one has accepted, and a military capable of taking on any competitor it seems. But that will change, those who employ chains are circling like wolves, and an enemy thought dead return
Crossover - Starship Troopers & Mass Effect - Rated: M - English - Sci-Fi - Chapters: 18 - Words: 133,478 - Reviews: 148 - Favs: 468 - Follows: 506 - Updated: 3/11 - Published: 2/16/2017
Starwatch: Compact by CruxMDQ reviews
Sequel to Starwatch. After the battle of the Citadel and Sovereign's defeat, the Citadel Spectres and the Alliance agency that succeeded Overwatch must pick up the pieces and gear up their efforts to prepare for the looming threat, while also dealing with the inertia of their parent governments, the machinations of shadowy forces, and competing initiatives.
Crossover - Mass Effect & Overwatch - Rated: T - English - Sci-Fi/Adventure - Chapters: 10 - Words: 46,594 - Reviews: 7 - Favs: 41 - Follows: 40 - Updated: 3/9 - Published: 2/15/2020 - Liara T'Soni, Javik, Amélie L./Widowmaker, Lena O./Tracer
The Lion,The Wolf, and The Bear by 27grey reviews
Jane Shepard has seen it all. God Machines, pirate onslaughts, the under belly of the citadel, Prothean city worlds. dead races reborn on ice world, looked down the barrel of a Krogan shotgun determined to save his people but how will she deal when she meets men that have seen things that only exist in her nightmares.
Crossover - Halo & Mass Effect - Rated: T - English - Chapters: 7 - Words: 22,328 - Reviews: 21 - Favs: 81 - Follows: 137 - Updated: 3/9 - Published: 12/15/2020 - Garrus V., Tali'Zorah, Shepard
An Unusual Civilization Halo x Mass effect by bayasaa1216 reviews
[AU] the human Species was an unknown Equation in the Reapers Cycle, Humans were a species that was observed by the Protheans, but when the war with the Reapers came, the Protheans recalled every available force and fight the reapers. the Orignal Mass Relay was damaged but not destroyed, because of this the humans developed away from the norm [AU First contact war & Reaper war]
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi - Chapters: 3 - Words: 2,949 - Reviews: 25 - Favs: 109 - Follows: 152 - Updated: 3/9 - Published: 12/9/2020
The Mission Stays the Same by Broken Trident reviews
A joke of Chaos daemon sent two unlikely allies - an Eldar Farseer and an Imperial Storm trooper, through the Warp and into another Universe. In this place, everything is alien to them. Except for one thing - war. War is something they know very well. (Story adopted by Regina Dea. New author starts from Chapter 21)
Crossover - Warhammer & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 29 - Words: 333,516 - Reviews: 2453 - Favs: 4,318 - Follows: 4,750 - Updated: 3/8 - Published: 10/4/2011 - Eldar, Imperial Guard, Shepard
War, Peace, and other Galactic Customs by The Almighty Afroduck reviews
After a long, terrible war, the Federation of Sovereign Empires forms as the product of the alliance created early in the Great War between the Covenant Separatists and the UNSC. Time passes as they progress greatly, eventually discovering the existence of other galactic governments. The events that will follow will change the course of the galaxy in more ways than one. PART- 3
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 36 - Words: 402,465 - Reviews: 721 - Favs: 1,230 - Follows: 1,509 - Updated: 3/7 - Published: 3/1/2014
The Affecting Force by Jebest4781 reviews
The Force is a mysterious thing. It's effects can make drastic changes if applied in certain ways. Even if applying a user of the Force and a certain admiral into a different environment can make unique events happen. Rated M for violence, language and other things. Up for Adoption.
Crossover - Mass Effect & Star Wars Rebels - Rated: M - English - Adventure/Sci-Fi - Chapters: 2 - Words: 12,548 - Reviews: 15 - Favs: 67 - Follows: 66 - Updated: 3/5 - Published: 11/11/2018 - Aria T'Loak, Shepard, Ezra B., Grand Admiral Thrawn
Rose of the Stars (DIS) by DisgruntledJaeger reviews
(Discontinued. See Crimson Incandescence.)
Crossover - Mass Effect & RWBY - Rated: T - English - Adventure/Sci-Fi - Chapters: 15 - Words: 51,423 - Reviews: 155 - Favs: 333 - Follows: 463 - Updated: 3/5 - Published: 6/30/2017
From the Wasteland to the Stars by craig.obrien.14661 reviews
The story of how one simple mission changed the fate for everyone in the capital wasteland and the world. For better or worse they were going to find out.(Rewrite of into the star more based in fallout 3 instead of New Vegas)
Crossover - Fallout & Mass Effect - Rated: M - English - Adventure - Chapters: 6 - Words: 7,812 - Reviews: 5 - Favs: 26 - Follows: 35 - Updated: 3/5 - Published: 7/15/2020
The Miracle at Menae by ekrolo2 reviews
There is no greater joy for a turian than to serve the Hierarchy and its people. Achaian Corinthus believed in these words since he was a child. They never failed to aid him through the greatest of hardships. But when the Reaper invasion of Menae pushes him and his men to the brick, it will take something more than mere words and sentiment to reignite their spirits. One-shot.
Crossover - Superman & Mass Effect - Rated: T - English - Drama/Sci-Fi - Chapters: 1 - Words: 3,305 - Reviews: 1 - Favs: 18 - Follows: 15 - Published: 3/5 - Complete
Galactic nightmare by RadiantVoid reviews
It has been a year since Ghost returned to his own dimension. Since then, Shepard has kept on doing what she does best : preparing for the Reapers' arrival, and trying to wake the galaxy up to their impending doom, to little success. Now, as they stand at the edge of the precipice, a mysterious figure appears before Shepard : Grimm, the Troupe master... [ON HIATUS]
Crossover - Mass Effect & Hollow Knight - Rated: T - English - Adventure - Chapters: 4 - Words: 18,255 - Reviews: 25 - Favs: 106 - Follows: 142 - Updated: 3/4 - Published: 2/20 - Shepard, the Knight
Harry Shepard by colinot reviews
Après sa mort, les reliques proposent à Harry une seconde chance dans un autre monde. Elles oublient juste de lui mentionner un petit détail... (EN PAUSE)
Crossover - Harry Potter & Mass Effect - Rated: T - French - Humor - Chapters: 5 - Words: 10,653 - Reviews: 9 - Favs: 26 - Follows: 30 - Updated: 2/26 - Published: 1/29 - Harry P., Shepard
Batman: The Future Knight by yeabro reviews
Batman was investigating Cobblepot was taking hostages, it was a trap instead. He froze Batman and left him for dead in an ice chamber. Now 173 years later, Batman wakes up to discover a futuristic human wearing military gear. Now he has to fight crime in the distant future with no friends and relatives.
Crossover - Mass Effect & Batman - Rated: T - English - Adventure/Crime - Chapters: 7 - Words: 30,019 - Reviews: 5 - Favs: 22 - Follows: 30 - Updated: 2/26 - Published: 12/13/2020 - Shepard, Garrus V., Bruce W./Batman, Ra's al Ghul
In the Arms of Eternity by Autumn Reign reviews
In the midst of a staid galaxy, life can be anything but chaotic. Yet, underneath the glitz and glam, the evils of reality still lurk. Old conspiracies, horrific experiments, racial supremacy—it's all laid bare as magic and science intertwine. And as the old gods make their move, the denizens of the galaxy are left wondering: who, or what, are we to believe in?
Crossover - Fate/stay night & Mass Effect - Rated: M - English - Adventure/Mystery - Chapters: 1 - Words: 6,653 - Reviews: 15 - Favs: 48 - Follows: 74 - Published: 2/24 - Councilor Tevos
On the Illusion of Might by evevee reviews
We thought ourselves powerful, able to conquer a galaxy with nothing but toys. When we overcame every challenge, breached the space between the galaxies themselves, what use were the words of a race ashamed of their own past? Yet we cannot deny that we were warned, for while a challenge to a human is laughable, a challenge to humanity is a death sentence.
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi - Chapters: 24 - Words: 266,953 - Reviews: 1746 - Favs: 2,994 - Follows: 3,849 - Updated: 2/21 - Published: 2/21/2017 - Master Chief/John-117, Cortana, Garrus V., Shepard
The End has begun by balckwatch1 reviews
An empire torn out of its galaxy stands ready to burn the stars once more, in the emperor's name.
Crossover - Mass Effect & Stellaris - Rated: M - English - Sci-Fi - Chapters: 1 - Words: 3,875 - Reviews: 109 - Favs: 180 - Follows: 236 - Updated: 2/21 - Published: 12/8/2019 - Tali'Zorah, Admiral Hackett, Shepard, OC
Don't Fear the Reaper by Shalum reviews
At the fringes of human space in Segmentum Pacificus, numerous colonies have disappeared without a trace. At the dire need of the Inquisition, a local force has been dispatched to investigate. What they find, however, will plunge the entire sector into darkness once again - for there is no peace among the stars.
Crossover - Warhammer & Mass Effect - Rated: M - English - Sci-Fi - Chapters: 1 - Words: 5,792 - Reviews: 7 - Favs: 19 - Follows: 29 - Published: 2/18
The Hand of Thrawn by leo0074 reviews
Following the discovery of an ancient device, the Emperor's ambitions to further expand his empire leads Grand Admiral Thrawn to a galaxy far different to his own. Now forced to navigate through politics and to build new alliances, he must face the reemergence of a powerful threat that lurks in the darkness, and mark the beginning of the Empire of the Hand. (I don't own ST or ME).
Crossover - Star Wars & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 1 - Words: 7,617 - Reviews: 14 - Favs: 94 - Follows: 121 - Published: 2/18 - Thrawn, Admiral Hackett, Illusive Man, Shepard
Judgement by Steel by LiquiDSoL reviews
A Chapter of the Ultima Founding finds itself in eerily familiar stars. Fate is reshaped by hands unknowing and unwitting. An ancient evil rises to reclaim its nefarious purpose. An unknown faith is reborn anew to bring hope that need it the most. Rated M for gore, language, and other future content.
Crossover - Warhammer & Mass Effect - Rated: M - English - Adventure/Sci-Fi - Chapters: 2 - Words: 7,928 - Reviews: 17 - Favs: 57 - Follows: 96 - Updated: 2/15 - Published: 6/11/2020
The Ghost Of Reach by SSJ Lone Wolf reviews
Following the disaster that was the Fall of Reach, Noble Six and Auntie Dot find themselves transported to a galaxy that is almost identical to their own...only humanity are not fighting for their survival from alien aggressors. Cut off from the UNSC and ONI, the two are forced to adapt to a galaxy not ravaged by war...unaware of the dark threat looming on the horizon.
Crossover - Halo & Mass Effect - Rated: M - English - Chapters: 1 - Words: 7,310 - Reviews: 19 - Favs: 154 - Follows: 207 - Published: 2/15 - SPARTAN-B312/Noble Six
Rats, Lizards, and Spaceships by NamThunder reviews
The world fell, but two races remained. The Lizardmen and Skavens. Once lifetime rivals, they came together and rose from the ash, rebuilt the world, and ascended unto the stars and beyond. One day, however, they discovered that they are not alone, and would unknowingly become a part of a chain of events that would change the entire galaxy and its creations forever.
Crossover - Warhammer & Mass Effect - Rated: T - English - Sci-Fi/Fantasy - Chapters: 3 - Words: 3,108 - Reviews: 55 - Favs: 110 - Follows: 153 - Updated: 2/14 - Published: 5/7/2020 - Lizardmen
Hunter Effect by Kurogane7 reviews
A/U: After years of fearing the unknown, the Council decides to get back up on the horse to explore the galaxy, sending two frigates through an unopened relay. What they find is a world of wonders and danger; a world of monsters. Rated T for now. Will incorporate elements from all MH games, and ME. Yes, Andromeda too.
Crossover - Mass Effect & Monster Hunter - Rated: T - English - Adventure - Chapters: 9 - Words: 50,953 - Reviews: 161 - Favs: 375 - Follows: 482 - Updated: 2/14 - Published: 7/30/2019
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: 38 - Words: 95,020 - Reviews: 196 - Favs: 149 - Follows: 160 - Updated: 2/13 - Published: 1/15/2015 - Gravemind
3.2K | « Prev Page 1 .. 3 4 5 6 7 8 9 16 .. Last Next »