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HaloEffect: Rise of The Republic by Fernix13 reviews
With Great War ended, humanity and covenant merge. New formed Republic of Orion Arm is trying to create a war-free civilization, but what will happen when empire of 3000 worlds will meet another galactic goverment? Rated T for blood, death etc.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 3 - Words: 8,629 - Reviews: 23 - Favs: 81 - Follows: 116 - Updated: 8/27 - Published: 8/24 - Master Chief/John-117, T. Hood, Shepard (F), Shepard (M)
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: 18 - Words: 171,836 - Reviews: 567 - Favs: 1,567 - Follows: 1,896 - Updated: 6h - Published: 7/19/2014 - U. Wrex, Daro'Xen, Shepard (F), OC
Mass Exodus by Puppetmaster24 reviews
Three of the most powerful Eldar craftworlds; Biel Tan, Ulthwe and Iyanden have chosen to flee their own universe and seek refuge from the eternity of war. They have arrived in a new galaxy plagued by it's own problems, and they have some un-invited guests wth them.
Crossover - Warhammer & Mass Effect - Rated: K - English - Adventure/Drama - Chapters: 7 - Words: 22,482 - Reviews: 41 - Favs: 65 - Follows: 128 - Updated: 10h - Published: 7/16
The Gathering Darkness by TheLastEidolon reviews
The Council races stumble upon the Sol system and its occupants. Amidst trying to decipher the...unusual technology employed by the humans, they learn that the denizens of Earth are fighting a desperate war against an enemy so powerful, even the combined might of the Council's armies may not be enough to defeat it...
Crossover - Mass Effect & Destiny - Rated: T - English - Sci-Fi/Adventure - Chapters: 4 - Words: 27,340 - Reviews: 77 - Favs: 258 - Follows: 329 - Updated: 20h - Published: 7/10 - Garrus V., Liara T'Soni, U. Wrex, Tali'Zorah
Take Three by Tekomandor reviews
Commander Shepard has been all over the galaxy, but she's never been back in time before. She's stranded in a time that makes no sense, and on an Earth that's facing a dire threat of it's own. Set in Season Five of SG1. Paragade, Vanguard Shepard.
Crossover - Stargate: SG-1 & Mass Effect - Rated: T - English - Adventure/Sci-Fi - Chapters: 2 - Words: 5,481 - Reviews: 8 - Favs: 34 - Follows: 70 - Updated: 21h - Published: 8/24
Robo Effect by Star Sage reviews
The Robotech wars are over. The survivors of Humanity and the Zentraedi are now alone in the universe, and so, come together, becoming something new, becoming Terrans. Now this race will find itself thrust into the galactic scene, as the Citadel Races and those beyond test these young upstarts, and in the shadows, old things begin to move.
Crossover - Robotech/Macross & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 41 - Words: 144,681 - Reviews: 397 - Favs: 429 - Follows: 485 - Updated: 8/29 - Published: 4/14
The Dragon Queens by Mystborn reviews
Prophesies complete, an immortal Dragonborn and her vampire best friend are left to their own devices. The result? A jointly ruled empire of Nirn that spans the stars. So when Batarians are chased through relay 314 by the Turians into Imperial space, all oblivion breaks loose. How will the Galaxy of Science hold up to the Empire of Magic, Especially one ruled by the Dragon Queens?
Crossover - Elder Scroll series & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 17 - Words: 71,147 - Reviews: 256 - Favs: 486 - Follows: 654 - Updated: 8/29 - Published: 2/28
Party by Dancing like Garrus
The squad mates from Mass Effect 2 and Dragon Age 2 all prepare for a party at Hawke's mansion with dramatic love triangles and awkward encounters a plenty. In this AU Shepard and Hawke are good friends and they both want to meet each other's friends, not to mention meeting each other's loves.
Crossover - Mass Effect & Dragon Age - Rated: T - English - Romance/Friendship - Chapters: 1 - Words: 3,004 - Published: 8/29 - [Hawke (F), Fenris] Shepard (F), Thane K.
Sudden Contact by A Very Thirsty Megalomaniac reviews
At the dawn of the Great War, first contact was made between the protoss, imperious firstborn of the xel'naga, and the turians, proud militarists. As the galaxy catches fire at this sudden conflict, unlikely alliances are formed while ancient directives are carried out by the oldest minds in the Milky Way. The Koprulu sector has opened, and the zerg are loose in Council space.
Crossover - StarCraft & Mass Effect - Rated: T - English - Sci-Fi/Humor - Chapters: 28 - Words: 155,036 - Reviews: 304 - Favs: 190 - Follows: 223 - Updated: 8/28 - Published: 2/9 - James R., Tassadar, Alexei S., Primarch Adrien Victus
The Price of Freedom by CDrake reviews
The galaxy recovers after Saren's attack on the Citadel, but all is far from well. One month after Shepard is reported KIA, a young man from a distinguished bloodline is released from prison, the key to finishing his mission buried in his DNA. With extinction on the horizon and chaos threatening to erupt, can an ancient brotherhood hope to survive? The price of freedom is high…
Crossover - Mass Effect & Assassin's Creed - Rated: T - English - Mystery/Suspense - Chapters: 1 - Words: 7,356 - Reviews: 2 - Favs: 4 - Follows: 6 - Published: 8/28 - Ashley W., Illusive Man, Thane K., OC
Mass Effect: Transhuman Revolution by Khobar95 reviews
Mass Effect crossover with Deus Ex, sprinkled with Eclipse Phase
Crossover - Deus Ex & Mass Effect - Rated: T - English - Chapters: 1 - Words: 1,708 - Reviews: 3 - Favs: 11 - Follows: 23 - Published: 8/28
Mass Effect: Contact by FuzyDr4G0NZ reviews
In 2560, just years after the end of hostilities between the Earth based UNSC and the New Colonial Alliance, the Industrial colony of Falkland is slowly being turned into a Fortress as a defense against the perceived Colonial threat. But within months of his transfer to the colony, Lance Corporal David Campbell will find out first hand whether or not the fortress will hold.
Crossover - Halo & Mass Effect - Rated: T - English - Adventure/Sci-Fi - Chapters: 15 - Words: 46,751 - Reviews: 167 - Favs: 206 - Follows: 288 - Updated: 8/28 - Published: 5/8/2014 - OC
Twist of Fate by TenBackwards reviews
With the Sol Gate finally completed, the GTVA can finally achieve the dream of a reunion with Earth. But instead, the least expected contact occurs, and the GTVA finds the Citadel Council instead of Earth. How will the galaxy react to the sudden appearance of the Terrans and Vasudans? Will contact remain peaceful?
Crossover - FreeSpace 2 & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 4 - Words: 7,707 - Reviews: 5 - Favs: 40 - Follows: 48 - Updated: 8/27 - Published: 7/4
Amalgamation by loraine95 reviews
Shepard wakes up in Ferelden after destroying the reapers. As she unravels where she is and how to get back home, she uncovers shocking truths about how she's already connected to Ferelden, the Blight, and the dark spawn.
Crossover - Mass Effect & Dragon Age - Rated: T - English - Romance/Suspense - Chapters: 42 - Words: 137,763 - Reviews: 159 - Favs: 97 - Follows: 195 - Updated: 8/26 - Published: 6/24/2012 - Kaidan A., Shepard (F), Alistair
Infinite Galaxy by unity9 reviews
After surviving everything Columbia could throw at Booker DeWitt, he wakes up only to find the Lutece twins are now offering him another assignment. With nothing to lose, he agrees to the terms, but this time the assignment requires Booker to travel 270 years into the future to a place called Eden Prime.
Crossover - Mass Effect & BioShock - Rated: T - English - Sci-Fi/Fantasy - Chapters: 23 - Words: 157,678 - Reviews: 287 - Favs: 391 - Follows: 497 - Updated: 8/25 - Published: 10/5/2013 - Shepard (M), Booker D.
The Mass Effect and the Speed Force Vol I: the Brave and the Bold by dark dhampir reviews
While chasing some pirates through a modified Mass Relay, Shepard and her friends wind up in Twenty-first Century Central City. What will they do? Recruit the Commander's childhood hero, what else? Part I of II.
Crossover - Flash & Mass Effect - Rated: T - English - Humor/Adventure - Chapters: 4 - Words: 10,787 - Reviews: 5 - Favs: 20 - Follows: 26 - Updated: 8/25 - Published: 3/30 - Barry A./The Flash, Eobard T./Impostor Harrison W./Reverse-Flash, Shepard (F)
Misplaced by Deus Swiftblade reviews
When the seal broke and he opened his eyes, he had hoped to see his friends standing around him, welcoming him back to life. But now he's in a different time and all of his friends have long since passed away. Now the only thing he can do is put what he has been trained to be to good use and serve the galaxy from the shadows.
Crossover - Naruto & Mass Effect - Rated: T - English - Adventure - Chapters: 34 - Words: 354,481 - Reviews: 1296 - Favs: 2,024 - Follows: 2,184 - Updated: 8/25 - Published: 8/25/2013 - Naruto U.
Affinity Effect by Drow79 reviews
We left Earth in the hopes of finding a new home. Now we come back and are shocked at what we find.
Crossover - Civilization Series & Mass Effect - Rated: T - English - Sci-Fi/Fantasy - Chapters: 5 - Words: 16,597 - Reviews: 99 - Favs: 263 - Follows: 360 - Updated: 8/25 - Published: 2/3
One Future, Lightly Used by SeptimusMagistos reviews
Vault Dweller. Chosen One. Lone Wanderer. Courier. Heroes chosen by destiny to safeguard humanity in its times of need. It's now up to Shepard to carry on their legacy and protect the galaxy from a threat like nothing humans have seen before.
Crossover - Fallout & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 5 - Words: 37,441 - Reviews: 21 - Favs: 79 - Follows: 106 - Updated: 8/25 - Published: 1/2
N7 SOLDIER by TheScreamingViking reviews
The Crucible dumps Shepard on Gaia. The first human Spectre becomes the first female SOLDIER as well as their first elite Sniper. Her uncanny ability to bring reason to unreasonable situations will alter the fate of the entire planet, but especially that of her three First Class friends. FF7 / ME3
Crossover - Final Fantasy VII & Mass Effect - Rated: T - English - Adventure/Friendship - Chapters: 21 - Words: 82,632 - Reviews: 197 - Favs: 222 - Follows: 266 - Updated: 8/25 - Published: 3/28
Shattered Universes by general MB reviews
Ch 12: Commander Shepard tries to sell his origin story to the people of Earth and Reach, while Halsey and Mordin's plan hits a snag. The Master Chief and his spartans are given a secret mission, as pieces start to fall into position. Events are occurring that will shape everything else that is to come.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 12 - Words: 86,373 - Reviews: 310 - Favs: 306 - Follows: 379 - Updated: 8/24 - Published: 1/3/2011 - [Tali'Zorah, Shepard (M)] Master Chief/John-117, J. Keyes
From An Age Long Gone by WolfsTrinity reviews
To the humans of the late 22nd century, so-called "Superheroes" and "Supervillains" are a thing of the past, tales from their grandparents of an age long gone, a subject of mockery from the rest of the Galactic Community. A few, however, know better, and to one Man of Steel among them, it's just about time to make a comeback. Officially abandoned by me and up for open adoption.
Crossover - Superman & Mass Effect - Rated: T - English - Adventure - Chapters: 2 - Words: 12,858 - Reviews: 22 - Favs: 78 - Follows: 84 - Updated: 8/24 - Published: 7/19/2013 - Clark K./Kal-El/Superman, Illusive Man, Shepard (F)
Darkest Before the Dawn by Vergil1989 the Crossover King reviews
A damaged ship, stranded on an unknown world. A lost and desperate crew, their fates uncertain. A woman who would do anything to protect them. And a war brewing at the horizon. What could go wrong? (Will likely be rated M before this is over. T for language and violence.)
Crossover - Star Wars & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 7 - Words: 68,937 - Reviews: 87 - Favs: 125 - Follows: 190 - Updated: 8/24 - Published: 8/17/2014
By Sif's Will by KE12 reviews
When the Normandy SR-2 crash lands on a strange planet populated with Viking's and dragons Sif Shepard is mistaken as a Norse God. This is a silly light hearted cross over story, so expect silliness, a random plot, and maybe some laughs. (Suitable for all, occurs after HTTYD2, Stoick Survives, Astrid * Hiccup, F! Shep * Liara, Reapers only mentioned.)
Crossover - Mass Effect & How to Train Your Dragon - Rated: K - English - Adventure - Chapters: 3 - Words: 8,142 - Reviews: 4 - Favs: 8 - Follows: 19 - Updated: 8/24 - Published: 8/14 - Shepard (F), Liara T'Soni, Astrid, Hiccup
Red Alert: Mental Effect by Mental Omega reviews
Mankind is divided between the Forgotten, the Phantom Syndicate, those who believe Yuri is master, and those who fly the united banner of the Allies and Soviets. The Scrin are out there, waiting. The galaxy adjusts to a new paragdim as the science of Tiberium and Element Zero collides. And dolphins can talk. The story of Red Alert now takes to the stars in this daring fusion.
Crossover - Command & Conquer & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 5 - Words: 48,426 - Reviews: 13 - Favs: 54 - Follows: 62 - Updated: 8/24 - Published: 11/3/2014 - Yuri, Shepard (F), Shepard (M)
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