Mass Effect Crossovers
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The Diocese by pythoner101 reviews
Commander Chloe Sheperd learns of a new group vying for power in the depths of Omega. But this is no ordinary gang, but far more powerful and horrific, brought forth from a place where there is only war. As she learns of its deeds and ambitions Shepherd must make a momentous descision, and hope she does not come to regret it.
Crossover - Warhammer & Mass Effect - Rated: M - English - Chapters: 4 - Words: 8,964 - Reviews: 25 - Favs: 55 - Follows: 95 - Updated: 4/29 - Published: 5/10/2020
Rising from the Embers of Sera by thehappy reviews
The people of Sera rebuild, spreading to the stars. Wars will be waged. Peace will be sought. The Coalition has risen from the ashes to take their right to exist in the galaxy. They will survive...no matter the cost.
Crossover - Gears of War & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 20 - Words: 302,362 - Reviews: 307 - Favs: 587 - Follows: 714 - Updated: 4/29 - Published: 12/28/2020 - OC, U. Wrex, Shepard, Councilor Tevos
A Warden Amongst Starry Skies by SophimusPrime reviews
What if, by chance, our esteemed Commander and her crew just so happened to unearth a strange, seemingly mundane mirror upon one of their many expeditions throughout the systems one day? Sure, at first it would have seemed like nothing. Just sat in the Shuttle Deck gathering dust for a while.. until a certain Hero just so happened to come tumbling out of it.
Crossover - Mass Effect & Dragon Age - Rated: M - English - Romance/Humor - Chapters: 4 - Words: 25,471 - Reviews: 1 - Favs: 10 - Follows: 12 - Updated: 4/29 - Published: 4/22 - Garrus V., The Warden
Game Of The Demon by Ultimatedaywriter reviews
What happens when you hand a feverous 11 year old bastard a sapient magic sword and tell him he's the rightful king? Silas hopes its a lot of blood shed and civil wars. Can Westeros hold itself back from eating itself or will a demon feed like a bloated tick. Smut Violence and Later Asari Also minor Hentai Gotcha System
Crossover - Mass Effect & Game of Thrones - Rated: M - English - Humor/Parody - Chapters: 4 - Words: 8,252 - Reviews: 3 - Favs: 29 - Follows: 40 - Updated: 4/27 - Published: 4/21
United Under Two Skies by Gearman reviews
The story of Rex Craster, Courier Six, and commander Jane Shepard as their worlds collide and both of their realities are forever altered. This Fan fic has been running for several years now, and as such starts out rough and (hopefully) gradually getting better. Please enjoy this labor of love, exploration, and experimentation on my part. I hope you come to love Rex and Jane too.
Crossover - Fallout & Mass Effect - Rated: T - English - Chapters: 40 - Words: 257,140 - Reviews: 88 - Favs: 289 - Follows: 358 - Updated: 4/27 - Published: 7/19/2014 - Courier, Veronica S., Jack, Shepard
Mass Effect demi humans by EclipsePheniox reviews
Long ago on earth demi-humans appeared on earth. Now expanding into the galaxy the other races have to deal with both humans and demi-humans. Mass effect story from beginning to end but with monster people to make it more interesting. Experimental, possible harem
Crossover - Mass Effect & Monster Girl Encyclopedia - Rated: M - English - Adventure/Sci-Fi - Chapters: 40 - Words: 136,339 - Reviews: 51 - Favs: 256 - Follows: 265 - Updated: 4/27 - Published: 8/2/2019
Ark effect Remake by EclipsePheniox reviews
After the attack on the Collector base failed, the Normandy SR-2 found themselves on Ark a planet roaming with primordial beasts. But as their Commander returns, things become more complex as they learn about Ark and the reason they are there and the purpose of the world.
Crossover - Mass Effect & ARK: Survival Evolved - Rated: T - English - Adventure/Sci-Fi - Chapters: 5 - Words: 19,391 - Reviews: 6 - Favs: 49 - Follows: 61 - Updated: 4/27 - Published: 1/3 - Liara T'Soni, Miranda L., Shepard
The Diary of a Time Lady 6: For the Glory of Sontar! by TimeTraveller-1900
The Sontaran-Terran Empire war is one of the most brutal wars in the Milky Way. Or at least it would be.
Crossover - Doctor Who & Mass Effect - Rated: K - English - Sci-Fi - Chapters: 1 - Words: 1,651 - Favs: 8 - Follows: 4 - Published: 4/26 - 3rd Doctor, Shepard - Complete
la cruzada de los perdidos by eduardogiribalde
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Crossover - Warhammer & Mass Effect - Rated: T - Spanish - Adventure - Chapters: 27 - Words: 200,434 - Favs: 1 - Follows: 2 - Updated: 4/25 - Published: 4/24
Bring on the Wrecking Machine by Anhilliator1 reviews
After the Reopening of the Eve Gate - this time to another universe entirely, it didn't take long before New Eden came into contact with the Citadel Races - or rather, when a group of pirates unwittingly stumble their way into Horde territory. Thus begins the tale of the Citadel's biggest thorn-in-the-side.
Crossover - Mass Effect & EVE Online - Rated: T - English - Humor/Adventure - Chapters: 2 - Words: 5,387 - Reviews: 14 - Favs: 62 - Follows: 89 - Updated: 4/24 - Published: 3/16
Mass effect: The Grand Admiral by MasterHunter123 reviews
A man present at the end of the Reaper war is reborn by a 'Diety', given a system, he is told to save the universe. (Anti-Hero Mc, Gamer)
Crossover - Anime X-overs & Mass Effect - Rated: M - English - Sci-Fi/Crime - Chapters: 4 - Words: 6,632 - Reviews: 8 - Favs: 37 - Follows: 52 - Updated: 4/24 - Published: 4/16
Garden of Conquest by SirBearington reviews
Being a planet can be quite challenging especially when they live in the most hostile environment known to man. Everything could technically end them. From other planets, wandering stars or even black holes. There's a never ending list of things that could ruin their day. At least they have tentacles to protect themselves. What do you mean planets aren't supposed to have tentacle?
Crossover - Cartoon X-overs & Mass Effect - Rated: M - English - Adventure/Sci-Fi - Chapters: 20 - Words: 52,818 - Reviews: 38 - Favs: 140 - Follows: 177 - Updated: 4/24 - Published: 3/1
I AM Shepard by oliverjack666 reviews
Mass effect is own by Bioware and EA. This was Inspired by ME SI: Ultimate Krogan. Though The Dimension hopping will have to wait. Freaking Squids.
Crossover - X-overs & Mass Effect - Rated: M - English - Chapters: 7 - Words: 18,794 - Reviews: 4 - Favs: 67 - Follows: 87 - Updated: 4/24 - Published: 9/19/2022
A fanfic idea of mine by ComplexProphet reviews
Posting in both fanfiction and crossover sections.
Crossover - Mass Effect & Halo - Rated: T - English - Sci-Fi/Adventure - Chapters: 1 - Words: 624 - Reviews: 4 - Favs: 2 - Follows: 3 - Published: 4/24
Anomaly Effect by Mr Ragnarok reviews
La Ciudadela es el centro de la civilización galáctica, un lugar donde conviven diferentes especies diferentes en armonía.Un día, unas naves de la Ciudadela desaparece durante una prueba de un nuevo motor FTL. Los rastreadores indican que ha saltado a un sistema estelar desconocido. Los líderes de la Ciudadela deciden investigar, encontrandoce con algo inaudito.
Crossover - Halo & Mass Effect - Rated: M - Spanish - Chapters: 2 - Words: 2,746 - Reviews: 5 - Favs: 16 - Follows: 18 - Updated: 4/23 - Published: 4/18
Story Ideas by Kirosha reviews
Various stories that may or may not be written. Some will be up for adoption.
Crossover - Harry Potter & Mass Effect - Rated: M - English - Sci-Fi - Chapters: 8 - Words: 9,827 - Reviews: 4 - Favs: 13 - Follows: 15 - Updated: 4/22 - Published: 3/6/2013
Exciting Opportunities by Of Questionable Veracity reviews
In an unexpected and highly unlikely turn of events, a catastrophic warp breach from a crippled ship manages to fling a Rogue Trader - or rather, the youngest son of a Rogue Trader - through time and space to a universe quite unlike what anyone on-board in used to. They make the best of the situation.
Crossover - Warhammer & Mass Effect - Rated: K+ - English - Chapters: 37 - Words: 201,196 - Reviews: 519 - Favs: 696 - Follows: 972 - Updated: 4/22 - Published: 4/15/2019 - J. Garson
la misma mision by eduardogiribalde
traducion de Mission Stays the Same
Crossover - Warhammer & Mass Effect - Rated: K+ - Spanish - Chapters: 6 - Words: 61,510 - Favs: 1 - Follows: 1 - Published: 4/21
Infestation of Creagach by Poseidon Productions reviews
Ripley Outpost, a small mining operation out in the Attican Traverse will be the site of an infestation of an alien species the Citadel has never expected. Starts off heavily Mass Effect before going down Aliens. Cast of OC's with some canon characters coming in later.
Crossover - Aliens/Predator & Mass Effect - Rated: M - English - Sci-Fi/Horror - Chapters: 1 - Words: 2,675 - Reviews: 1 - Favs: 1 - Follows: 2 - Published: 4/20
solo fieles by eduardogiribalde reviews
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Crossover - Warhammer & Mass Effect - Rated: T - Spanish - Adventure - Chapters: 3 - Words: 68,014 - Reviews: 1 - Published: 4/20
The Return of Hope by Masso 2010 reviews
Commander Shepard is dead. Knowing that they needed someone to complete his work fighting against the Reapers, The Illusive Man set his sights on the next best thing, Humanities greatest hero. The only problem is that Superman gave up on hero work a long time ago but can the threat of galactic extinction be enough for him to once again step into the light.
Crossover - Superman & Mass Effect - Rated: M - English - Sci-Fi - Chapters: 24 - Words: 207,633 - Reviews: 295 - Favs: 644 - Follows: 755 - Updated: 4/20 - Published: 7/10/2020 - Clark K./Kal-El/Superman, Miranda L.
Rise of the Federation Alliance: Federation-Citadel War by SimplyLaggy reviews
( AU) A Citadel Council patrol fleet stumbles upon a Starfleet exploratory fleet who just discovered a mass relay, and fires on it, sparking a war on levels beyond the Citadel's imaginations! Meanwhile, Reapers detect these newcomers, and with their superiority complex, attack early! Meanwhile, Q sits on a beach chair munching popcorn, watching, and laughing!
Crossover - StarTrek: The Next Generation & Mass Effect - Rated: T - English - Chapters: 3 - Words: 5,741 - Reviews: 25 - Favs: 122 - Follows: 183 - Updated: 4/19 - Published: 2/21 - J. Picard, Admiral Hackett, Shepard
We'll Believe a Man Can WHAT! by Thuktun Flishithy reviews
The year is 1964, though the people of the Citadel don't know that date. Earth is unknown to them, a nice little blue world in an isolated corner of the galaxy. Yet, Earth's impact on the galaxy will be known far and wide, when its greatest hero decides to broaden his reach. The galaxy's going to be a nicer place, assuming everyone's brains don't break first. Humorous snippets.
Crossover - Superman & Mass Effect - Rated: T - English - Adventure/Humor - Chapters: 10 - Words: 12,347 - Reviews: 121 - Favs: 473 - Follows: 479 - Updated: 4/19 - Published: 2/23/2017
Aggressor: Rise of Man by M.B.Liddle reviews
Mankind endures. Twice have alien invaders attempted to force humanity into extinction. Twice they have failed. Now, an uneasy peace covers the galaxy as enemies both ancient and new slumber, or pace beyond the walls. The balance is about to tip. A discovery has been made on a Human colony, faces familiar yet strange move against them, and in the middle of it all, a name. Shepard.
Crossover - Mass Effect & Resistance: Fall of Man - Rated: T - English - Sci-Fi/Horror - Chapters: 12 - Words: 73,547 - Reviews: 62 - Favs: 73 - Follows: 101 - Updated: 4/19 - Published: 3/31/2022
fe de una Adepta Sororitas by eduardogiribalde
traducion de Mass of faith
Crossover - Warhammer & Mass Effect - Rated: T - Spanish - Adventure - Chapters: 8 - Words: 80,783 - Favs: 3 - Follows: 3 - Published: 4/18
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