Mass Effect Crossovers
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Mass Effect: Web of Shadows by MacAndCheez reviews
Life was never easy for Edmond Willians, and neither was his demise, for as it turned out, Death itself made a mistake, which led to his premature demise, and so as a form of compensation, he's given the opportunity of reincarnating in any world of his choice alongside a boon choice. Now reincarnated as the soon-to-be legendary Commander Shepard, he will take the galaxy by storm.
Crossover - Mass Effect & Marvel - Rated: M - English - Adventure/Sci-Fi - Chapters: 3 - Words: 9,635 - Reviews: 15 - Favs: 40 - Follows: 55 - Updated: 2/6 - Published: 1/24 - Venom, Garrus V., Tali'Zorah, OC
Mass Effect: From Hell, We Have Come by Deathzealot reviews
The Terran Dominion, now under the control of Emperor Valerian was going to send a colonial expedition outside of the Koprulu Sector when something went wrong and the entire Expedition, along with an observing Emperor and his Guard, is sent to a whole new universe with the new technology called the Mass Effect. Still the people of this new universe are not ready! For Hell has come!
Crossover - StarCraft & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 5 - Words: 25,850 - Reviews: 9 - Favs: 43 - Follows: 50 - Updated: 2/4 - Published: 1/28 - [Valerian M., Nova]
The Last Shinobi by derTraeumer reviews
Fifty thousand years ago, the shinobi world fell to the Reapers, their potential too great a threat. Akane Uchiha, the last surviving kunoichi, awakens in the modern galaxy on Eden Prime. Joining Commander Shepard's fight, she blends ancient ninja skills with advanced tech to preserve this cycle from annihilation and ensure no world shares her home's tragic fate.
Crossover - Naruto & Mass Effect - Rated: M - English - Tragedy/Mystery - Chapters: 43 - Words: 237,411 - Reviews: 61 - Favs: 205 - Follows: 256 - Updated: 2/4 - Published: 7/4/2019 - OC, Admiral Hackett, Shepard
As The Wind Abates by DingusMacGoo reviews
After witnessing the death of his oldest friend, an immortal Harry Potter turns to the stars in an attempt to find meaning in his life.
Crossover - Harry Potter & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 41 - Words: 96,496 - Reviews: 337 - Favs: 1,080 - Follows: 1,501 - Updated: 2/2 - Published: 2/6/2024 - Harry P., J. Garson, Shepard
The N7 and Avatar by EclipsePheniox reviews
Commander Shepard and Avatar Korra have switched places. No one knows how or why, but one thing is for sure it's not good. Both the crew of the Normandy and Team Avatar must team up to solve the problem they both face. Korrasami, Shep/ Miranda. Teen, for now, possibly M later.
Crossover - Mass Effect & Legend of Korra - Rated: T - English - Sci-Fi/Fantasy - Chapters: 10 - Words: 26,488 - Reviews: 7 - Favs: 17 - Follows: 26 - Updated: 2/2 - Published: 3/19/2024 - Miranda L., Shepard, Korra, Asami S.
Sith Effect Episode II: The Skyllian Blitz by Metagray reviews
Having a seat on the council for almost two decades, the influence of the Sith has seeped into almost all aspects of Citadel space and has made them enemies within The Terminus Systems and Batarian Hegemony. John Shepard, Sith Apprentice, finds himself in this conflict with his loved ones at risk and only The Force to turn to in his darkest hour. Through Passion we gain Strength.
Crossover - Star Wars & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 4 - Words: 19,747 - Reviews: 117 - Favs: 803 - Follows: 1,070 - Updated: 2/1 - Published: 7/18/2024 - D. Anderson, Admiral Hackett, Shepard, Hannah S.
Super Robot Wars ME by Anhilliator1 reviews
The year is GC 0070. Nearly three decades have passed since the arrival of the Systems Alliance shook the wider galaxy to its core. While the fires of war within the Alliance have died down, the embers still burn, many beyond the borders of Alliance Space, threatening to ignite once more. And in the background, an ancient threat begins to stir.
Crossover - Mass Effect & Super Robot Wars - Rated: T - English - Sci-Fi/Adventure - Chapters: 2 - Words: 1,344 - Reviews: 3 - Favs: 7 - Follows: 9 - Published: 2/1 - Shepard, OC
El Noble del Normandía Halo x Mass Effect by Aghriik
Reach, el bastión de la humanidad, ha caído. Uno de los Spartans del equipo Noble se quedó atrás para proteger al Pillar of Autumn, El es conocido como el Fantasma Viviente, el Lobo Solitario, la Parca Personal de la ONI... o simplemente, Noble Seis. Ahora, lejos de su hogar y su tiempo, deberá levantarse una vez más. No solo por un planeta. No solo por una especie. Una galaxia.
Crossover - Halo & Mass Effect - Rated: T - Spanish - Sci-Fi/Romance - Chapters: 16 - Words: 143,816 - Favs: 5 - Follows: 5 - Updated: 1/27 - Published: 1/6 - [SPARTAN-B312/Noble Six, Tali'Zorah] [Garrus V., Shepard]
Tali'Zorah: Demonologist by Sheev314 reviews
I DO NOT OWN MASS EFFECT ALSO THE FIRST TWO CHAPTERS WILL HAVE HORROR ELEMENTS IN IT Tali'Zorah's pilgrimage on a haunted world turns into an adventure with the demon known as Shepard. Can she and her new infernal friend save the galaxy from the Reapers, or will the universe burn in the fires of a new war.
Crossover - Mass Effect & Pathfinder RPG - Rated: M - English - Sci-Fi/Horror - Chapters: 3 - Words: 14,582 - Reviews: 12 - Favs: 20 - Follows: 29 - Updated: 2/1 - Published: 11/19/2024 - Tali'Zorah, Shepard
Ananke by Onyx Gungnir reviews
Explorers from the four Council species activated a dormant relay at the edge of charted space, hoping to find new planets that someone could one day call home and answers to ancient questions. But what they found was not a new home but a shattered planet—and in its orbit, something that would change everything for them. Mass Effect x Halo x BSG crossover.
Crossover - Halo & Mass Effect - Rated: M - English - Chapters: 2 - Words: 11,113 - Reviews: 31 - Favs: 148 - Follows: 229 - Updated: 2/1 - Published: 12/1/2024
Boundaries Displaced by Hirowolfgang reviews
When a dormant Mass Effect is activated by Battarian pirates, it is affected by a mysterious phenomenon that displaces the Dreikruz en route to their final confrontation with the Quaestors. Now stranded Mitsuba and the Dreikruz have to put differences aside in order to work together with the Normandy SR-2 against the Collectors and the following Reaper war. For better or worse.
Crossover - Mass Effect & Super Robot Wars - Rated: M - English - Sci-Fi/Drama - Chapters: 10 - Words: 53,757 - Reviews: 21 - Favs: 39 - Follows: 58 - Updated: 1/31 - Published: 2/28/2023 - Garrus V., Shepard
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: 6 - Words: 11,819 - Reviews: 44 - Favs: 80 - Follows: 135 - Updated: 1/31 - Published: 5/10/2020
The Terminus Exarchate by infamouswestgate reviews
Qelet B'Norai, Batarian cartel-kin and agent of the Covenant, travels the swallowed-yet-undigested worlds of the Terminus Exarchate! Can he save the Covenant Empire from collapsing underneath its own great weight?
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 24 - Words: 70,638 - Reviews: 36 - Favs: 17 - Follows: 23 - Updated: 12/1/2024 - Published: 9/11/2024
The Traveler's Second Chance by Caldesan reviews
The Traveler has a different response to the Darkness. A story where the Guardians never accept the Darkness. The Traveler gave them a second chance, what do they do with it? Destiny shows up in Mass Effect. OC's for Destiny MC and Ghosts, different take on Destiny Lore
Crossover - Mass Effect & Destiny - Rated: M - English - Adventure/Romance - Chapters: 10 - Words: 95,286 - Reviews: 26 - Favs: 156 - Follows: 207 - Updated: 1/27 - Published: 8/6/2023
Agent Murphy S Law by Darkstar the Grimm reviews
That time I became an agent of the IMF tasked with completing missions across all of time and space. Killing monsters, fighting villains and saving people by derailing canon events. SIOC x Miranda Lawson x multicross girls.
Crossover - Fate/stay night & Mass Effect - Rated: M - English - Romance/Humor - Chapters: 6 - Words: 11,965 - Reviews: 4 - Favs: 18 - Follows: 18 - Updated: 1/27 - Published: 12/6/2024 - [OC, Miranda L.]
A new world, the same old struggle by O pior reviews
A psychic soldier and survivor from the ruins of Fairport finds himself in a new world with apparently a chance to start over. But when the demons of his past threaten to resurface, he must prevent this new world from falling victim to another supernatural damage, running into a certain commander in a quest to save the galaxy in the process.
Crossover - Mass Effect & F.E.A.R. - Rated: T - English - Adventure/Supernatural - Chapters: 6 - Words: 63,116 - Reviews: 25 - Favs: 105 - Follows: 128 - Updated: 1/26 - Published: 6/7/2021 - Alma W., OC, Tali'Zorah, Shepard
Halo Effect by kamilospl1312 reviews
What if UNSC replace System Allience from Mass Effect
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 5 - Words: 15,941 - Reviews: 62 - Favs: 98 - Follows: 161 - Updated: 1/26 - Published: 8/12/2024
Galactic Warbooks by DeafeningEcho
Throughout countless galaxies, civilizations have warred in the stars, clashing with their warships over endless worlds. Each of these civilizations calls their ships something different, let’s find out what those are.
Crossover - Mass Effect & Halo - Rated: K - English - Sci-Fi - Chapters: 8 - Words: 15,499 - Favs: 2 - Follows: 4 - Published: 1/24
Shadows and Dust by HistoricalHijinks reviews
Shattered, Reborn, Reforged, Remade. The gaze of the Pheonix Force, seeking purpose and understanding, falls upon the Reapers and their harvests. Disgusted by their perverted, farcical 'cycle', it decides to wipe their stain from the multiverse. Needing a perfect host, it waits tens of millennia until, as Hannah Shepard is miscarrying due to eezo radiation, it finds one in her womb
Crossover - X-Men & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 8 - Words: 43,410 - Reviews: 93 - Favs: 397 - Follows: 534 - Updated: 1/24 - Published: 6/25/2023 - Ashley W., Liara T'Soni, Shepard
Deathwatch: Embers (the Citadel incident) by Imperiumpilled30k reviews
999.m41 the brothers of Kill-Team Embers have been sent on what should have been a routine purging of Orkz in the Octurus sector, however something is a foot, a missing inquisitor and strange device make for a deadly pairing...with this encounter setting forth a much more dangerous chain of events... (please leave reviews)
Crossover - Warhammer & Mass Effect - Rated: M - English - Sci-Fi/Fantasy - Chapters: 7 - Words: 50,451 - Reviews: 30 - Favs: 101 - Follows: 123 - Updated: 1/24 - Published: 7/14/2024 - Space Marines, Deathwatch, U. Wrex, Shepard
Slayer Effect by XAgent-Venom666X reviews
Flynn Taggart once had a different life, one he could remember before becoming the Slayer. But he has long since put that behind him. Killing the denizens of Hell had become his new reality and he accepted it completely. After vanquishing the Icon of Sin, he was catapulted into another universe he knew from his old life. Now he has new, yet familiar, enemies to Rip and Tear.
Crossover - Doom & Mass Effect - Rated: M - English - Sci-Fi - Chapters: 20 - Words: 96,762 - Reviews: 632 - Favs: 1,963 - Follows: 2,340 - Updated: 1/22 - Published: 11/19/2020 - [OC, Liara T'Soni] Doomguy, Shepard
Solar Knight by SirPotat reviews
A warrior estranged from the lands he fought to save. Facing an expanse far larger than he could ever comprehend. That however is irrelevant, for he is not just a Guardian, he is a Titan. He is a warden against evil and a shield for the weak. No matter where he is, no matter his circumstances. He will fight, for that is what he was reborn to do.
Crossover - Mass Effect & Destiny - Rated: M - English - Chapters: 2 - Words: 6,467 - Reviews: 10 - Favs: 26 - Follows: 32 - Updated: 1/22 - Published: 1/14 - OC
Stellar Spirit's Effect by vmoneywashere reviews
Two collections of civilizations on separate sides of the galaxy. Both having fought wars and calamities alike. Going through their own advancements, trials, and wars. Soon they will be brought together, to fight on the same side. (ME/Kancolle/Stellaris Fanfic)
Crossover - Mass Effect & Kantai Collection - Rated: T - English - Sci-Fi/Adventure - Chapters: 2 - Words: 3,833 - Reviews: 4 - Favs: 14 - Follows: 18 - Published: 1/20 - Garrus V., Shepard, Primarch Adrien Victus, OC
Mythos Effect by Omniscent1 reviews
A crossover between Mass Effect and Cthulhutech. Humanity has won the Aeon War and has since expanded and thrived. How will the galaxy fare with this new power?
Crossover - Cthulhu Mythos & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 31 - Words: 270,866 - Reviews: 2159 - Favs: 5,528 - Follows: 6,345 - Updated: 1/20 - Published: 6/5/2013 - Saren A., Shepard, OC
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