Mass Effect Crossovers
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A Change of Fate by kaln7 reviews
The Colonials search for the Thirteenth tribe after the fall of their colonies maybe at an end, when they make contact with the Systems Alliance, but will Earth lend them a hand or will the Cylons destroy them all.
Crossover - Battlestar Galactica: 2003 & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 17 - Words: 113,475 - Reviews: 228 - Favs: 424 - Follows: 593 - Updated: 1/1 - Published: 4/8/2017
Stargate A New Age by kaln7 reviews
Shepard defeated the Collectors, but now he must face a universe different from his own, but his team won't be the only team to help him get through this uncertain future.
Crossover - Stargate: SG-1 & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 17 - Words: 151,582 - Reviews: 172 - Favs: 285 - Follows: 401 - Updated: 1/1 - Published: 4/6/2017
The Irregular Blade Effect by ferduran reviews
Sequel of Unlimited Rettousei. Had you ever wondered what would happen if the Citadel council meet a species that all its members have powers like the Asari but different, has a stronger military like the Turian, and tech more advance than the Salarian. All that without element zero, but more importantly, they do not want to follow their orders.
Crossover - Fate/stay night & Mass Effect - Rated: M - English - Fantasy/Sci-Fi - Chapters: 6 - Words: 62,024 - Reviews: 155 - Favs: 635 - Follows: 815 - Updated: 12/31/2023 - Published: 12/8/2021
Galaxia en Convergencia: El Acenso de Dax Cyband by saninkarurosu501
Han pasado 5 años desde que Dax Cyband llego a la Vía Láctea, su verdadera identidad esta oculta, nadie sabe de donde viene. Vive lo que hace mucho tiempo deseaba una vida de paz, pero la paz no es duradera, fuerzas obscuras compiten por la dominación de la galaxia. ¿Se quedara al margen? o ¿O será un caballero jedi por ultima vez?. La voluntad de la fuerza ha cambiado la historia
Crossover - Star Wars & Mass Effect - Rated: T - Spanish - Adventure/Sci-Fi - Chapters: 3 - Words: 23,026 - Favs: 2 - Follows: 6 - Published: 12/30/2023 - OC, Ashley W., Tali'Zorah, Shepard
Mario Effect by OroDeus
Haunted by visions of impending doom, Mario summons his ragtag team of explorers to adventure. Their journey across the stars will uncover the koopa king's horrible plot to take over the galaxy.
Crossover - Mario & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 2 - Words: 2,068 - Favs: 1 - Follows: 2 - Updated: 12/28/2023 - Published: 12/27/2023 - Mario, Luigi, Daisy, Toad
The Star Union by ImageViewer reviews
In the Year 2015, Earth was attacked by an unknown Alien Empire. With X-com they fought the alien menace again and again, overcoming the Odds and Forging a new Empire comprised of the former enemies enslaved to the Elder's will. Now forged into an empire the likes of which the galaxy hasn't seen, they take their first steps into the great Unknown. Major Crossovers and OCs.
Crossover - Mass Effect & X-Com - Rated: M - English - Sci-Fi/Adventure - Chapters: 5 - Words: 48,483 - Reviews: 37 - Favs: 349 - Follows: 474 - Updated: 12/28/2023 - Published: 7/17/2021 - Liara T'Soni, Tali'Zorah, Shepard, OC
Displaced Destiny by TheCandyManCant reviews
Rigel faced extinction every day of his life, fighting an unending tide of enemies to safeguard his people. When the time came for one last sacrifice, he didn't hesitate. But Destiny had other plans for him... I do not own any established properties and receive no monetary compensation for this fanfic.
Crossover - Mass Effect & Destiny - Rated: M - English - Chapters: 36 - Words: 156,980 - Reviews: 85 - Favs: 227 - Follows: 311 - Updated: 12/28/2023 - Published: 11/19/2023
Drift Effect by Demon Eyes Laharl reviews
In the early 21st Century, Humanity made First Contact. By the end of it, they lost Earth. However, they survived, carving their place in the sea of stars, hoping one day to finally retake back their home world. The void, though, is a dangerous place. Another alien artifact was found near one of their border worlds, which would lead to another conflict.
Crossover - Mass Effect & Misc. Movies - Rated: M - English - Chapters: 11 - Words: 89,311 - Reviews: 67 - Favs: 198 - Follows: 293 - Updated: 12/27/2023 - Published: 8/13/2023
Untamed by ChaosSpartan575 reviews
Shepard activated the Crucible and instead of dying, landed in Westeros during the Long Night. She aided a man known as the Last Hero in defeating the Others earning the title, the Red Vixen. Now her decedents thousands of years later have gotten caught up in the War of the Five Kings. Will House Shepard survive the coming winter? Rated M.
Crossover - Mass Effect & Game of Thrones - Rated: T - English - Suspense/Adventure - Chapters: 3 - Words: 17,149 - Reviews: 25 - Favs: 159 - Follows: 200 - Updated: 12/26/2023 - Published: 8/10/2017
Salvation (ENG) by Z0n3theDaMn3d reviews
The knowledge of sin is the beginning of salvation. More than 40 years after the end of the war against the Covenant, a new storm is brewing on the edge of the human empire. Will the colonies of the Linwood Sector be able to withstand this new threat or will they burn like Harvest once did?
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 10 - Words: 87,307 - Reviews: 154 - Favs: 395 - Follows: 582 - Updated: 12/26/2023 - Published: 10/8/2020 - T. Hood, Shepard, Councilor Tevos, Benezia
Operation ECLIPSE by HelenTheMoon reviews
Pre-ME1 post-Frontiers Xover, in which the Sonic version of Earth replaces ME Earth. A Batarian planet suddenly turns invisible, and things only get weirder from there. That poor STG agent won't know what hit him, that's for sure. And neither will the rest of the galaxy - once Sonic and Eggman get there. Crossposted on Spacebattles and AO3. Rating may change.
Crossover - Sonic the Hedgehog & Mass Effect - Rated: T - English - Sci-Fi/Fantasy - Chapters: 4 - Words: 36,697 - Reviews: 7 - Favs: 40 - Follows: 52 - Updated: 12/25/2023 - Published: 11/26/2023 - Sonic, Tails, OC
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: 4 - Words: 21,450 - Reviews: 40 - Favs: 241 - Follows: 333 - Updated: 12/22/2023 - Published: 6/25/2023 - Ashley W., Liara T'Soni, Shepard
Judgement Effect by The Dullahan of Lore reviews
Having been cast into the ME-verse; Xander was 'saved' by a rogue scientist who took advantage of subconscious memories for the creation of A.I. Xander was transformed. he became...Skynet. YAHF!Xander. Rated M just in case at this point.
Crossover - Buffy: The Vampire Slayer & Mass Effect - Rated: M - English - Sci-Fi/Drama - Chapters: 2 - Words: 5,810 - Reviews: 11 - Favs: 58 - Follows: 76 - Published: 12/20/2023 - Xander H., Benezia
Dreams of Vengeance by Arch Magos Belacaruius Cronus reviews
Is it too much to ask for a millennia or two of sleep? For one twice dead child of the Dominus Nox, rest won't be coming easily any time soon... (rated M for gore)
Crossover - Warhammer & Mass Effect - Rated: M - English - Adventure - Chapters: 4 - Words: 4,303 - Reviews: 12 - Favs: 62 - Follows: 96 - Updated: 12/20/2023 - Published: 9/20/2022 - OC, Chaos Space Marines, Shepard
The Rise of the Enclave by 6-4 pilot reviews
Stuck in a more peaceful galaxy, the Tau of the Farsight Enclave must still prepare themselves for war against the forces that conspire to destroy it. But as they fight for their existence, elements from their old home come to strengthen their power in said old home.
Crossover - Warhammer & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 20 - Words: 101,242 - Reviews: 144 - Favs: 361 - Follows: 406 - Updated: 12/19/2023 - Published: 4/20/2020 - Chaos Space Marines, Tau, Legion, Shepard
Destiny Lost by Twisted Fate MK 2 reviews
The Gods left remnant together, with the statement they would never return to it or influence it. Only, that wasn't true, was it? The God of light, ever the hypocrite and liar, didn't abandon Remnant. Instead, he reincarnated someone to do his bidding and bring Remnant to them. Cue, the now dead Pyrrha Nikos and the God of Darkness' ideas. / Supporter Requested by Espacole & Spork
Crossover - Mass Effect & RWBY - Rated: M - English - Adventure - Chapters: 83 - Words: 326,880 - Reviews: 827 - Favs: 832 - Follows: 1,105 - Updated: 12/18/2023 - Published: 5/5/2019 - Legion, Pyrrha N., Penny P., God of Darkness
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: 5 - Words: 10,505 - Reviews: 35 - Favs: 68 - Follows: 115 - Updated: 12/17/2023 - Published: 5/10/2020
Final Destination by The Abyssal Writer reviews
Dr. Datenshi had seen it all. He was there when Admiral Perry ended Japan's Isolationism, he was there when Emperor Meiji turned Japan into a World Power, he was there during the Greatest Generation of Demon Slayers. He was there when Humanity looked to the stars, and joined a galactic community. Dr. Datenshi had seen it all… But Fate, it seemed, wasn't done with him yet.
Crossover - Mass Effect & Kimetsu no Yaiba/鬼滅の刃 - Rated: T - English - Adventure/Sci-Fi - Chapters: 2 - Words: 10,249 - Reviews: 6 - Favs: 41 - Follows: 78 - Updated: 12/17/2023 - Published: 10/6/2023 - Liara T'Soni, Tali'Zorah, Shepard, OC
Destino en Masa by Agusfedredhunter reviews
Todos conocen el juego de Mass Effect pero no muchos conocen el juego Destiny por lo que eh decidido conectarlos. La humanidad, estando en una posición mucho mejor que la que tuvieron en su edad de oro se encuentra con un artefacto alíen desconocido que los conecta con el resto de la galaxia y a las razas que lo habitan (Las actualizaciones podran tardar un tiempo en llegar)
Crossover - Mass Effect & Destiny - Rated: T - Spanish - Drama/Adventure - Chapters: 5 - Words: 36,614 - Reviews: 4 - Favs: 18 - Follows: 19 - Updated: 12/16/2023 - Published: 9/20/2023 - Shepard, Awoken, Exo, Human
Feared Reverence by ayab reviews
376 years after the battle between heaven and earth. Two humans have achieved godhood. Using their power to guide humanity to the stars. How will the galaxy react to see a species so advanced yet so primitive? So powerful yet not wanting to use their power. They are what the citadel race aspires to be and hates because of their jealousy.
Crossover - Naruto & Mass Effect - Rated: T - English - Fantasy/Sci-Fi - Chapters: 26 - Words: 95,655 - Reviews: 190 - Favs: 314 - Follows: 436 - Updated: 12/14/2023 - Published: 1/14/2023
X overs the Union by flaming hunter reviews
There is a darkness amongst the stars. Something that looks for anything good in the universe before taking it and corrupting it. Many call it by different names but most simply call it the Union.
Crossover - Game X-overs & Mass Effect - Rated: T - English - Adventure/Sci-Fi - Chapters: 11 - Words: 13,280 - Reviews: 7 - Favs: 6 - Follows: 8 - Updated: 12/13/2023 - Published: 11/29/2023
Bellum Terranum by F35B reviews
By 2570 the Milky Way was on the track towards healing from the conflicts that plagued the Orion Arm. However, the final remnants of Storm Covenant have led the Humans/Terrans and their Sangheili Allies to a new artifact on the old Human Colony of New Shanxi, whilst the Council is still amid the Geth Conflicts. The bandaid of the Milky Way will be ripped off, revealing deep wounds.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 2 - Words: 10,008 - Reviews: 157 - Favs: 364 - Follows: 555 - Updated: 12/12/2023 - Published: 7/31/2023
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: 43 - Words: 147,106 - Reviews: 60 - Favs: 279 - Follows: 298 - Updated: 12/12/2023 - Published: 8/2/2019
Mobile Suit - Mass Effect: The First Contact War by Mister Smallville reviews
Two worlds collide, neither prepared for the other. The Solar Sphere Congress -successor to the long gone Earth Federation- unwittingly starts a galactic crisis when it makes first contact with a very angry, very trigger happy Turian Hierarchy.
Crossover - Gundam UC & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 11 - Words: 66,323 - Reviews: 132 - Favs: 257 - Follows: 381 - Updated: 12/12/2023 - Published: 8/7/2023
The Rook by Twisted Fate MK 2 reviews
On the way down to New Mombasa, Rookie falls into the Slipspace Rupture and ends up crashing down on Menae, high above Palaven, right in the midst of the Reaper War. From there, the war itself will shift and the fighting persists, but who knows what an ODST will add to the mix. (Redo of an older story)
Crossover - Halo & Mass Effect - Rated: M - English - Adventure - Chapters: 14 - Words: 50,152 - Reviews: 124 - Favs: 469 - Follows: 698 - Updated: 12/12/2023 - Published: 7/8/2022 - Rookie, Shepard
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