Mass Effect Crossovers
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Mass Effect: Spider and Wolf by Night Shadow76 reviews
The Spider-verse has been saved, the Inheritors had been defeated, and all is well. Well, except for one Spider. With his home gone and destroyed, he has no where to go, but with aid from Madam Web and The Other, he will have a new home, once that's on the edge of destruction. Now if only he could make sense of how Asari breeding works. Based loosely on the Inheritors storyline.
Crossover - Spider-Man & Mass Effect - Rated: M - English - Adventure - Chapters: 8 - Words: 50,827 - Reviews: 36 - Favs: 51 - Follows: 71 - Updated: 8/24 - Published: 6/12 - OC
Outlaws of the Verse (Unofficial Sequel: The Last Spartan by DinoJake) by Omniva Verse reviews
1000 years after the Reapers were reprogrammed, 3 powers fight for dominance in the galaxy. The Space Forces, Pirates, and of course The Outlaws. (Multi-Xover, AU, Unofficial Sequel): Ship's Crew and Lore, from various other franchises
Crossover - Mass Effect & Halo - Rated: T - English - Sci-Fi/Family - Chapters: 10 - Words: 82,969 - Reviews: 4 - Favs: 15 - Follows: 14 - Updated: 8/28 - Published: 10/21/2023 - OC, OC, Master Chief/John-117, Shepard
Mass Effect: Reaper T8 by ArcherEdgeBond reviews
A Reaper threat and three different Sheppards. how will the universe handle this. follow Geoff, John, and Jane Shepard as they fight the reapers for survival and fight a new threat soon to take hold.(this was a challenge given to me by my friend the unforgivenone19901. if you have not checked out his work please do) (Disclaimer: I do not own the rights, this is purely fanmade)
Crossover - Terminator & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 13 - Words: 34,646 - Reviews: 1 - Favs: 14 - Follows: 12 - Updated: 8/23 - Published: 2/25/2020
The long way home by DeltaSev reviews
Auraxis year 2945. The TR, NC and VS signs an uneasy peace with each other. They expand across the Luminair system, and start to explore outwards with the new FTL and Wormhole Teleportation. The wormhole from years ago has sent them even further away from the Earth they know and the Galaxy they lived in. Happening during the events of Mass Effect 2.
Crossover - PlanetSide & Mass Effect - Rated: M - English - Adventure/Sci-Fi - Chapters: 4 - Words: 18,559 - Reviews: 6 - Favs: 25 - Follows: 36 - Updated: 8/23 - Published: 9/12/2023 - Miranda L., Jacob T., Shepard
Mass Effect: EXT SIGMA by IceFoxie reviews
The UNSC Infinity and her fleet escape the Didact's final bid to stop humanity from claiming the Mantle. By using the EXT SIGMA protocol, the fleet finds itself in uncharted space. Humans don't exist in this Mass Effect. How will the natives react to the UNSC refugees?
Crossover - Halo & Mass Effect - Rated: M - English - Adventure/Drama - Chapters: 9 - Words: 42,791 - Reviews: 50 - Favs: 188 - Follows: 257 - Updated: 8/22 - Published: 7/28
New Start Plus: in spaaaaace! by omaster43 reviews
Nick Walters and his merry band of misfits are back with a story about helping Shepard and crew fight giant eldritch robot abominations, most likely through Dumb magic and crazy shenanigans This is a continuation of my previous story, so reading that one first is recommended. but I'm not your nanny you wanna be confused that's your choice. Oc-insert, just came from Dragon age
Crossover - Game X-overs & Mass Effect - Rated: M - English - Humor/Adventure - Chapters: 15 - Words: 370,679 - Reviews: 144 - Favs: 374 - Follows: 445 - Updated: 8/20 - Published: 6/6/2023 - Garrus V., Tali'Zorah, Shepard
Mass Effect 10 Ben Second Chance by benguin reviews
Here is a world for both Ben 10 and mass effects Fans, but basically it like any story where ben world is gone and lives in another universe to move on from the pain. I do not Own Ben 10 and Mass effect. They are owned by they respected properties of Man of Action and Bioware. Please support the official release.
Crossover - Ben 10 & Mass Effect - Rated: T - English - Sci-Fi/Romance - Chapters: 22 - Words: 66,923 - Reviews: 30 - Favs: 70 - Follows: 75 - Updated: 8/20 - Published: 2/15 - [Ben T., Miranda L.] Ship, Shepard
Effects of Man by Krotosin reviews
During the shitshow that Eden Prime was, Shepard finds a man buried near the Beacon. With him, two AIs, one from Reach, the other from Typhon. With him at her side, Jane's mission is easier. If it wasn't for the fact he's a hyper-lethal killing machine, with malware stuck in his head. And a bit of an odd case. Mostly Titanfall and Halo, with some (a lot) Deep Rock Galactic.
Crossover - Mass Effect & Titanfall - Rated: M - English - Sci-Fi/Adventure - Chapters: 7 - Words: 43,373 - Reviews: 14 - Favs: 122 - Follows: 160 - Updated: 8/20 - Published: 6/10/2023 - OC
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: 30 - Words: 119,202 - Reviews: 209 - Favs: 386 - Follows: 492 - Updated: 8/19 - Published: 1/14/2023
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: 28 - Words: 100,769 - Reviews: 189 - Favs: 609 - Follows: 898 - Updated: 8/18 - Published: 7/8/2022 - Rookie, Shepard
XCOM: Enemy Expanded by DarthHollow reviews
We defeated the Elders. We took their technology and made it our own to advance into the stars. After so long we surprisingly made allies while unsurprisingly made enemies. Now we find our place and stand firm in this galaxy. Pray to those that believe us weak. For we will not.(Rewrites in progress!)
Crossover - X-Com & Mass Effect - Rated: M - English - Sci-Fi - Chapters: 9 - Words: 41,424 - Reviews: 64 - Favs: 274 - Follows: 420 - Updated: 8/17 - Published: 8/6/2020
Quintessence Effect Collective Rebirth by EvaShinobiKaiserKnight reviews
Two Years have passed since the Paladins and the Normandy had suffered the tragedy of loss. A year since the Altean's have begun to return to the galaxy after the second battle of the Citadel. But the Reapers are not done as the Paladins and a revived John Shepard must gather allies to face this threat. This is their Rebirth into a new world of wonders as Heroes. NOW FORM VOLTRON!
Crossover - Mass Effect & Voltron: Legendary Defender - Rated: M - English - Sci-Fi/Family - Chapters: 3 - Words: 32,205 - Reviews: 15 - Favs: 23 - Follows: 25 - Updated: 8/15 - Published: 8/11 - [OC, Princess Allura]
Galaxia en Convergencia: El Acenso de Dax Cyband by ElNovelista501
Eh Jugado otra vez los juegos de Mass Effect y me eh encontrado con varias inconsistencias en mi historia, asi que comenzare a realizar una reescritura de la historia.
Crossover - Star Wars & Mass Effect - Rated: T - Spanish - Adventure/Sci-Fi - Chapters: 1 - Words: 5,898 - Favs: 3 - Follows: 7 - Updated: 8/14 - Published: 12/30/2023 - OC, Ashley W., Tali'Zorah, Shepard
Same Story, different World by KE12 reviews
After choosing Synthesis Shepard (F) awakes to find she is on Earth, just not her Earth, and with a parastic AI in her head. Aloy meanwhile questions just who she has found, and tries to figure out if this entity can be the answer to all her problems. Set during HZN Forbidden west.
Crossover - Mass Effect & Horizon Forbidden West - Rated: K - English - Adventure - Chapters: 1 - Words: 3,339 - Reviews: 6 - Favs: 21 - Follows: 29 - Published: 8/13 - Harbinger, Shepard, Aloy, Erend/Erend Vanguardsman
Halo Effect by kamilospl1312 reviews
What if UNSC replace System Allience from Mass Effect
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 1 - Words: 2,001 - Reviews: 19 - Favs: 36 - Follows: 65 - Published: 8/12
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: 2 - Words: 9,212 - Reviews: 70 - Favs: 657 - Follows: 881 - Updated: 8/12 - Published: 7/18 - D. Anderson, Admiral Hackett, Shepard, Hannah S.
Mass Wars Episode II by Fantasymaker76 reviews
Five Years have past since the destruction of the Normandy and the death of Commander Shepard. Now a new order is rising in the unmapped regions of the galaxy which is leaving unease in both the Republic and the Citadel. Determined to find out what is going on, a pro-human organisation has made plans to find out what this mysterious group wants.
Crossover - Mass Effect & Star Wars - Rated: M - English - Sci-Fi/Adventure - Chapters: 9 - Words: 44,317 - Reviews: 17 - Favs: 44 - Follows: 49 - Updated: 8/12 - Published: 3/13/2023
Mass Effect: A lone hunter by GojiraGodzillafan1 reviews
Mass Effect x Destiny 2 A single guardian will arrived to the mass effect space system, for he is needed to help out a certain future Spector and her crew deal with there problems. But not just that systems problems, a couple problems from the Guardians system as well. Disclaimer, I own nothing in this story except my guardian
Crossover - Destiny & Mass Effect - Rated: M - English - Adventure/Romance - Chapters: 3 - Words: 14,367 - Reviews: 8 - Favs: 20 - Follows: 27 - Updated: 8/11 - Published: 7/24 - OC, Tali'Zorah, U. Wrex, Ghost
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: 7 - Words: 18,688 - Reviews: 1 - Favs: 10 - Follows: 21 - Updated: 8/11 - Published: 3/19 - Miranda L., Shepard, Korra, Asami S.
The Bureau of Multiverse Affairs by RedFrontWriter reviews
Recruited by the mysterious Lutece twins, a band of heroes are sent on a mission to hunt down the sinister Professor Moriarty as he attempts to become the greatest criminal in the multiverse.
Crossover - Doctor Who & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 26 - Words: 116,954 - Reviews: 1 - Favs: 7 - Follows: 11 - Updated: 8/11 - Published: 3/3 - 4th Doctor, Sarah Jane S., Garrus V., Tali'Zorah - Complete
Quintessence Effect the Rise of Lotor by EvaShinobiKaiserKnight reviews
A year has passed since the battle of the Citadel. Haggar has all but vanished and despite tragedy the Paladins continue to defend the Universe. But those from the ancient past have arrived seeking the aid of these new Paladins. A clue to her people is found. Now the Paladins must aid the mysterious Lotor to save not only the Alteans but construct a weapon to defeat the Reapers.
Crossover - Mass Effect & Voltron: Legendary Defender - Rated: M - English - Sci-Fi/Adventure - Chapters: 8 - Words: 70,795 - Reviews: 14 - Favs: 29 - Follows: 30 - Updated: 8/10 - Published: 8/2 - [Princess Allura, OC] Lotor - Complete
Frontlines: the Attican Front by vmoneywashere reviews
For over half a decade, the Citadel is losing a war against the race simply nicknamed the Friskies (Lankies). Their worlds slowly being lost, armies even numbers in the hundreds of thousands wiped off the map, and millions dead. But hope can be found. A signal detected off in the Attician Traverse. A recon force ventures out: To find a duel between Humanity and the Lankies.
Crossover - Misc. Books & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 5 - Words: 25,105 - Reviews: 31 - Favs: 168 - Follows: 246 - Updated: 8/10 - Published: 9/4/2023
Galactic Conflicts: Tales of First Contact by TheDoctor1998 reviews
Humanity and its allies have stood strong after the Great War with the Covenant. Follow the Systems Alliance as it goes through a first contact nearly as disastrous as the one that lead to the Great War.
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi - Chapters: 9 - Words: 41,377 - Reviews: 210 - Favs: 443 - Follows: 613 - Updated: 8/7 - Published: 2/6/2023
Mass Cross Frontier by weebee reviews
The culmination of several terrible ideas. From an il-advised scientific expedition, to the Illusive man's shifting plans, to a couple of authors who should really know better. No, it's not what you think.
Crossover - Anime X-overs & Mass Effect - Rated: T - English - Humor/Adventure - Chapters: 6 - Words: 68,934 - Reviews: 25 - Favs: 60 - Follows: 78 - Updated: 8/7 - Published: 1/29/2021
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: 29 - Words: 246,813 - Reviews: 2058 - Favs: 5,361 - Follows: 6,162 - Updated: 8/6 - Published: 6/5/2013 - Saren A., Shepard, OC
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