Mass Effect Crossovers
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Unknown Territory by giblo126 reviews
Earth was under siege by the Strogg, with no escape in sight. When the Turians find them, they're quick to jump in to the fray. But they just might open up a war none of them saw coming...
Crossover - Quake & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 5 - Words: 6,206 - Reviews: 24 - Favs: 39 - Follows: 47 - Updated: 9/3 - Published: 6/15
The Sins of our Fathers by MarkerMagnum reviews
Unknown to the Citadel Council, the Human-Covenant war nears its vicious end. Miranda Keyes is seconds too slow. Delta Halo fires, leaving UNSC space as a lifeless snapshot in time. The Citadel must morn the loss of a civilization they never knew.
Crossover - Halo & Mass Effect - Rated: T - English - Drama/Sci-Fi - Chapters: 14 - Words: 147,748 - Reviews: 590 - Favs: 1,602 - Follows: 2,126 - Updated: 9/1 - Published: 2/11/2023 - Cortana, Councilor Valern, Councilor Tevos, Councilor Sparatus
Operation ECLIPSE - Apocrypha and Sidestories by HelenTheMoon reviews
Omakes, sidestories and Apocrypha written by me and others for Operation ECLIPSE. The Sidestories are canon, the rest just for fun. Feel free to submit content yourselves! (I'll credit you, obviously) NOW WITH A TV TROPES PAGE!
Crossover - Sonic the Hedgehog & Mass Effect - Rated: T - English - Chapters: 29 - Words: 28,350 - Reviews: 45 - Favs: 32 - Follows: 25 - Updated: 9/1 - Published: 12/25/2023
Enduring the Flames of War by Masterdude21 reviews
A joint Asari-Turian operation salvaged a "package" from a derelict wreckage in the Terminus Systems, whereupon they release a force of war beyond their reckoning. Hoping to avoid another war, Commander Shepard recruits the "package" into her team. A simple act of kindness, unwittingly paving the way for a clash unlike the galaxy has ever seen. Fate directs the flames of war.
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi/Horror - Chapters: 51 - Words: 766,431 - Reviews: 2631 - Favs: 4,121 - Follows: 4,947 - Updated: 8/31 - Published: 11/30/2015 - Master Chief/John-117, OC, Shepard
Remnants by General Rage reviews
From Halo's ashes, a mismatched Alliance is born. UNSC soldiers now serve alongside both Batarian deserters and shifty Jackal Space Pirates. Now Shepard and Master Chief have to keep these strange bedfellows from killing one another before they can stop an emergent new threat to the galaxy. The Next Swashbuckling Chapter of the Wormhole Chronicles.
Crossover - Halo & Mass Effect - Rated: M - English - Adventure/Sci-Fi - Chapters: 47 - Words: 975,839 - Reviews: 893 - Favs: 576 - Follows: 651 - Updated: 8/30 - Published: 4/22/2016 - Master Chief/John-117, Cortana, Tali'Zorah, Shepard
The Long, Long Walk by This Is Sarcasm reviews
Having stopped the Hive incursion on Eden Prime at the expense of being stuck in Commander Shepard's reality, Crow is offered a place on the Normandy. With nowhere to go, he accepts, and finds himself at the front of the fight against the Collectors, while at the same time trying to learn how to trust the ship's residents. In the end, though... maybe he's not 'stuck' after all.
Crossover - Mass Effect & Destiny - Rated: T - English - Sci-Fi/Angst - Chapters: 36 - Words: 131,834 - Reviews: 283 - Favs: 420 - Follows: 584 - Updated: 8/30 - Published: 9/15/2021 - Joker, Shepard, Dr. Chakwas, Crow
Book One: Harvest by Believer218 reviews
The year is 2583. Humanity stands strong, even twenty-six years after a disastrous first contact. But it seems that wherever they go, war will follow. And this war will grip the galaxy like no other. The first adventure of Mass Effect: The Reclaimer Saga. Rated M for graphic depictions of violence.
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 7 - Words: 35,522 - Reviews: 96 - Favs: 96 - Follows: 148 - Updated: 8/30 - Published: 4/4 - [Master Chief/John-117, Ashley W.] Arbiter, Saren A.
Eezo and Chrome by detonik reviews
On the brink of self destruction, humanity finds an escape forward. With the opening of Mass Relays from Earth, the galaxy faces a new era. The future unfolds as its cyber-enhanced sense of madness is introduced to the Citadel Space. This new chapter in the galaxy's history is written by the seductive power of corporations, ruthless mercenaries and unseen hands of fixers.
Crossover - Mass Effect & Cyberpunk 2077 - Rated: M - English - Chapters: 1 - Words: 3,568 - Reviews: 5 - Favs: 26 - Follows: 48 - Published: 8/29
Star Mahou effect by phantompain12 reviews
Tanya finally winds up in mass effect after having dealt with Being X. Starkiller's son too ends up in mass effect after his own sacrifice to stop the empire. This is something like that. I have no idea what I am going to write. Author note: Guys, I don't know what the hell I am doing. I just decided to write and this is the result. Any help would be appreciated as Eng is 2nd lang.
Crossover - Star Wars & Mass Effect - Rated: T - English - Humor/Adventure - Chapters: 21 - Words: 46,246 - Reviews: 43 - Favs: 77 - Follows: 96 - Updated: 8/29 - Published: 1/30
Mass Effect: Become Legend by Redgrave21 reviews
More than five years after the Reaper War, Jane Shepard had lost her life for her galaxy, while Garrus Vakarian struggles to move on from the loss of the love of his life. But when Garrus begins to suffer strange dreams, the Normandy crew are thrust into a conflict that has lasted since the beginning of time. All the while a strange voice begins to tempt Garrus with… Salvation.
Crossover - Destiny & Mass Effect - Rated: M - English - Adventure/Romance - Chapters: 10 - Words: 53,784 - Reviews: 31 - Favs: 26 - Follows: 42 - Updated: 8/28 - Published: 7/7 - Garrus V., Shepard, Osiris, Cayde-6
Way Down Inside of Me by Ragingceliac reviews
Tali never expected to be swept up into saving the galaxy; she never expected to meet someone like Commander Shepard, Hero of the Citadel; she never expected to be working for Cerberus. But the thing that would end up surprising her the most? The weirdo on the Normandy who carried around radioactive slag in his pocket.
Crossover - Fallout & Mass Effect - Rated: M - English - Angst/Romance - Chapters: 3 - Words: 6,470 - Reviews: 3 - Favs: 14 - Follows: 25 - Published: 8/27 - [Lone Wanderer, Tali'Zorah]
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: 14 - Words: 41,670 - Reviews: 17 - Favs: 75 - Follows: 91 - Updated: 8/25 - Published: 1/3/2023 - Liara T'Soni, Miranda L., 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: 21 - Words: 103,521 - Reviews: 155 - Favs: 387 - Follows: 432 - Updated: 8/25 - Published: 4/20/2020 - Chaos Space Marines, Tau, Legion, Shepard
Stellar Effect by Brandon Storm reviews
The Reapers trap was perfect in its design. Their execution refined over billions of years, their technology refined since the dawn of time itself. Right up until Someone Broke the Trap!
Crossover - Mass Effect & Stellaris - Rated: T - English - Adventure/Sci-Fi - Chapters: 100 - Words: 435,882 - Reviews: 411 - Favs: 479 - Follows: 597 - Updated: 8/25 - Published: 8/7/2022 - Complete
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. NOW ON TV TROPES!
Crossover - Sonic the Hedgehog & Mass Effect - Rated: T - English - Sci-Fi/Fantasy - Chapters: 12 - Words: 131,396 - Reviews: 72 - Favs: 92 - Follows: 114 - Updated: 8/25 - Published: 11/26/2023 - Sonic, Tails, OC
Divided Stars by Lighting wolf knight reviews
With the Emperor's plot revealed, a new war to stop the rising empire begins... In another galaxy. Rated T for violence, death, and profanity.
Crossover - Star Wars & Mass Effect - Rated: T - English - Adventure/Sci-Fi - Chapters: 2 - Words: 2,835 - Reviews: 1 - Favs: 5 - Follows: 12 - Updated: 8/24 - Published: 4/16/2023 - Obi-Wan K., OC, Tali'Zorah
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: 37 - Favs: 51 - Follows: 75 - 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: 37 - 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: 51 - Favs: 194 - Follows: 270 - 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: 376 - Follows: 448 - 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: 72 - Follows: 76 - 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: 124 - Follows: 162 - 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: 392 - Follows: 496 - Updated: 8/19 - Published: 1/14/2023
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