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Quintessence Effect by EvaShinobiKaiserKnight reviews
From Cycles of long ago from uncharted regions of the universe comes a legend, the legend of Voltron the Legendary Defender of the Universe. A mighty robot loved by good feared by evil. As the cycles repeat the return of a great threat awoken a slumbering princess of a lost people would gather five new Paladins so they may bring back Voltron the Legendary Defender of the Universe.
Crossover - Mass Effect & Voltron: Legendary Defender - Rated: T - English - Sci-Fi/Fantasy - Chapters: 12 - Words: 118,610 - Reviews: 27 - Favs: 39 - Follows: 37 - Updated: 11h - Published: 7/14 - [Princess Allura, OC] [Shepard, Ashley W.]
Eezo-Flux Theory by BrozTheBro reviews
Humanity found out that it was not alone in the galaxy. It had earned its place in the galactic community, and made it its goal to strive for unity and prosperity. But the barrier between galaxies is fickle, and another galaxy's mankind may yet make a significant difference in the galaxy's period of peace. The Council will stare down the wonders and horrors of the Collapse.
Crossover - Mass Effect & Starsector - Rated: M - English - Sci-Fi/Adventure - Chapters: 13 - Words: 63,377 - Reviews: 51 - Favs: 115 - Follows: 154 - Updated: 14h - Published: 3/11 - Garrus V., Liara T'Soni, Admiral Hackett, C. Pressley
The Reclamation by Fade Maybe reviews
Through ONI's manipulation, the UNSC stumbles upon a Mass Relay and is dragged into a new war. They'll discover the battered races of the Citadel, the political intrigue of its factions, and a second group of humans governed by the Systems Alliance, divided by Cerberus, and lead by Commander Shepard. Yet no one can stop what is to come: the Reclamation, and the death of the galaxy.
Crossover - Halo & Mass Effect - Rated: T - English - Drama/Suspense - Chapters: 54 - Words: 407,208 - Reviews: 1689 - Favs: 1,877 - Follows: 2,307 - Updated: 7/25 - Published: 3/13/2013
Canadian Blue: Off the Leash by brooklynrhyno reviews
With one final test in her way to N7, Commander Jane Shepard learns a valuable lesson from the Final Instructor at the ICT. As well she should. After all, he is "the best there is at what he does".
Crossover - X-Men & Mass Effect - Rated: K - English - Drama/Sci-Fi - Chapters: 1 - Words: 5,487 - Reviews: 1 - Favs: 7 - Follows: 5 - Published: 7/25 - James H./Wolverine/Logan, Shepard - Complete
Mass Effect: A lone hunter by GojiraGodzillafan1 reviews
Mass Effect x Destiny 2 A single guardian will be transported to the mass effect universe, for he is needed to help out a certain future Spector and his crew deal with there problems. But not just that universe's problems, a couple problems from the Guardians universe as well. Disclaimer, I own nothing in this story except my guardian
Crossover - Destiny & Mass Effect - Rated: M - English - Adventure/Romance - Chapters: 2 - Words: 7,101 - Reviews: 4 - Favs: 11 - Follows: 10 - Published: 7/24 - OC, Tali'Zorah, U. Wrex, Ghost
Mass Effect: Become Legend by Redgrave21 reviews
More than five years after the Reaper and Red Wars, 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 while a strange voice tempts Garrus with… Salvation.
Crossover - Destiny & Mass Effect - Rated: M - English - Adventure/Romance - Chapters: 7 - Words: 34,763 - Reviews: 15 - Favs: 12 - Follows: 29 - Updated: 7/24 - Published: 7/7 - Garrus V., Shepard, Osiris, Cayde-6
Mass Effect Knight of the Old Republic by greudu
Mass Effect Knight of the Old Republic by Azura on SB (post to read on phone)
Crossover - Star Wars & Mass Effect - Rated: M - English - Chapters: 10 - Words: 42,229 - Favs: 2 - Follows: 3 - Published: 7/24
Mortal Desperations by Solthrin reviews
Arcturus Magnus, Sagittarum of the Legio Custodes, has fought for years within the webway and the Impossible City. Upon taking a near-fatal wound, the Emperor Himself removes Arcturus from the front, sending him instead to bring forth reinforcements from the Mechanicum. When something goes wrong during the return, where does this Custodian find himself?
Crossover - Warhammer & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 11 - Words: 81,645 - Reviews: 127 - Favs: 631 - Follows: 887 - Updated: 7/23 - Published: 1/17/2023 - Adeptus Mechanicus, Tali'Zorah, Shepard
Canadian Blue: One Name by brooklynrhyno reviews
Logan is in the Mass Effect universe. How does the Queen of Omega deal with The Best There Is At What He Does?
Crossover - X-Men & Mass Effect - Rated: K - English - Humor/Adventure - Chapters: 1 - Words: 4,820 - Reviews: 1 - Favs: 6 - Follows: 6 - Published: 7/23 - James H./Wolverine/Logan, Kaidan A., Aria T'Loak - Complete
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: 3 - Words: 12,503 - Reviews: 9 - Favs: 24 - Follows: 34 - Updated: 7/22 - Published: 6/12 - OC
Saiyan Effect by bored peasant reviews
The Citadel Council weren't ready for a species with the power of the saiyans at their back.
Crossover - Mass Effect & Dragon Ball Super - Rated: T - English - Sci-Fi/Adventure - Chapters: 22 - Words: 132,480 - Reviews: 937 - Favs: 2,227 - Follows: 2,679 - Updated: 7/22 - Published: 8/9/2017 - Son Gohan, Son Goku, Vegeta
Outlaws of the Verse by Coltkit Prods. Omniva Verse reviews
In the World of "The Last Spartan" by "DinoJake" (Sequel/Spinoff/AU/Multi-Xover). 1000 years since the Reapers' defeat. People stopped aging (Supposedly caused by the wave that reprogrammed the Reapers). Kept sustainable by Replicators, Dyson Spheres, & Magic. Meanwhile: 3 Powers battle for the soul of the Galaxies: The Space Forces, Pirates, & The Outlaws. My OCs must choose sides
Crossover - Mass Effect & Halo - Rated: T - English - Sci-Fi/Family - Chapters: 12 - Words: 86,952 - Reviews: 4 - Favs: 17 - Follows: 13 - Updated: 7/21 - Published: 10/21/2023 - OC, OC, Master Chief/John-117, Shepard
The Galaxy's last shinobi by Kfbanime87 reviews
As for summary. His planet and people were gone. Destroyed by the reapers. But he survived. Now thousands of years in the future, Naruto must navigate a galaxy unfamiliar to him along with his ragtag crew of friends. All while he makes a name for himself and makes plans to destroy the reapers when they return
Crossover - Naruto & Mass Effect - Rated: M - English - Adventure/Humor - Chapters: 6 - Words: 58,098 - Reviews: 365 - Favs: 795 - Follows: 857 - Updated: 7/21 - Published: 3/27/2023 - Naruto U., 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: 95 - Words: 414,776 - Reviews: 397 - Favs: 464 - Follows: 579 - Updated: 7/21 - Published: 8/7/2022
The Bureau of Multiverse Affairs by RedFrontWriter
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: 22 - Words: 98,025 - Favs: 7 - Follows: 11 - Updated: 7/21 - Published: 3/3 - 4th Doctor, Sarah Jane S., Garrus V., Tali'Zorah
The Reclaimer Wars:The Reaper Crisis by Johnnieboy11 reviews
Six months prior to the worst crisis the normal Milky Way would face, Commander Shepard hunts the Collectors abducting human colonists in the Terminus Systems when she comes upon a terrifying new sight:Three Intergalactic fleets arrayed against each-other and her sole Frigate. Three new factions, one seeking a home and two seeking answers, all linked by the Star Roads.
Crossover - Game X-overs & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 14 - Words: 69,690 - Reviews: 80 - Favs: 166 - Follows: 208 - Updated: 7/20 - Published: 4/26 - Liara T'Soni, Tali'Zorah, Miranda L., Shepard
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: 14 - Words: 348,045 - Reviews: 136 - Favs: 365 - Follows: 436 - Updated: 7/19 - Published: 6/6/2023 - Garrus V., Tali'Zorah, Shepard
Sith Effect Episode I: First Contact by Metagray reviews
The ruins of Mars belonged not to the protheans but to humanity's ancestors, the Sith Empire. How will the Citadel react to a race that not only doesn't use mass effect technology, but is an anathema to their ideals. When the turians find the Sith, they face a war unlike any this galaxy has seen. The First Contact War has begun. Peace is a lie, there is only passion.
Crossover - Star Wars & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 18 - Words: 140,060 - Reviews: 736 - Favs: 2,019 - Follows: 2,339 - Updated: 7/19 - Published: 12/3/2022 - D. Anderson, Admiral Hackett, Rael'Zorah, OC - Complete
The Prelude to War by Indigard reviews
A very different Mass Effect galaxy encounters a strange and relentless invader that is in constant hunger for Biomass but they never know it's just a glimpse of what is coming for them. Featuring: an alternative history for every species, a bigger and more populated galaxy, cunning Asari, and a militarized and Germanized human empire.
Crossover - Warhammer & Mass Effect - Rated: T - English - Chapters: 12 - Words: 203,313 - Reviews: 59 - Favs: 114 - Follows: 126 - Updated: 7/18 - Published: 11/6/2021 - Imperial Guard, Tyranids, OC, Shepard
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: 1 - Words: 4,121 - Reviews: 43 - Favs: 572 - Follows: 746 - Published: 7/18 - D. Anderson, Admiral Hackett, Shepard, Hannah S.
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: 26 - Words: 94,441 - Reviews: 177 - Favs: 590 - Follows: 873 - Updated: 7/18 - Published: 7/8/2022 - Rookie, Shepard
One Small Step by Bardothren reviews
Izuku opens a door inside a Turian ship and it all goes downhill from there.
Crossover - Mass Effect & My Hero Academia/僕のヒーローアカデミア - Rated: K - English - Sci-Fi/Drama - Chapters: 2 - Words: 5,273 - Reviews: 14 - Favs: 38 - Follows: 57 - Updated: 7/17 - Published: 6/11 - Izuku M., Nezu/The Principal
An intriguing result by ReligiousZealot reviews
The Turians, the military arm of the Council and the galaxy's peacekeepers, initially stood alone during their encounter with the Council. However, what if they hadn't been alone? What if their first contact wasn't solely with the Council? Imagine if they had an unexpected ally—a species unlike any other: the Zerg collective
Crossover - StarCraft & Mass Effect - Rated: T - English - Mystery/Suspense - Chapters: 7 - Words: 13,149 - Reviews: 23 - Favs: 66 - Follows: 98 - Updated: 7/17 - Published: 5/14
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: 3 - Words: 17,079 - Reviews: 5 - Favs: 22 - Follows: 28 - Updated: 7/16 - Published: 9/12/2023 - Miranda L., Jacob T., Shepard
Mario Effect by OroDeus reviews
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: 7 - Words: 8,563 - Reviews: 3 - Favs: 3 - Follows: 6 - Updated: 7/15 - Published: 12/27/2023 - Mario, Luigi, Daisy, Toad
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