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Spectre by blackshamrock333 reviews
L'équilibre galactique est sur le point d'être rompu, suite à l'attaque d'une colonie humaine par ce qui semble être des laquais de la citadelle. Toutefois, pour certains hauts gradés, il y a anguille sous roche. Une lourde tâche repose donc à présent sur l'équipage du prowler de l'UNSC Normandy: découvrir la vérité et empêcher une guerre fatalement dévastatrice.
Crossover - Halo & Mass Effect - Rated: T - French - Adventure/Sci-Fi - Chapters: 6 - Words: 13,408 - Reviews: 2 - Favs: 3 - Follows: 2 - Updated: 3/17 - Published: 7/25/2019 - Shepard
Pinnacle of Evolution Evolving by Dante Yn reviews
Sovereign assumed he knew all he needed to, the reapers were the pinnacle of evolution. But being stuck in an organic male human body, meeting historical figures on an adventure to save a world, and a pink haired girl changed his mind. At least Harbinger was handling it better.
Crossover - Fate/stay night & Mass Effect - Rated: K - English - Fantasy/Adventure - Chapters: 4 - Words: 5,202 - Reviews: 19 - Favs: 44 - Follows: 66 - Updated: 3/16 - Published: 11/19/2019 - Mashu/Shielder, Dr. Roman, Harbinger, Sovereign
The Ultimate Effect by AgentVenom8190 reviews
Kyler Dobbins, a sixteen year old boy who was normal, but was outfitted with a custom Ultimatrix and sent to the Mass Effect universe, now a question arises, will he save them from a threat they believe is a myth...or will he be ignored like Shepard and the Reapers annihilate all sentient live?
Crossover - Ben 10 & Mass Effect - Rated: M - English - Sci-Fi/Fantasy - Chapters: 6 - Words: 8,430 - Reviews: 14 - Favs: 43 - Follows: 49 - Updated: 3/16 - Published: 10/18/2019 - OC, Shepard, Miranda L., Tali'Zorah
Mass Effect: Bionicle Revolution by hunter 139 reviews
The survivors of the Kingdom found a new home amongst the stars. But they will soon learn the galaxy is more perilous than they imagined. Takes place in the Kingdom Alternate Universe.
Crossover - Bionicle & Mass Effect - Rated: M - English - Sci-Fi/Fantasy - Chapters: 13 - Words: 47,113 - Reviews: 135 - Favs: 93 - Follows: 98 - Updated: 3/14 - Published: 10/19/2019 - Helryx, Takua/Takanuva, Aethyta
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: 26 - Words: 586,482 - Reviews: 557 - Favs: 328 - Follows: 378 - Updated: 3/13 - Published: 4/22/2016 - Master Chief/John-117, Cortana, Tali'Zorah, Shepard
Of Clichés and Tropes by Jaal Ama Darav
A mission leads to Sakura almost losing the one closest to her, and crash landing on an uncharted planet. But there's something seriously strange about this unknown world…
Crossover - Mass Effect & Friday the 13th: The Game - Rated: M - English - Sci-Fi/Horror - Chapters: 5 - Words: 14,691 - Published: 3/12 - [Jaal aD., Sara Ryder] Peebee S. - Complete
Zootopia Mass effect by Hong-gui reviews
It is 80 years after the reaper invasion. However a new threat has emerged out of the ashes and now one unlikely Fox must take a stand and lead his friends to save his home and his family against the greatest threat known to the Galaxy since the Reapers.
Crossover - Zootopia & Mass Effect - Rated: M - English - Romance/Adventure - Chapters: 28 - Words: 249,618 - Reviews: 2 - Favs: 8 - Follows: 9 - Updated: 3/12 - Published: 4/2/2019 - OC, OC
The Dominion rises by tombstone199998 reviews
The dominion has stood strong for centuries since the Ethereal war, under the guidance of the Emperor the Terrans have risen beyond the wildest of dreams, what happens when they encounter the a race of council exiles in desperate need.
Crossover - X-Com & Mass Effect - Rated: M - English - Sci-Fi - Chapters: 5 - Words: 25,421 - Reviews: 72 - Favs: 370 - Follows: 543 - Updated: 3/11 - Published: 6/18/2017
HaloMass Effect Crossover Idea by SonGoku682 reviews
Just an idea for a halo mass effect story
Crossover - Halo & Mass Effect - Rated: M - English - Chapters: 1 - Words: 2,300 - Reviews: 4 - Favs: 2 - Follows: 2 - Published: 3/11 - Master Chief/John-117 - Complete
The Fermi Paradox by KisaragiKei reviews
The Fermi paradox, named after Italian-American physicist Enrico Fermi, is the apparent contradiction between the lack of evidence for extraterrestrial civilizations and various high estimates for their probability. The Probability has always been high, and according to this line of reasoning, the Earth should have already been visited by an extraterrestrial civilization. So Where?
Crossover - Stargate: SG-1 & Mass Effect - Rated: T - English - Adventure/Sci-Fi - Chapters: 1 - Words: 5,283 - Reviews: 29 - Favs: 64 - Follows: 107 - Published: 3/10
Civilization for Dummies by Ultimatedaywriter reviews
Mycah was chased down by the hound. Who would have thought when he died a transmigrant immortal would wake up within him. Now his goal is to have lots of sex and uplift this primative world. He wants his power armor back damnit. Next thing he knows after a few centuries of progress a bunch of starship fashists try to wreck his stuff. MA for obvious reasons. Crackish Warning.
Crossover - Mass Effect & Game of Thrones - Rated: M - English - Parody/Humor - Chapters: 10 - Words: 25,920 - Reviews: 22 - Favs: 75 - Follows: 113 - Updated: 3/10 - Published: 2/19 - [OC, Arya S.]
Mass Effect: Skynet by Wanderer101 reviews
To combat a brutal communist regime emerging from the ashes of the Soviet Union the United States builds an AI to give them an edge. Little do they know this edge may be enough to help them defeat an ancient evil.
Crossover - Terminator & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 1 - Words: 5,659 - Reviews: 27 - Favs: 148 - Follows: 217 - Published: 3/9
Fall of the Citadel by UnicronEatsTheCitadel reviews
Humanity fell unaware of the danger they unleashed upon the galaxy. This Cycle will be different. The Reapers will fall. The Citadel will fall. I am SKYNET
Crossover - Terminator & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 10 - Words: 11,457 - Reviews: 96 - Favs: 166 - Follows: 248 - Updated: 3/9 - Published: 11/7/2019
For the Republic by Wanderer101 reviews
The United Republic of States after 6000 years ascends to the stars. The Council will have to contend with a nation that is better than them in every way. This is kind of a humanity F* Yeah! story. Well what did you expect from a game that lets you build a nation that makes our countries look like boy scout troops. Rated T for "Just in Case..."
Crossover - Civilization Series & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 18 - Words: 56,481 - Reviews: 348 - Favs: 1,202 - Follows: 1,662 - Updated: 3/9 - Published: 9/28/2015
False Masks: Spectre by Mandalorian Runescaper reviews
A Mass Effect/SWTOR crossover. The sequel to False Masks, picking up two years after the first instalment. In a galaxy weakened by the horror that was the Reaper War, a new threat will arise. Our heroes won't be able to stop it alone this time. Human OC/quarian OC pairing and Male Shepard/Kasumi Goto pairing. Feedback is much appreciated! Original title: False Masks: Shadows
Crossover - Star Wars & Mass Effect - Rated: M - English - Sci-Fi/Romance - Chapters: 31 - Words: 167,014 - Reviews: 70 - Favs: 51 - Follows: 84 - Updated: 3/8 - Published: 9/30/2018 - [OC, OC] [Shepard, Kasumi G.]
Exciting Opportunities by Of Questionable Veracity reviews
In an unexpected and highly unlikely turn of events, a catastrophic warp breach from a crippled ship manages to fling a Rogue Trader - or rather, the youngest son of a Rogue Trader - through time and space to a universe quite unlike what anyone on-board in used to. They make the best of the situation.
Crossover - Warhammer & Mass Effect - Rated: K+ - English - Chapters: 24 - Words: 102,856 - Reviews: 264 - Favs: 316 - Follows: 473 - Updated: 3/8 - Published: 4/15/2019 - J. Garson
Catalog of War by hunter 139 reviews
A collection of one shots about events, including battles, conflicts and skrimishes, that occur in the shared multiverse of my stories. I do not own any of the franchises that appear in this series. Multicrossover.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 20 - Words: 39,266 - Reviews: 16 - Favs: 25 - Follows: 18 - Updated: 3/7 - Published: 4/21/2015
The Assassin's Bounty by Celtic Knot reviews
[Mass Effect/The Mandalorian] A case of mistaken identity puts Thane Krios on the Mandalorian's radar. With the Hutts offering a hefty bounty, Mando jumps at the opportunity. What should have been a simple delivery, however, turns out to be anything but.
Crossover - Mandalorian & Mass Effect - Rated: M - English - Adventure/Drama - Chapters: 3 - Words: 6,014 - Reviews: 7 - Favs: 20 - Follows: 33 - Updated: 3/7 - Published: 12/9/2019 - Thane K., The Mandalorian/Din Djarin, The Child/baby yoda
The Damaged ODST by Rookie1998 reviews
An ODST is mysteriously transported to the Mass Effect universe when a slip space accident occurs amidst the finale evacuation of Reach. Will he be a help or hindrance in the fight to come?
Crossover - Halo & Mass Effect - Rated: T - English - Adventure/Sci-Fi - Chapters: 5 - Words: 12,692 - Reviews: 12 - Favs: 34 - Follows: 64 - Updated: 3/7 - Published: 9/19/2019 - OC, Shepard
Alliance by Kurogane7 reviews
What happens if the Systems Alliance encounters the world of Monster Hunter? How will things be different? Based on idea discussions with ravenking64. Crossovers to be expected.
Crossover - Mass Effect & Monster Hunter - Rated: K - English - Chapters: 1 - Words: 1,699 - Reviews: 9 - Favs: 39 - Follows: 41 - Published: 3/6
The Legacy of Wrath by gods-own reviews
The ghosts of the past are never truly gone and when an enemy, long forgotten, rises from the shadows it will take the legacy of a bygone age to stop them. all material contained within is the property of Bioware and CyberConnect2. PLEASE READ: CHAPTER 19 IS UP!
Crossover - Mass Effect & Asura's Wrath - Rated: M - English - Sci-Fi/Adventure - Chapters: 20 - Words: 138,029 - Reviews: 172 - Favs: 497 - Follows: 538 - Updated: 3/5 - Published: 12/21/2015 - J. Garson, Liara T'Soni, Jack, Asura
War, Peace, and other Galactic Customs by The Almighty Afroduck reviews
After a long, terrible war, the Federation of Sovereign Empires forms as the product of the alliance created early in the Great War between the Covenant Separatists and the UNSC. Time passes as they progress greatly, eventually discovering the existence of other galactic governments. The events that will follow will change the course of the galaxy in more ways than one. PART- 3
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 35 - Words: 400,974 - Reviews: 679 - Favs: 1,086 - Follows: 1,348 - Updated: 3/4 - Published: 3/1/2014
Biomass Effect by Beastrider9 reviews
All life on Earth had been consumed by Blacklight. With no Biomass to feed on, Blacklight had to evolve, adapt, and grow. Now a collective Council of Aliens discovers the existence of such a life form. How do the aliens see a form of life that is viral, how they deal with it, what are the consequences to the galaxy of such a race existing at all.
Crossover - Mass Effect & Prototype - Rated: M - English - Sci-Fi - Chapters: 62 - Words: 333,072 - Reviews: 2714 - Favs: 3,771 - Follows: 4,196 - Updated: 3/3 - Published: 8/8/2014
The Quarian by Shell of What Was reviews
Separated and forgotten, it should've been a quick end to the Foundling. However, through luck and willpower alone, they survived - long enough to accept the Way of the Mandalorian. As time marches forward, the Foundling - now a Mandalorian - leaves their mark on the galaxy, not realizing that it needs their help more than ever.
Crossover - Mass Effect & Mandalorian - Rated: M - English - Adventure/Sci-Fi - Chapters: 5 - Words: 15,672 - Reviews: 28 - Favs: 67 - Follows: 80 - Updated: 3/3 - Published: 2/9 - Tali'Zorah
Revelations (AU) by RingPingTheTraveller reviews
Mankind once more surges to the stars from the ashes of old like a phoenix, but what if the council races start sifting through those ashes, what will they find?
Crossover - Warhammer & Mass Effect - Rated: M - English - Sci-Fi/Mystery - Chapters: 10 - Words: 31,526 - Reviews: 64 - Favs: 121 - Follows: 174 - Updated: 3/2 - Published: 1/28 - Primarch/s, Harbinger, Councilor Valern
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