Mass Effect Crossovers
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All the Stars by BlueWay reviews
When the Long Night of Solace is evaporated over Reach via the weaponized usage of a Slipspace Drive, it ferries with it in its swallowed sections the Covenant Empire and, more horrifyingly, the desperate measures that the UNSC used to fight them. When they are found in a universe on the precipice of their own history, the meaning of the term "Mass Effect" will change forever.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 42 - Words: 729,387 - Reviews: 1196 - Favs: 1,638 - Follows: 1,997 - Updated: 12/7 - Published: 6/8/2018 - SPARTAN-B312/Noble Six, Rookie
Héroe De Una Galaxia Distante by fitoxi reviews
'Retornador'; El Quirk que envio a Izuku a otro mundo, para luego regresarlo de vuelta, conservando todos los poderes que había ganado. Lamentablemente, nadie le creera si intenta revelar el origen de sus otros Quirks, 'Bioticos/Omniherramienta' y menos se creeran el cuento de que fue el más grande héroe de una galaxia. [Izuku OOC/Inicialmente, Vigilante/Harem ( Solo 2 parejas)]
Crossover - Mass Effect & My Hero Academia/僕のヒーローアカデミア - Rated: T - Spanish - Adventure/Romance - Chapters: 6 - Words: 43,710 - Reviews: 2 - Favs: 12 - Follows: 14 - Updated: 12/7 - Published: 3/3 - [Liara T'Soni, Himiko Toga, Tali'Zorah, Izuku M.]
A certain Level 5 in Shanxi by reinDank reviews
He whimpered a bit when he hear the insane laughing and the flapping of the wings.
Crossover - Mass Effect & Toaru Majutsu no Index/とある魔術の禁書目録 - Rated: M - English - Angst/Sci-Fi - Chapters: 1 - Words: 1,087 - Reviews: 2 - Favs: 11 - Follows: 18 - Updated: 12/5 - Published: 5/23 - OC, Accelerator - Complete
The Eternal Lord 40k - ME by HellFox83 reviews
A battle against the forces of Chaos strands a Necron lord in the galaxy of Mass Effect. With what's left of his dynasty under his banner, Veronakh Lord of Solvatakh intends to lead his people to glorious conquest. Can Commander Shepard stop the Collectors and curtail the ambitions of the Necrons?
Crossover - Warhammer & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 24 - Words: 271,582 - Reviews: 103 - Favs: 335 - Follows: 450 - Updated: 12/5 - Published: 6/13/2020 - Necrons, Shepard
Human Legacy by ShirouKuroEmiya reviews
Some fifty thousand years, there once was a galaxy-spanning civilisation belonging to a race called humanity. They earned many names such as Protector and Giver. Many later races would worship them as gods. Humanity fought a war with the life-destroying Reapers. Now, thousands of years later the younger races have stepped into the stars to find the ruins of humanity...
Crossover - Fate/stay night & Mass Effect - Rated: T - English - Chapters: 1 - Words: 1,258 - Reviews: 12 - Favs: 55 - Follows: 77 - Published: 12/5 - Shepard
No Greater Calling by silencewillfall0091 reviews
Because here's the thing. Turians, despite their reputations, had never loved war- not the suffering, the dying, nor the pain. They loved victory- the prevailing of clear good over clear evil- justice winning in the end, the beating of overwhelming odds for peace. And there was never more a clear example of this type of war than ours against the Covenant.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 4 - Words: 6,957 - Reviews: 91 - Favs: 361 - Follows: 587 - Updated: 12/4 - Published: 1/7
Vengeance of the Suit Rat by SympathyForTheQuarians reviews
On an ordinary day in the Migrant Fleet in 2182, a quarian picks up the Death Note. Nothing good happens for anyone outside the Migrant Fleet. AU, made out of necessity to show you that ya'll are writing too many stories about Light Yagami and not being creative enough.
Crossover - Death Note & Mass Effect - Rated: T - English - Supernatural/Horror - Chapters: 12 - Words: 5,831 - Reviews: 6 - Favs: 9 - Follows: 9 - Updated: 12/4 - Published: 9/14 - Aria T'Loak - Complete
To Sail Among the Stars by How-not-to-do-something reviews
The Universal Century promised a new Era, and brought conflict. But the stars shine on, awaiting those who seek a new start. Crossposted from Ao3.
Crossover - Gundam UC & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 7 - Words: 38,131 - Reviews: 13 - Favs: 41 - Follows: 58 - Updated: 12/4 - Published: 11/1
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: 38 - Words: 128,306 - Reviews: 47 - Favs: 244 - Follows: 248 - Updated: 12/4 - Published: 8/2/2019
Galactic Upheaval by palik reviews
Our closest planet was always a mistery to us. So close yet so enigmatic, for a reason. The Exploration of mars has brought many changes in Human sociaty, none more then the discovery of an Alien Beacon filled to the brim with technology and designs never thought possible. A scared Humanity ventures into the stars to carve out is own place in the galaxy. (Slight HFY, maybe not)
Crossover - Star Wars & Mass Effect - Rated: M - English - Sci-Fi - Chapters: 14 - Words: 24,468 - Reviews: 151 - Favs: 475 - Follows: 613 - Updated: 12/3 - Published: 7/2/2021
I'm Nobody by free man writer reviews
He didn't have anything when he was born. Just a name and number. But over time, what he had grew. He, with his friends began to understand that there was more to their existence then just their name and number. They will prove that they were meant to be real. To exist. To become something more than just a Nobody. Co-written and created with Jebest4781. Fem Shepard. Now on Ao3.
Crossover - Kingdom Hearts & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 42 - Words: 738,709 - Reviews: 622 - Favs: 530 - Follows: 564 - Updated: 12/3 - Published: 9/13/2020 - Axel, Roxas, Xion, Shepard
Anthem Effect by DragonKnight374 reviews
What if more than the world of Coda was isolated in space time? What will the freelancers do when they realize there’s more to the universe than their little planet, and how will the citadel react, to the Anthem of Creation?
Crossover - Mass Effect & Anthem - Rated: M - English - Sci-Fi/Adventure - Chapters: 14 - Words: 70,075 - Reviews: 58 - Favs: 205 - Follows: 254 - Updated: 12/1 - Published: 8/8
RWBY Effect 2: Rebirth by Owriush reviews
A year and a half has gone by, since the attack on the Citadel. Team RWBY and the crew of the Normandy suffer a tragedy. Ending in the loss of many lives. Awakened now a few years later. The girls of team RWBY, Elizabeth Shepard and their new allies must fight against a threat. One even more dangerous then the last. This is their Rebirth into a new world of wonders and insanity.
Crossover - Mass Effect & RWBY - Rated: T - English - Adventure/Romance - Chapters: 2 - Words: 47,256 - Reviews: 5 - Favs: 23 - Follows: 26 - Updated: 11/30 - Published: 8/10
Mass Age by Balidoria reviews
Of all the planets Commander Shepard could have crash landed on, ending up in the mysterious land of Thedas during a blight was definitely on the bottom of her list.
Crossover - Mass Effect & Dragon Age - Rated: M - English - Romance/Friendship - Chapters: 23 - Words: 50,092 - Reviews: 27 - Favs: 100 - Follows: 122 - Updated: 11/29 - Published: 3/12/2015 - Shepard, Alistair, Cousland
Don't Fuck With Aria by SympathyForTheQuarians
On an ordinary day on Omega in 2184, Aria T'Loak picks up the Death Note. She uses it to become queen of the fucking Terminus, because of course she does. AU.
Crossover - Death Note & Mass Effect - Rated: T - English - Chapters: 1 - Words: 1,752 - Favs: 2 - Follows: 1 - Published: 11/29 - Aria T'Loak - Complete
Mass Effect: Forward Unto Dawn by WildcatWarrior67 reviews
Spartans never die. They're just missing in action. At least, that's how the saying goes. But for the Master Chief and Cortana, they're no longer missing. Awaking in a different universe, the two of them will uphold their oath: to protect Earth and all her colonies. Only it won't be from the Covenant this time. And just who is this Commander Shepard they'll be working with?
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 3 - Words: 3,522 - Reviews: 18 - Favs: 68 - Follows: 126 - Updated: 11/28 - Published: 11/26 - Master Chief/John-117, Shepard
Galactic Hero's Effect by fitoxi reviews
'Returner':This Quirk sent Izuku to another world, only to return him to Quirk world aferwards, retaining all the powers he had obtained.Unfortunately, no one will believe him if he tries to reveal the origin of his others Quirks,'Biotics/Omnitool' and much less will they believe the tale that he was the greatest hero of an entire galaxy[Izuku OOC/Initially,Vigilant/only2 Romances]
Crossover - Mass Effect & My Hero Academia/僕のヒーローアカデミア - Rated: T - English - Adventure/Romance - Chapters: 4 - Words: 40,604 - Reviews: 30 - Favs: 198 - Follows: 251 - Updated: 11/27 - Published: 3/3 - [Liara T'Soni, Himiko Toga, Izuku M.] U. Grunt
CyberEffect: Age of Legends by DragonKnight374 reviews
What if the Militech Colony on Mars discovered something, something that could introduce humanity to the Galactic stage? While they might thrive, may the gods help the species they’ll live with. (Working on Summary)
Crossover - Mass Effect & Cyberpunk 2077 - Rated: M - English - Adventure/Sci-Fi - Chapters: 1 - Words: 7,492 - Reviews: 9 - Favs: 56 - Follows: 72 - Published: 11/27
Adventures of Captain Jason and Agronauts by johny woodpecker
While Shepard does his thing, captain Jason and his friends travel the galaxy from alternate perspective. Crossover with lots of stuff, but mostly TF2
Crossover - X-overs & Mass Effect - Rated: M - English - Adventure/Sci-Fi - Chapters: 6 - Words: 5,081 - Updated: 11/26 - Published: 10/14
Tame The Stars by Warlock99 reviews
Commander Shepard didn't think that there would actually be intelligent life in this strange Star System that lay in Dark Space. Yet here they were, shinobi who were more than ready to take on the entire galaxy if need be. They were ready to tame planets, and stars whether the Council liked it or not. Someone had to fix this mess after all. ME Canon Divergence.
Crossover - Naruto & Mass Effect - Rated: M - English - Adventure/Sci-Fi - Chapters: 7 - Words: 25,474 - Reviews: 100 - Favs: 437 - Follows: 629 - Updated: 11/24 - Published: 6/13 - Naruto U., Shepard
Technophiles and Militarists by thelordofdarkreunion reviews
The Reaper invasion is nigh. Outnumbered and outgunned, the Citadel must turn to two new, dangerous allies for salvation: the Adeptus Mechanicus and Imperium of Man.
Crossover - Warhammer & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 18 - Words: 199,285 - Reviews: 426 - Favs: 396 - Follows: 510 - Updated: 11/23 - Published: 4/22 - Imperial Guard, Space Marines, Adeptus Mechanicus, Shepard
Dysfunctional Drift by Ricky Rabankenz reviews
After an ambush almost cost them everything, the mercenary group Dysfunction attempts a jump to safe harbor, but a catastrophic failure sees them flung into an unknown galaxy. What will they do with no money and no contacts.
Crossover - Mass Effect & Star Citizen - Rated: M - English - Sci-Fi - Chapters: 9 - Words: 18,967 - Reviews: 14 - Favs: 44 - Follows: 69 - Updated: 11/22 - Published: 10/19
Collectors at Dawn v2 by jacksld850 reviews
A rewrite of the original Collectors at Dawn. Lost all of the work I had on it so I'll be redoing it from scratch.
Crossover - Halo & Mass Effect - Rated: M - English - Adventure/Sci-Fi - Chapters: 1 - Words: 11,710 - Reviews: 3 - Favs: 26 - Follows: 49 - Published: 11/21 - Master Chief/John-117, Cortana, Miranda L., Shepard
The Return of Hope by Masso 2010 reviews
Commander Shepard is dead. Knowing that they needed someone to complete his work fighting against the Reapers, The Illusive Man set his sights on the next best thing, Humanities greatest hero. The only problem is that Superman gave up on hero work a long time ago but can the threat of galactic extinction be enough for him to once again step into the light.
Crossover - Superman & Mass Effect - Rated: M - English - Sci-Fi - Chapters: 19 - Words: 161,028 - Reviews: 236 - Favs: 545 - Follows: 643 - Updated: 11/21 - Published: 7/10/2020 - Clark K./Kal-El/Superman, Miranda L.
The Boundary Effect – Time of Change by Touhoufanatic reviews
With the alliances declarations and pulling out of Council space in it's entirety, the galaxy is set to change in ways none can fathom or expect. yet even as these changes occur, the Reapers plot and prepare in the background, waiting and watching, and preparing to send their minions forth. change is coming, whether it is wanted, or not.
Crossover - Mass Effect & Touhou Project - Rated: M - English - Sci-Fi/Fantasy - Chapters: 3 - Words: 13,334 - Reviews: 15 - Favs: 204 - Follows: 267 - Updated: 11/19 - Published: 7/31
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