Mass Effect Crossovers
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Unknown events have unmeasurable answers by El callampas reviews
When someone contacts the Quarians about old machinery, they should think twice before engaging with a strange yet so familiar species, a war, and circumstances that will shock two galaxies now that the rift is open.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Drama - Chapters: 18 - Words: 161,181 - Reviews: 314 - Favs: 465 - Follows: 665 - Updated: 12/13 - Published: 4/21 - [Master Chief/John-117, Tali'Zorah] J. Cutter
The third way by Konradoziom reviews
Mankind has finally united after a long time. To do this, it was necessary to discover the ruins of an ancient civilization and a wrecked spaceship. But the ship and the ruins have a completely different technology. Is it a gift from heaven that allows for enormous development in many directions, or is it a danger of their existence? Humanity will have to find out about it.
Crossover - Starblazers & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 25 - Words: 72,316 - Reviews: 124 - Favs: 176 - Follows: 214 - Updated: 12/13 - Published: 2/20/2021 - Alex W./M. Kodai, A. Avatar/J. Okita, Nihlus K.
Never Fade Away by Ideas-Guy reviews
Lives are cheap and money is everything. That's how the orphanage made its money - lending out children for human expirementation. L is an old man at the age of fifteen and he knows he doesn't have much time left. All that mattered was getting out, but he soon learns that the world is a lot bigger than Night City. And that the galaxy is a lot bigger than Earth.
Crossover - Mass Effect & Cyberpunk 2077 - Rated: M - English - Adventure/Drama - Chapters: 7 - Words: 36,413 - Reviews: 52 - Favs: 296 - Follows: 334 - Updated: 12/12 - Published: 10/31 - Shepard, V
The Prelude of War by Indigard reviews
A very different Mass Effect galaxy encounters a strange and relentless invader that is on constant hunger for Biomass but they never know it's just a glimpse of what coming for them. Featuring: alternative history for every species, a bigger and more populated galaxy, cunning Asari, militarized and germanized human empire.
Crossover - Warhammer & Mass Effect - Rated: T - English - Chapters: 6 - Words: 115,759 - Reviews: 22 - Favs: 62 - Follows: 64 - Updated: 12/11 - Published: 11/6/2021 - Imperial Guard, Tyranids, OC, Shepard
Clone Effect: Rebels by Twistedstitcher27 reviews
The Republic has fallen and given rise to The Empire. With everything they fought for destroyed, there's little left to hope for. But as soldiers who have pledged their lives to protecting the innocent, evil will not stand unopposed.
Crossover - Star Wars: The Clone Wars & Mass Effect - Rated: M - English - Adventure/Romance - Chapters: 6 - Words: 23,559 - Reviews: 9 - Favs: 25 - Follows: 31 - Updated: 12/11 - Published: 7/31 - [Captain Rex, Shepard] James V., Jack
Depths of Space by Lighting wolf knight
A Jedi Relic takes The fledging New Republic and a student of Luke's to new depths of space. One with new friends and enemies. Rated T for violence, death, and profanity.
Crossover - Star Wars & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 1 - Words: 815 - Favs: 2 - Follows: 4 - Published: 12/11 - OC, Grand Moff A. Kaine, Liara T'Soni, Peebee S.
System Alliance: Caamas Document Crisis by Konradoziom reviews
The New Republic is on the brink of civil war. At the same time, there are rumors of the return of Grand Admiral Thrawn. In these troubled times, the System Alliance decides to show the rest of the Galaxy in style. At the same time, in the Nirauan System, a special branch of the SA carries out a secret operation.(Sequel to System Alliance: Unknown Regions)
Crossover - Star Wars & Mass Effect - Rated: K+ - English - Mystery/Sci-Fi - Chapters: 5 - Words: 12,355 - Reviews: 5 - Favs: 18 - Follows: 20 - Updated: 12/9 - Published: 9/18 - Luke S., Han S., Admiral Hackett, Shepard
My Third Life: Mass Effect Gamer Edition by MasterHunter123 reviews
After taking a small break,Zach, has returned to his life as a gamer, this time around his system has been updated into a Grand Strategy edition, with his new empire at his back, how far will the Gamer go to ensure that the Reapers lose in the end? What will the Galaxy look like after he is done? (Heavily Au, Gamer, Dark Elements, Borderline Evil Mc, Harem, Fast Paced )
Crossover - Anime X-overs & Mass Effect - Rated: M - English - Chapters: 2 - Words: 3,292 - Reviews: 28 - Favs: 105 - Follows: 120 - Updated: 12/9 - Published: 9/19 - Liara T'Soni, Miranda L., Shepard, OC
The Mass of an Aura's Effect by vmoneywashere reviews
Team CFVY, one of the best second-year teams in Beacon, is fleeing from the Grimm when they unexpectedly find an alien artifact that transports them off Remnant. Meanwhile, Warlock Team, led by the son of John and Tali Shepard, is stuck guarding a dig site when 4 teens are dropped in their lap. One thing is for sure, all of them are in for a ride. (Rewrite of Aura Effect)
Crossover - Mass Effect & RWBY - Rated: T - English - Adventure/Sci-Fi - Chapters: 3 - Words: 9,530 - Reviews: 12 - Favs: 18 - Follows: 32 - Updated: 12/8 - Published: 11/11 - [Tali'Zorah, Shepard] OC, Team CFVY
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: 1197 - Favs: 1,641 - Follows: 1,998 - 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: 59 - Follows: 83 - 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: 92 - Favs: 365 - Follows: 596 - 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: 476 - Follows: 616 - 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: 532 - Follows: 565 - 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: 255 - 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: 3 - Follows: 2 - 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: 72 - Follows: 133 - Updated: 11/28 - Published: 11/26 - Master Chief/John-117, Shepard
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