Mass Effect Crossovers
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Halo: Clash of Galaxies by Jochern reviews
Through unknown forces of immense and unimaginable power, two galaxies merge and superpowers of both galaxies is forced to deal with the reality of the broken status quo. Jane Shepard, first human Spectre, finds herself in the center of the events to come, for in the dark void outside the galaxy, the Reapers prepare their return to cleanse this new galaxy of life.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 14 - Words: 45,162 - Reviews: 59 - Favs: 165 - Follows: 269 - Updated: 3/27 - Published: 9/5/2019 - T. Hood, J. Garson, Garrus V.
Maelstrom Effect Book 2: Shadows of Crimson by godospartan the Kitsune reviews
After Soverign's defeat, the sibling Commanders left to clean up the mess it left behind. But one of them was struck down by an unknown force. The next 2 years they go in search of the ones responsible, unknowing that a secret group is bringing their sibling back to life to fight the Reapers again. How will they react when they meet again? NaruxTali, Shakarian, Mature content later
Crossover - Naruto & Mass Effect - Rated: M - English - Sci-Fi/Hurt/Comfort - Chapters: 2 - Words: 14,693 - Reviews: 10 - Favs: 77 - Follows: 73 - Updated: 3/27 - Published: 12/25/2019 - Naruto U., J. Garson, Garrus V., Tali'Zorah
A Future For The Galaxy by HandAssassinSpider-man reviews
Peter was one hundred percent positive that he wasn't supposed to be here. He was supposed to be home worrying about making ends meet by finding an actual job that pays well and trying to get out of this blind date that his Aunt May was trying to set him up with. Instead he's been dragged into a war for survival against a seemingly unstoppable horde of immortal god like machines.
Crossover - Spider-Man & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 3 - Words: 14,715 - Reviews: 85 - Favs: 155 - Follows: 190 - Updated: 3/26 - Published: 3/11 - Peter P./Spider-Man, Tali'Zorah, Miranda L., Shepard
The Anthem of The Stars by Knightwolf1875 reviews
A chance find in Fort Tarsis leads to some lost history and so much more. With the aid of even a lost Vault Hunter the galaxy is about to learn what Freelancers can do. Can Shepard learn to work with these wild cards, or will it be a rough road to stopping the Geth? There's only one way to find out... Kat don't hit Wrex with that! Chapter 2 fixed!
Crossover - Anthem & Mass Effect - Rated: T - English - Adventure - Chapters: 2 - Words: 9,276 - Reviews: 6 - Favs: 16 - Follows: 18 - Updated: 3/26 - Published: 3/9
The Stranger with the Big Iron on her hip by Helljumper206 reviews
Bane of the Legion, the hero of the New Vegas and the N.C.R. How will the Galaxy fair against a women that can walk away from getting shot in the head twice, and walk like it was a morning wake up call while also eats scrambled deathclaw eggs for breakfast? Guess Shepard will find out once he meets the mad bomber of the Mojave.
Crossover - Fallout & Mass Effect - Rated: M - English - Adventure - Chapters: 6 - Words: 28,217 - Reviews: 24 - Favs: 154 - Follows: 219 - Updated: 3/26 - Published: 8/3/2019 - Courier, ED-E, Garrus V., Shepard
Ship of The Line – Effect 31 by Knife Hand reviews
Bored with how things are going to play out, Janus interferes more directly in Halloween, making things more interesting and changing the course of the entire Galaxy. (Buffy/Star Trek/Mass Effect) - Chapter 10 up
Crossover - Buffy: The Vampire Slayer & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 10 - Words: 17,778 - Reviews: 96 - Favs: 294 - Follows: 391 - Updated: 3/26 - Published: 10/16/2019 - Xander H., Buffy S., Willow R.
The silver eyed agent by stefaniuss reviews
Even the smallest pebble can produce an avalanche, something that a out of his luck smuggler is about to find out. This is the story of Lena, silver eyed warrior of the latest generation forced to fight against an enemy far stronger than any yoma, but at the same time so familiar. Will she survive?
Crossover - Claymore & Mass Effect - Rated: M - English - Adventure/Sci-Fi - Chapters: 27 - Words: 193,444 - Reviews: 23 - Favs: 75 - Follows: 87 - Updated: 3/25 - Published: 1/4/2018 - [OC, Kelly C.] Mordin S., Shepard
Halo: Ascension - Status Update on Last Chapter by Hunter63 reviews
[ After the Great War, Humanity begins to rebuild, and while many challenges present itself to the surviving government, nothing will have as much as an impact as Shanxi. The Galaxy shall become the center point for an ancient threat's plans, people of all backgrounds must come together, and Humanity must finally ascend to its rightful throne as inheritors of the Mantle. ]
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 5 - Words: 14,217 - Reviews: 35 - Favs: 193 - Follows: 258 - Updated: 3/25 - Published: 5/31/2013 - Master Chief/John-117, Arbiter, J. Garson, Garrus V.
Honor and Glory: Just a Status Update on Chapter 3 by Hunter63 reviews
We have fought for years as warriors of the Systems Alliance, and now we look towards the stars again with hope. We are the Vanguard of of our Mantle, protectors of Humanity and our Alliance. The Citadel might believe they can control the galaxies fate, but they do not hold the Mantle, we do. I am the eye of the Council, an Ossoona. Out of Darkness, these blades will light my way.
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 3 - Words: 6,792 - Reviews: 18 - Favs: 58 - Follows: 71 - Updated: 3/25 - Published: 10/3/2012 - Arbiter, J. Garson
Red Effect by goofyfootboarder reviews
When the Normandy crash-lands on an unknown planet after the activation of Crucible, the Normandy's crew finds out they're not alone... Setting: Post Destroy-ending Mass Effect 3/Between Seasons 10 & 11
Crossover - Mass Effect & Red vs. Blue - Rated: T - English - Sci-Fi - Chapters: 8 - Words: 32,283 - Reviews: 44 - Favs: 83 - Follows: 123 - Updated: 3/24 - Published: 11/17/2014 - Garrus V., Joker, Epsilon, Wash
The Last Shinobi by XlikeX14 reviews
The numbers of shinobi drastically decreased over the past generations till near extinction, people stopped using chakra as their source of power and focused on developing a modern society with the help of technology until they've achieved space-flight and the Reapers harvested their civilization... expect one. Follow the ninja way of the last living shinobi Akane Uchiha.
Crossover - Naruto & Mass Effect - Rated: M - English - Tragedy/Mystery - Chapters: 20 - Words: 51,607 - Reviews: 25 - Favs: 69 - Follows: 90 - Updated: 3/24 - Published: 7/4/2019 - OC
Pokemon Effect by Lix231 reviews
After a Meteor nearly destroyed the Hoenn Region, Scientists of Earth began to be interested into Space. A Few Years later, Humanity is colonizing the different Worlds out there in Space. A invasion from a Race called Turians shows them there is more than just them out in Space. But can the Council Handle a Race with such a unique Culture as Humanity and the Pokemon?
Crossover - Pokémon & Mass Effect - Rated: M - English - Humor/Sci-Fi - Chapters: 1 - Words: 1,791 - Reviews: 13 - Favs: 32 - Follows: 58 - Published: 3/24
Siblings of Metal by Tyara Laedros reviews
Everyone know the story of Harry Potter and his friends. But how many of you know the story of the Siblings of Metal ? No history book ever mentionned them. They are the forgotten names. The unknown heroes... John Shepard was a Slytherin, joining Hogwarts the same year Potter did. And he has a story for you... HP x Mass Effect Crossover
Crossover - Harry Potter & Mass Effect - Rated: T - English - Angst - Chapters: 17 - Words: 54,057 - Reviews: 5 - Favs: 16 - Follows: 19 - Updated: 3/24 - Published: 8/8/2019 - Ashley W., Kaidan A., Miranda L., Shepard
The Yorha effect by Drarnegas reviews
5 years after the end of the 14 machine war, Yorha starts the long effort of rebuilding earth for mankind. When suddenly a new threats comes to their world. (Slight different ending of Nier automate and head-cannon. Slight OP Yorha.)
Crossover - Mass Effect & Nier - Rated: M - English - Sci-Fi - Chapters: 15 - Words: 30,367 - Reviews: 51 - Favs: 243 - Follows: 351 - Updated: 3/24 - Published: 5/13/2019
Mass effect: the Fenris by epic insanity666 reviews
Instead of One human chosen for the Spectres, another joins John Sheperd through his hunt and war against Saren and the Reapers, using his own methods of war, Loki Fenris, forced into a human form, takes the galactic community by storm with another Remnantian by his side "People, meet Penny" X-overs shown through weapons from my other favourite games.
Crossover - X-overs & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 9 - Words: 17,947 - Reviews: 5 - Favs: 27 - Follows: 32 - Updated: 3/24 - Published: 12/6/2019 - [Tali'Zorah, OC] Shepard
I am the Swarm by StarMaker674 reviews
A nerd finds himself incarnated into the Zerg overmind. Inspired by Swarm of War
Crossover - StarCraft & Mass Effect - Rated: T - English - Chapters: 22 - Words: 24,875 - Reviews: 65 - Favs: 401 - Follows: 534 - Updated: 3/23 - Published: 10/7/2017 - Overmind, OC
Mass Effect meets X Universe by Sordahon reviews
Crossover between Mass Effect trilogy and X Universe 4x space game. My game Corporation and rest of Commonwealth with Terrans will meet Citadel Races and maybe even Reapers. There will be no System Alliance nor Cerberus.
Crossover - X Universe & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 5 - Words: 11,950 - Reviews: 7 - Favs: 23 - Follows: 32 - Updated: 3/23 - Published: 3/20
Imperium Effect by BlackPhantom247 reviews
As the Great Crusade grinds on, the Emperor has finally found the last of his sons. But unfortunately someone has been pulling the strings and now Chaos Undivided is ready to make it's move. Warhammer AU. M for eventual bloodshed. Also contains elements of Attack on Titan. Part 1 of the Rebellion series. Reviews are welcome.
Crossover - Warhammer & Mass Effect - Rated: M - English - Adventure/Sci-Fi - Chapters: 10 - Words: 19,067 - Reviews: 94 - Favs: 159 - Follows: 207 - Updated: 3/23 - Published: 11/14/2016 - The Emperor, Primarch/s, Shepard
Rain Of Iron by Wirbelwind2017 reviews
Several months after a devastating war that left much of Earth destroyed, the Earth Defense Force faces new challenges when a pirate vessel breaks Citadel law and opens several Mass Relays. HFY?
Crossover - Mass Effect & Earth Defense Force - Rated: T - English - Sci-Fi - Chapters: 18 - Words: 13,837 - Reviews: 20 - Favs: 75 - Follows: 123 - Updated: 3/21 - Published: 9/6/2019 - U. Wrex, Aria T'Loak, Councilor Tevos, Councilor Sparatus
Heartaches, by the Number by DanishCookie reviews
The Courier's road led him eastwards, to the West before the East. Some might have considered him a broken man, leaving behind a future that left him wanting. Yet, a chance brush with death and crimson fury may provide him another road, another path – a path above, within the stars of another galaxy with its own future on the line, herded by its own shepherd and her flock.
Crossover - Fallout & Mass Effect - Rated: T - English - Adventure/Sci-Fi - Chapters: 1 - Words: 3,207 - Reviews: 7 - Favs: 25 - Follows: 44 - Published: 3/21 - Courier, Garrus V., Tali'Zorah, Shepard
MASS EFFECT Dosseir: Ahsoka Tano by lycan13 reviews
Ahsoka Tano left the order a few months ago, now she is one the run from Vader. As he tracks her to somewhere beyond the outer rim near a recently discovered hyperspace anomaly. She wakes up on the Citadel in the care of Garrus Vakarian. Two years later, Shepard is sent to Omega to find Mordin Solus, Archangel, and Angel. More commonly known as Ahsoka Tano.
Crossover - Star Wars & Mass Effect - Rated: M - English - Adventure - Chapters: 7 - Words: 12,705 - Reviews: 65 - Favs: 184 - Follows: 247 - Updated: 3/21 - Published: 8/26/2013 - [Shepard, Tali'Zorah] Ahsoka T., Garrus V.
The Joker and the Thief by Cinn
Kasumi Goto is one of the best thieves in the business. Gordon Tracy is the practical joker in International Rescue. Can either resist having some fun when their paths accidentally cross?
Crossover - Thunderbirds & Mass Effect - Rated: T - English - Adventure/Humor - Chapters: 1 - Words: 5,523 - Favs: 1 - Published: 3/20 - Gordon T., Kasumi G.
A Heart of Onyx by Those3Morons reviews
Devin Carmine didn't think that he'd live to see the end of the war; humans were dying by the tens of thousands everyday by the locust, so it was easy to see that his mindset was shared by many other people. However, when he was deployed to Ilima City, he discovers something that can help them end the war sooner rather than later. Only if he had more time to get it back to the COG.
Crossover - Gears of War & Mass Effect - Rated: M - English - Sci-Fi/Romance - Chapters: 26 - Words: 218,447 - Reviews: 90 - Favs: 103 - Follows: 123 - Updated: 3/19 - Published: 6/19/2019 - [OC, OC] Garrus V., Shepard
Command effect: Rise of the three powers by aris1606 reviews
Anyone wondering what would happen after the events of the Uprising? There are a lot of possibilities. Time machines, Yuriko Omega on the loose, desolators, giga fortresses and a lot of other stuff. It's gonna be a crazy ride.
Crossover - Mass Effect & Command & Conquer - Rated: T - English - Adventure - Chapters: 26 - Words: 67,476 - Reviews: 57 - Favs: 87 - Follows: 132 - Updated: 3/17 - Published: 10/16/2019 - Shepard
Operation Phoenix & Raven by Ordo Warrior reviews
Continuing from Best of Spartans and Spectres. Commander Shepard has been captured and Noble Six turns to the one group that can help save her, but will that help come at too great of a cost?
Crossover - Halo & Mass Effect - Rated: M - English - Chapters: 47 - Words: 154,975 - Reviews: 83 - Favs: 157 - Follows: 199 - Updated: 3/17 - Published: 10/21/2014 - SPARTAN-B312/Noble Six, J. Garson
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