Mass Effect Crossovers
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Drake, Emissary by Scififan33 reviews
Tim could say with certainty that he was having a bad day. Stupid magician, stupid spells. They had a plan to deal with him, they did! That plan did not involved Tim being hit. Or waking up on an alien planet. But he could adapt. But what he really wanted was to go home. Since he couldn't, he'd help them find a way to peace with their creators, they had saved his life after all
Crossover - Batman & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 6 - Words: 27,153 - Reviews: 18 - Favs: 64 - Follows: 83 - Updated: 9/24 - Published: 8/24 - Timothy D./Red Robin, Tali'Zorah, Shepard
The Terminus Exarchate by infamouswestgate reviews
Qelet B'Norai, Batarian cartel-kin and agent of the Covenant, travels the swallowed-yet-undigested worlds of the Terminus Exarchate! Can he save the Covenant Empire from collapsing underneath its own great weight?
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 16 - Words: 45,076 - Reviews: 15 - Favs: 9 - Follows: 13 - Updated: 9/23 - Published: 9/11
When magic decides one war isn't enough by Alykto reviews
Following Voldemort's return after the Triwizard Tournament, Dumbledore realized he couldn't possibly handle the incoming conflict on his own. He needed a general to prepare the war. His summoning ritual then dragged Commandant Shepard, Specter and N7 Alliance Marine fighting the Reapers to 12 Square Grimmault.
Crossover - Harry Potter & Mass Effect - Rated: T - English - Adventure/Hurt/Comfort - Chapters: 8 - Words: 13,221 - Reviews: 14 - Favs: 32 - Follows: 41 - Updated: 9/23 - Published: 6/29/2023 - Harry P., Ron W., Hermione G., Shepard
Galactic Conflicts: Tales of First Contact by TheDoctor1998 reviews
Humanity and its allies have stood strong after the Great War with the Covenant. Follow the Systems Alliance as it goes through a first contact nearly as disastrous as the one that lead to the Great War.
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi - Chapters: 10 - Words: 46,207 - Reviews: 247 - Favs: 480 - Follows: 669 - Updated: 9/22 - Published: 2/6/2023
Star Mahou effect by phantompain12 reviews
Tanya finally winds up in mass effect after having dealt with Being X. Starkiller's son too ends up in mass effect after his own sacrifice to stop the empire. This is something like that. I have no idea what I am going to write. Author note: Guys, I don't know what the hell I am doing. I just decided to write and this is the result. Any help would be appreciated as Eng is 2nd lang.
Crossover - Star Wars & Mass Effect - Rated: T - English - Humor/Adventure - Chapters: 22 - Words: 48,208 - Reviews: 47 - Favs: 81 - Follows: 102 - Updated: 9/21 - Published: 1/30
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: 3 - Words: 7,295 - Reviews: 25 - Favs: 65 - Follows: 89 - Updated: 9/20 - Published: 6/11 - Izuku M., Nezu/The Principal
As The Wind Abates by DingusMacGoo reviews
After witnessing the death of his oldest friend, an immortal Harry Potter turns to the stars in an attempt to find meaning in his life.
Crossover - Harry Potter & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 37 - Words: 88,622 - Reviews: 297 - Favs: 945 - Follows: 1,331 - Updated: 9/20 - Published: 2/6 - Harry P., J. Garson, Shepard
Rising from the Embers of Sera by thehappy reviews
The people of Sera rebuild, spreading to the stars. Wars will be waged. Peace will be sought. The Coalition has risen from the ashes to take their right to exist in the galaxy. They will survive...no matter the cost.
Crossover - Gears of War & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 29 - Words: 439,466 - Reviews: 587 - Favs: 780 - Follows: 923 - Updated: 9/20 - Published: 12/28/2020 - OC, U. Wrex, Shepard, Councilor Tevos
Stellaris Book 2: The Shadow of Cerberus by Stormhawk fan SHhype reviews
Mega Multi Crossover, Main aspects are Storm Hawks and Mass Effect, with characters from Stargate, Star Wars and more, Sequel to Stellaris Book 1: The Fledging. A year has passed since the Liberation of Atmos. Piper, Aerrow and Finn have joined Lark at the ACPA, while Shepard has returned to the UNE Navy. Meanwhile Repton has escaped execution with new allies, and a new plan.
Crossover - Storm Hawks & Mass Effect - Rated: T - English - Adventure/Sci-Fi - Chapters: 3 - Words: 29,834 - Reviews: 8 - Favs: 11 - Follows: 8 - Updated: 9/19 - Published: 5/27/2021 - Piper, Cyclonis, Illusive Man, Shepard
Operation ECLIPSE by HelenTheMoon reviews
Pre-ME1 post-Frontiers Xover, in which the Sonic version of Earth replaces ME Earth. A Batarian planet suddenly turns invisible, and things only get weirder from there. That poor STG agent won't know what hit him, that's for sure. And neither will the rest of the galaxy - once Sonic and Eggman get there. Crossposted on Spacebattles and AO3. Rating may change. NOW ON TV TROPES!
Crossover - Sonic the Hedgehog & Mass Effect - Rated: T - English - Sci-Fi/Fantasy - Chapters: 13 - Words: 139,994 - Reviews: 78 - Favs: 97 - Follows: 121 - Updated: 9/19 - Published: 11/26/2023 - Sonic, Tails, OC
The Boundary Effect - The Path of a Magician by xyzdreadnought reviews
Isika Valao is a young Asari child, with nothing to her name and a lot to prove. Enamoured by magic and the Alliance, she sets out to become what should Be impossible for the naturally biotic Asari, a magician. With the help of a certain ordinary Magician, she just might make that dream a reality. (A spin off Story to the Boundary Effect, written with Permission)
Crossover - Mass Effect & Touhou Project - Rated: T - English - Sci-Fi/Fantasy - Chapters: 13 - Words: 44,968 - Reviews: 52 - Favs: 217 - Follows: 289 - Updated: 9/18 - Published: 12/17/2018 - OC, Alice M., Marisa K.
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: 49 - Words: 161,466 - Reviews: 66 - Favs: 310 - Follows: 325 - Updated: 9/17 - Published: 8/2/2019
Ark effect Remake by EclipsePheniox reviews
After the attack on the Collector base failed, the Normandy SR-2 found themselves on Ark a planet roaming with primordial beasts. But as their Commander returns, things become more complex as they learn about Ark and the reason they are there and the purpose of the world.
Crossover - Mass Effect & ARK: Survival Evolved - Rated: T - English - Adventure/Sci-Fi - Chapters: 15 - Words: 41,732 - Reviews: 17 - Favs: 78 - Follows: 95 - Updated: 9/17 - Published: 1/3/2023 - Liara T'Soni, Miranda L., Shepard
Canadian Blues: Badge of Honor by brooklynrhyno reviews
The Citadel Party is in full swing, but Shepard has an unexpected guest wanting a moment of her time.
Crossover - X-Men & Mass Effect - Rated: T - English - Sci-Fi/Humor - Chapters: 1 - Words: 4,299 - Reviews: 3 - Favs: 7 - Follows: 2 - Published: 9/16 - James H./Wolverine/Logan, U. Grunt, Shepard - Complete
Transform Effect: Rise a Prime by RECKLESS SOLDIER-MS reviews
Two galaxies isolated from one another meet for the first time, just as the war between two opposing factions escalates. But the galaxy has more than first contact with a race of machines to worry about, ideals will be tested as an ancient evil returns to begin a cycle of genocide. A leader from the ranks of the Autobots must rise to stop both the Decepticons and the Reapers.
Crossover - Transformers/Beast Wars & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 33 - Words: 219,742 - Reviews: 264 - Favs: 405 - Follows: 398 - Updated: 9/16 - Published: 2/3/2014 - Optimus Prime, Megatron, Shepard
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: 30 - Words: 106,475 - Reviews: 194 - Favs: 630 - Follows: 918 - Updated: 9/16 - Published: 7/8/2022 - Rookie, Shepard
Estrella y Masa se Conocen by dark platinum reviews
Anthon fankhauser y John Shepard son dos individuos reconocidos por sus respectivos gobiernos como héroes de renombre, la única diferencia es la escala en la que operan, uno a salvado a un sector entero mientras que el otro a salvado a una galaxia entera, que ocurrirá cuando el primero se encuentre con el segundo.
Crossover - Mass Effect & Starfield - Rated: M - Spanish - Adventure/Sci-Fi - Chapters: 2 - Words: 20,672 - Reviews: 2 - Favs: 3 - Follows: 5 - Updated: 9/15 - Published: 5/24 - Miranda L., Shepard, Sarah Morgan, OC
Percy Jackson, The Original N7 (ON HIATUS) by GearTrail reviews
Commander Kate Shepard, commanding officer of the Normandy, was resurrected by Cerberus after the Normandy SR 1 was destroyed in a surprise attack by the Collectors. But even with her new mission, she couldn't forget her own, one that was passed down to her as a legacy of one of the greatest heroes Earth had, the long lost demigod Percy Jackson.
Crossover - Percy Jackson and the Olympians & Mass Effect - Rated: M - English - Fantasy/Sci-Fi - Chapters: 3 - Words: 10,580 - Reviews: 1 - Favs: 42 - Follows: 70 - Updated: 9/15 - Published: 1/5
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: 47 - Words: 814,031 - Reviews: 732 - Favs: 719 - Follows: 749 - Updated: 9/14 - Published: 9/13/2020 - Axel, Roxas, Xion, Shepard
The Second Contact war by Mythicspider629 reviews
After the battle for the citadel and jane Shepard's death the galaxy has finally begun to calm down and besides a handful of people everyone has forgotten about the Reapers or chooses to ignore them this makes things easy for the citadel council and with the majority of the Normandy crew scattered throw out the galaxy there is no one left to stop the Batarians from being stupid
Crossover - Call of Duty & Mass Effect - Rated: T - English - Chapters: 7 - Words: 12,762 - Reviews: 14 - Favs: 50 - Follows: 65 - Updated: 9/13 - Published: 3/28 - N. Reyes, E3N/Ethan, Garrus V., Councilor Sparatus
Quintessence Effect Collective Rebirth by EvaShinobiKaiserKnight reviews
Two Years have passed since the Paladins and the Normandy had suffered the tragedy of loss. A year since the Altean's have begun to return to the galaxy after the second battle of the Citadel. But the Reapers are not done as the Paladins and a revived John Shepard must gather allies to face this threat. This is their Rebirth into a new world of wonders as Heroes. NOW FORM VOLTRON!
Crossover - Mass Effect & Voltron: Legendary Defender - Rated: M - English - Sci-Fi/Family - Chapters: 6 - Words: 69,162 - Reviews: 31 - Favs: 28 - Follows: 30 - Updated: 9/13 - Published: 8/11 - [OC, Princess Allura] [Ashley W., Shepard]
Pillars of Virtue by Son of Caliban reviews
Though divided, the Human Sphere is strong, and few among it stronger than the O-12 Council's own Commander Jonathan Shepard, the Lion of Paradiso. As a potential candidate for the Citadel's Spectre unit, Shepard must first prove his ability by solving the death of one of the Citadel's top agents, uncovering a shadowy conspiracy which will change the galaxy forever...
Crossover - Mass Effect & Infinity: A Skirmish Game - Rated: T - English - Sci-Fi/Mystery - Chapters: 3 - Words: 25,163 - Reviews: 4 - Favs: 7 - Follows: 8 - Updated: 9/11 - Published: 8/25 - [Shepard, Kasumi G.] Kaidan A., D. Anderson
Robo Effect by Star Sage reviews
The Robotech wars are over. The survivors of Humanity and the Zentraedi are now alone in the universe, and so, come together, becoming something new, becoming Terrans. Now this race will find itself thrust into the galactic scene, as the Citadel Races and those beyond test these young upstarts, and in the shadows, old things begin to move.
Crossover - Robotech/Macross & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 68 - Words: 236,612 - Reviews: 660 - Favs: 955 - Follows: 1,049 - Updated: 9/9 - Published: 4/14/2015
Mass Effect Nega Ally by Mace sheperd reviews
Ben Tennyson was always a dour kid who thought everyone around him was a pain in the neck. Getting The Chaquetrix didn't change his misanthropic attitude. Now he finds himself in an alternate universe where intelligent machines are about to destroy all life, and if he doesn't want to die he'll be forced to cast his apathy aside and become a hero. NEGA BEN WITH CHAQUETRIX!
Crossover - Ben 10 & Mass Effect - Rated: M - English - Sci-Fi/Romance - Chapters: 1 - Words: 7,641 - Reviews: 1 - Favs: 7 - Follows: 8 - Published: 9/9 - Nega Ben, Jack
Canadian Blues: Beauty Marks by brooklynrhyno
Just how did Wrex get those scars? Here is the legend.
Crossover - X-Men & Mass Effect - Rated: T - English - Sci-Fi/Humor - Chapters: 1 - Words: 5,002 - Favs: 3 - Follows: 4 - Published: 9/8 - James H./Wolverine/Logan, U. Wrex - Complete
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