Mass Effect Crossovers
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Mass Effect: Resurrection by RabidRabbids reviews
Shepard's life hadn't gotten any easier. Entire colonies were disappearing, millions of people gone. And that's not even mentioning she'd been dead for two years, but desperate times call for desperate measures, and Shepard is forced to work with Cerberus to find out what's behind the disappearances. Thankfully, she's got monsters backing her up. (Sequel to Monstrum Immortalem)
Crossover - Mass Effect & Guardians of the Galaxy - Rated: M - English - Sci-Fi/Adventure - Chapters: 18 - Words: 80,038 - Reviews: 4 - Favs: 14 - Follows: 18 - Updated: 8/26 - Published: 6/15/2021
The New Order by Germanspeaker reviews
The Emperor give Thrawn everything what he need to destroy the Rebellion in the near of Lothal, but as he moves from Kuat to Lothal he hits a hyperspace anomaly. What Thrawn will do when he arifes with the sevens fleet the terminus systems? Will he brings the imperial order to this new galaxy?
Crossover - Star Wars & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 7 - Words: 19,659 - Reviews: 37 - Favs: 139 - Follows: 189 - Updated: 8/26 - Published: 6/14 - Thrawn
BattleTech: The Mass Effect by IX404 reviews
During the beginning of the Reaper War, Shepard is informed of a Prothean artifact claimed by Cerberus and sent to stop them. Little does he know is that soon, he will find himself and his crew in a world both familiar and alien to their own.
Crossover - Mechwarrior/Battletech & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 78 - Words: 407,181 - Reviews: 567 - Favs: 203 - Follows: 238 - Updated: 8/26 - Published: 12/21/2020 - Garrus V., Shepard, James V., Nyreen K. - 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: 21 - Words: 230,906 - Reviews: 97 - Favs: 308 - Follows: 423 - Updated: 8/24 - Published: 6/13/2020 - Necrons, Shepard
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: 11 - Words: 131,842 - Reviews: 66 - Favs: 307 - Follows: 352 - Updated: 8/24 - Published: 12/25/2019 - Naruto U., J. Garson, Garrus V., Tali'Zorah
Vampire: The Blood Effect by Not-KamalaKhan315 reviews
After the apocalypse laid civilization low, the vampires rose to claim dominion over the world... and over the human race. Now the undisputed masters of what is now Terra, these Kindred and their mortal vassals set out amongst the stars to claim more domains, but they soon discover that they are not alone in this galaxy of darkness...
Crossover - World of Darkness & Mass Effect - Rated: M - English - Supernatural/Sci-Fi - Chapters: 3 - Words: 20,800 - Reviews: 10 - Favs: 42 - Follows: 54 - Updated: 8/22 - Published: 8/15 - Mage, Vampire
Primal Beings, New Horizons by Trico216 reviews
Lustria is destroyed, the lizardmen departed for the stars. Finding an ancient gateway, what will the children of the Old Ones find on the other side?
Crossover - Warhammer & Mass Effect - Rated: M - English - Sci-Fi/Fantasy - Chapters: 5 - Words: 10,933 - Reviews: 34 - Favs: 92 - Follows: 132 - Updated: 8/22 - Published: 3/11 - Lizardmen
The Crusade of the Lost by Ninoslav reviews
A fleet of Imperial reinforcements, Mechanicus detachment and a chapter of White Eagles meant for Cadian sector are swallowed in the unruly sea that is Warp. They emerge into a new universe, one without the Emperor, their faith strong, they will see this galaxy conquered.
Crossover - Warhammer & Mass Effect - Rated: T - English - Sci-Fi/Horror - Chapters: 27 - Words: 195,120 - Reviews: 283 - Favs: 471 - Follows: 583 - Updated: 8/21 - Published: 8/16/2019
Great Effort and A Hand by DemonKnight312 reviews
Alyssa wanted closure after returning to the land of the living, which in turn led to her bringing back an ancient warrior trapped by a devious would be god. The remains of his world left as a husk, the Dragonborn joins the Commander on her quest to save the Universe.
Crossover - Elder Scroll series & Mass Effect - Rated: M - English - Fantasy/Sci-Fi - Chapters: 5 - Words: 21,214 - Reviews: 43 - Favs: 179 - Follows: 281 - Updated: 8/20 - Published: 5/23/2021 - Dragonborn/Dovahkiin, 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: 13 - Words: 206,476 - Reviews: 210 - Favs: 463 - Follows: 573 - Updated: 8/19 - Published: 12/28/2020 - OC, U. Wrex, Shepard, Councilor Tevos
The Final Cycle by The Grandiose Library
In Progress
Crossover - Mass Effect & X-overs - Rated: T - English - Sci-Fi/Fantasy - Chapters: 1 - Words: 1,953 - Favs: 10 - Follows: 12 - Published: 8/16
The Might of Humanity by The Grandiose Library reviews
In Progress
Crossover - Mass Effect & Halo - Rated: M - English - Adventure/Sci-Fi - Chapters: 1 - Words: 6,741 - Reviews: 11 - Favs: 70 - Follows: 85 - Published: 8/16
The Galaxy under an Iron Heel by KanisRussell reviews
After conquering the Earth and placing it beneath the heavy weight of a jackboot, the Third Reich sets it's hungry eyes on a new target. The Final frontier. They discover things they never thought possible, and quickly finds that they might not be the only masterrace in existence. "Life does not forgive weakness"
Crossover - Mass Effect & Wolfenstein series - Rated: M - English - Adventure/Sci-Fi - Chapters: 21 - Words: 96,065 - Reviews: 206 - Favs: 337 - Follows: 429 - Updated: 8/16 - Published: 8/17/2017 - Garrus V., Liara T'Soni, Shepard, OC
A Whole New World by Spartan III Commando reviews
Noble six's story did not end on Reach, he escaped the doomed planet after saving the Pillar of Autumn, and he and 117 fought across each Halo, until an incident sent him to a whole new world. And he is wholly unprepared for the journey in store.
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 8 - Words: 32,575 - Reviews: 47 - Favs: 262 - Follows: 385 - Updated: 8/16 - Published: 7/7/2016 - SPARTAN-B312/Noble Six
Mass Effect Terran Effect by The Grandiose Library reviews
Work In Progress
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 1 - Words: 695 - Reviews: 3 - Favs: 23 - Follows: 32 - Published: 8/16
Mass Avengers Effect by JungleFurious reviews
It's been thirty years since Thanos, since the endgame battle between his forces and the Avengers. Now the majority of the Avengers have retired, but the mantles have been filled by their children, now full-grown adults. When a portal sends a few of the Avengers to a new universe, things are going to get hectic. The world of Mass Effect will never be the same.
Crossover - Mass Effect & Avengers - Rated: M - English - Sci-Fi/Adventure - Chapters: 9 - Words: 71,949 - Reviews: 32 - Favs: 107 - Follows: 142 - Updated: 8/15 - Published: 6/19/2021 - [Shepard, Liara T'Soni] [OC, Tali'Zorah]
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: M - English - Adventure/Sci-Fi - Chapters: 32 - Words: 113,908 - Reviews: 76 - Favs: 147 - Follows: 219 - Updated: 8/15 - Published: 10/16/2019 - Shepard
Whitley Shepard: The Commander's Brother by Hadrian Kallig reviews
Whitley Schnee couldn't take it anymore. The soul crushing loneliness was too much for the boy, and he ended up taking his life. However, in a twist of fate, an amnesiac Whitley ends up being found by Hannah Shepard. Years later, as a fresh faced engineering graduate, Whitley Shepard decides to join his sister's mission to hunt down Saren.
Crossover - Mass Effect & RWBY - Rated: M - English - Romance/Family - Chapters: 17 - Words: 36,813 - Reviews: 119 - Favs: 303 - Follows: 356 - Updated: 8/14 - Published: 4/20/2021 - [Garrus V., Shepard] [Whitley S., Tali'Zorah]
I'll Always Find You by Scififan33 reviews
Sora T'Soni just wanted to keep her family safe, to put her skills to use for her people, so she joined the military. Riku Yamada was running from a past he wished he could forget, grateful to those who saved him, so he joined the Alliance military. The Saren and Sovereign attacked and both their lives changed forever. Something drew them together but how could it work?
Crossover - Kingdom Hearts & Mass Effect - Rated: M - English - Sci-Fi - Chapters: 5 - Words: 26,980 - Reviews: 6 - Favs: 14 - Follows: 14 - Updated: 8/14 - Published: 6/30 - [Riku, Sora] [Liara T'Soni, Shepard]
Of Shepards and Imperials by Mandrake109 reviews
One of the oldest living perpetuals along with the remains of an inquisitorial retinue are transported into an alternative past where aliens are not simply foes to slay but friends and allies to mankind. For the perpetual it's a nice change of pace for the others? Well they may learn that co-existence might not be such a bad thing after all... Rated M for obvious reasons.
Crossover - Warhammer & Mass Effect - Rated: M - English - Sci-Fi/Fantasy - Chapters: 8 - Words: 92,484 - Reviews: 67 - Favs: 191 - Follows: 262 - Updated: 8/13 - Published: 3/7/2019 - Imperial Guard, OC, Shepard
The Final Horizon by Touhoufanatic reviews
Taking a different route of technology, humanity ascends to the stars upon Sails of light with hearts full of hope and adventure. the second Age of Exploration has truly begun, and nothing, not aliens, ancient space squids, or genocidal robots will stop humanity, and perhaps its greatest legend of the seas, from finding the Horizon once more! Rated T for now.
Crossover - Pirates of the Caribbean & Mass Effect - Rated: T - English - Adventure - Chapters: 2 - Words: 4,701 - Reviews: 30 - Favs: 185 - Follows: 258 - Updated: 8/12 - Published: 7/31 - Capt. Jack Sparrow
Star-Bound by The Incredible Muffin reviews
Some destinies are written out centuries, or even millennia, ahead of time. However, when destiny is derailed, new plans have to be implemented. Sometimes, that involves ripping someone away from the peaceful end they seek and thrusting them into a tide of never-ending war in order to fix what can never be repaired.
Crossover - Warhammer & Mass Effect - Rated: M - English - Sci-Fi/Supernatural - Chapters: 36 - Words: 245,454 - Reviews: 1037 - Favs: 1,273 - Follows: 1,562 - Updated: 8/11 - Published: 5/29/2019
Things Alliance and Imperial Forces are No Longer Allowed to Do by thelordofdarkreunion reviews
As blending cultures and bored soldiers often goes, both the Alliance and Imperial militaries have gotten up to some very interesting hijinks. Admiral Hackett and the Commissariat have decided enough is enough, and posted these handy rules for their respective soldiers to follow.
Crossover - Warhammer & Mass Effect - Rated: K+ - English - Humor/Sci-Fi - Chapters: 1 - Words: 1,595 - Reviews: 19 - Favs: 54 - Follows: 39 - Published: 8/11 - Imperial Guard, Space Marines, Admiral Hackett - Complete
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: 1 - Words: 28,458 - Reviews: 3 - Favs: 15 - Follows: 17 - Published: 8/10
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: 5 - Words: 91,758 - Reviews: 16 - Favs: 53 - Follows: 58 - Updated: 8/10 - Published: 11/6/2021 - Imperial Guard, Tyranids, OC, Shepard
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