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Fall of the Citadel by Richard Scepton reviews
A fleet without an ocean, a humanity scarred forever by war. An admiral without a fleet, and a galaxy on the brink of war. It is the link in between, that will decide our fate, and that of the galaxy as a whole. CW: PTSD, depression, hand-to-hand combat and bayonets. Recommend not for children
Crossover - Mass Effect & Kantai Collection - Rated: T - English - Romance/Sci-Fi - Chapters: 12 - Words: 124,324 - Reviews: 65 - Favs: 75 - Follows: 118 - Updated: 1/17 - Published: 10/26/2023 - Shepard, Shigure, OC, Fubuki
Enthrallment Colors by undead3 reviews
Prince of the rogue human state, the Britannian Empire, Lelouch stumbles into grander conspiracies as he makes a bid for position within the Empire. Meanwhile Hana Shepard has been flung head first into a race against a renegade Spectre with the fate of all life in the balance. Are these two rising stars saviors, or destined to burn the galaxy in the flames of war?
Crossover - Code Geass & Mass Effect - Rated: M - English - Drama/Sci-Fi - Chapters: 5 - Words: 27,858 - Reviews: 9 - Favs: 30 - Follows: 35 - Updated: 1/16 - Published: 1/8 - Lelouch L., Kallen S., Shepard, Garrus V.
The Teran Knight by ct-1408
Shepard has a younger brother who becomes a jedi, how will he help in the war with the reapers and how will he change the fate of his brother.
Crossover - Star Wars & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 1 - Words: 3,591 - Favs: 4 - Follows: 4 - Published: 1/14 - [Ashley W., Shepard]
On the Shoulders of Giants by Shoot The Runner reviews
Two galaxies thrown together by a cosmic fluke. On one side of the galaxy, the war-weary UNSC vows to rebuild and become a giant in the stars so that they will never be so helpless again. Whilst another humanity is still finding its feet in the Citadel, with treachery and politics hindering its progress. How does the merging of two galaxies impact the course of all of their fates?
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 2 - Words: 19,589 - Reviews: 75 - Favs: 355 - Follows: 510 - Updated: 1/14 - Published: 6/20/2023 - Master Chief/John-117, T. Hood, Shepard, D. Udina
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: 35 - Words: 288,195 - Reviews: 341 - Favs: 762 - Follows: 847 - Updated: 1/14 - Published: 7/10/2020 - Clark K./Kal-El/Superman, Miranda L. - Complete
Stellar Effect by Brandon Storm reviews
The Reapers trap was perfect in its design. Their execution refined over billions of years, their technology refined since the dawn of time itself. Right up until Someone Broke the Trap!
Crossover - Mass Effect & Stellaris - Rated: T - English - Adventure/Sci-Fi - Chapters: 68 - Words: 299,051 - Reviews: 276 - Favs: 399 - Follows: 522 - Updated: 1/14 - Published: 8/7/2022
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: 7 - Words: 31,765 - Reviews: 139 - Favs: 287 - Follows: 409 - Updated: 1/14 - Published: 2/6/2023
A New World by KE12 reviews
Liara crash lands on an alien world beyond her imagination. Short story with an open end.
Crossover - Mass Effect & Avatar - Rated: K - English - Adventure/Sci-Fi - Chapters: 1 - Words: 3,188 - Reviews: 3 - Favs: 3 - Follows: 5 - Published: 1/13 - Complete
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: 19 - Words: 44,693 - Reviews: 139 - Favs: 376 - Follows: 429 - Updated: 1/13 - Published: 4/20/2021 - [Garrus V., Shepard] [Whitley S., Tali'Zorah]
Drift Effect by Demon Eyes Laharl reviews
In the early 21st Century, Humanity made First Contact. By the end of it, they lost Earth. However, they survived, carving their place in the sea of stars, hoping one day to finally retake back their home world. The void, though, is a dangerous place. Another alien artifact was found near one of their border worlds, which would lead to another conflict.
Crossover - Mass Effect & Misc. Movies - Rated: M - English - Chapters: 12 - Words: 96,566 - Reviews: 72 - Favs: 207 - Follows: 299 - Updated: 1/12 - Published: 8/13/2023
The Sword of the Geth by Doctor poo and the TURDIS reviews
Dying on Mantle's Approach, Cortana wakes up in an unfamiliar environment. In her drive to get home, she 'employs' the assistance of the local synthetics. She never wanted to be a galactic overlord. But a UNSC AI in an environment woefully unprepared for one of her caliber makes an easy one.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Humor - Chapters: 20 - Words: 103,845 - Reviews: 459 - Favs: 929 - Follows: 1,308 - Updated: 1/12 - Published: 11/23/2023 - Cortana, Shepard
Mario Effect by OroDeus
Haunted by visions of impending doom, Mario summons his ragtag team of explorers to adventure. Their journey across the stars will uncover the koopa king's horrible plot to take over the galaxy.
Crossover - Mario & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 3 - Words: 3,547 - Favs: 1 - Follows: 3 - Updated: 1/11 - Published: 12/27/2023 - Mario, Luigi, Daisy, Toad
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: 28 - Words: 128,198 - Reviews: 7 - Favs: 21 - Follows: 26 - Updated: 1/11 - Published: 6/15/2021
Resident Evil X Mass Effect: The Nightmare Begins by venom rules all reviews
On a mission by the Citadel Council, an elite team and a Turian Spectre would encounter horrors beyond their imagination. Rated M just in case.
Crossover - Resident Evil & Mass Effect - Rated: M - English - Horror/Sci-Fi - Chapters: 1 - Words: 2,225 - Reviews: 5 - Favs: 13 - Follows: 15 - Published: 1/11 - Jill V., A. Wesker, Nihlus K.
Stellaris: Deja Vu by AdriannairdA reviews
When the Technocracy loses a science ship while exploring a nearby galaxy identical to the Milky Way, what first is a simple search and destroy mission becomes something much more complicated when it turns out, there are humans and other aliens there too. This'll be interesting... WARNING: Contains Plot Deviation and Shitty Dialogue
Crossover - Mass Effect & Stellaris - Rated: M - English - Sci-Fi/Adventure - Chapters: 1 - Words: 2,874 - Reviews: 3 - Favs: 11 - Follows: 15 - Published: 1/10 - OC
The Exiles:A New Power by Johnnieboy11 reviews
The beginning of the Battle For Earth signaled the start of the final, bloodiest campaign of the Human-Covenant War. Hastily, a plan is put into motion and an Ark Fleet, composed of a dozen Phoenix-class vessels and their escorts, makes the jump out of system. Either interference, or malfunction, causes their arrival to a new Galaxy, where new threats lurk just around the corner.
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 14 - Words: 54,995 - Reviews: 248 - Favs: 818 - Follows: 1,219 - Updated: 1/10 - Published: 12/26/2021 - OC, Tali'Zorah, Admiral Hackett, Rael'Zorah
First Contact with the Angels (Remake) by AntrosAscended reviews
Horus rebelled against the machinations of Chaos and sacrificed himself for the Galaxy; Lorgar's Rebellion finally seems to have become a distant memory for the Imperium. On the 30th Anniversary of the Warmaster's death, a new swath of space would be found by accident, setting in motion whole new possibilities or new failures. I'm Antros And I'm Back to remake my first Story
Crossover - Warhammer & Mass Effect - Rated: T - English - Drama/Sci-Fi - Chapters: 1 - Words: 2,865 - Reviews: 13 - Favs: 82 - Follows: 107 - Published: 1/10 - Space Marines, Primarch/s, Councilor Tevos, Councilor Sparatus
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: 15 - Words: 52,880 - Reviews: 128 - Favs: 474 - Follows: 707 - Updated: 1/10 - Published: 7/8/2022 - Rookie, Shepard
Adventures of Captain Jason and Agronauts by johny woodpecker reviews
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: 8 - Words: 7,809 - Reviews: 1 - Updated: 1/8 - Published: 10/14/2022
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: 50 - Words: 233,581 - Reviews: 355 - Favs: 1,092 - Follows: 1,222 - Updated: 1/8 - Published: 10/31/2022 - Shepard, V
Asymmetry: A Tragedy in Ten Acts by Pseudomonus reviews
Almost 200 years after the Reapers' destruction, Commander Benezia Shepard is given a top secret mission: To explore a strange new universe; to seek out new threats and new enemies; to boldly go where no Asari has gone before! And, at the height of the Dominion war, with the Federation facing defeat, Captain Forest encounters an impossible ship that may hold the key to victory.
Crossover - StarTrek: Deep Space Nine & Mass Effect - Rated: M - English - Sci-Fi/Drama - Chapters: 10 - Words: 80,244 - Reviews: 20 - Favs: 25 - Follows: 33 - Updated: 1/8 - Published: 11/7/2023
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: 45 - Words: 787,499 - Reviews: 695 - Favs: 634 - Follows: 661 - Updated: 1/6 - Published: 9/13/2020 - Axel, Roxas, Xion, 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: 25 - Words: 381,034 - Reviews: 420 - Favs: 693 - Follows: 822 - Updated: 1/6 - Published: 12/28/2020 - OC, U. Wrex, Shepard, Councilor Tevos
SAGE EFFECT by The Guarding Dark reviews
Dying at the tender age of nineteen sucked. Being reborn In a doomed future. With a Pair of Rinnegan eyes, and an apocalypse bearing down on me. Sucked even more. And being born on Mindoir certainly didn't help matters. (Rated M for extreme blood and gore as of chapter ten, read at your own risk. Possible OCXFemshep.)
Crossover - Naruto & Mass Effect - Rated: M - English - Adventure/Drama - Chapters: 21 - Words: 77,598 - Reviews: 512 - Favs: 1,196 - Follows: 1,549 - Updated: 1/6 - Published: 9/8/2014 - Shepard, OC
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: 10 - Words: 33,616 - Reviews: 13 - Favs: 64 - Follows: 80 - Updated: 1/5 - Published: 1/3/2023 - Liara T'Soni, Miranda L., Shepard
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