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Spectre by Jonathan Palmer reviews
When the SSV Normandy is attacked Ashley convinces Shephard to to go with her. Follow their travels as Shephard makes it off the Normandy alive. Stranded on late 20th century Earth what will they do now? AU, Smart Harry, Female Shephard.
Crossover - Harry Potter & Mass Effect - Rated: M - English - Sci-Fi/Friendship - Chapters: 7 - Words: 23,471 - Reviews: 34 - Favs: 143 - Follows: 238 - Updated: 6/4 - Published: 1/20 - Harry P., Ashley W., Shepard
Daily war with monster girls by Masterdude21 reviews
With the help of the highly-motivated extra-species in the military, mankind holds their own against the brutal onslaught of the Covenant. In their haste to close the gap in space warfare, ONI stumbles upon Relay 314. Even as new enemies arise, the galaxy constantly thwarts Cortana's schemes to build the Master Chief the ultimate harem. Halo/Mass Effect/Monster Musume crossover.
Crossover - Halo & Mass Effect - Rated: M - English - Humor/Romance - Chapters: 27 - Words: 369,940 - Reviews: 1040 - Favs: 1,967 - Follows: 2,237 - Updated: 6/4 - Published: 9/20/2016 - Master Chief/John-117, Cortana, Shepard
Dark Effect by Vargravn reviews
At the risk of Eternal boredom Dante Sparda and V join The crew of the Normandy and venture into the darkest corners of the galaxy. On a mission to stop the Collectors, Shepard comes face-to-face with God-like beings with powers beyond imagination and Dante faces old enemies of his past, Thereby propelling all of them into an epic game of life and death.
Crossover - Devil May Cry & Mass Effect - Rated: M - English - Sci-Fi - Chapters: 3 - Words: 8,314 - Reviews: 3 - Favs: 13 - Follows: 23 - Updated: 6/4 - Published: 5/13 - Dante(DmC), Vergil(DmC), V, Shepard
Galactic nightmare by RadiantVoid reviews
It has been a year since Ghost returned to his own dimension. Since then, Shepard has kept on doing what she does best : preparing for the Reapers' arrival, and trying to wake the galaxy up to their impending doom, to little success. Now, as they stand at the edge of the precipice, a mysterious figure appears before Shepard : Grimm, the Troupe master...
Crossover - Mass Effect & Hollow Knight - Rated: T - English - Adventure - Chapters: 12 - Words: 59,615 - Reviews: 70 - Favs: 208 - Follows: 264 - Updated: 6/4 - Published: 2/20/2021 - Shepard, the Knight
Mass Effect: Into Darkness by Lara Jayd reviews
When Revan is thrown into Citadel space by a phenomenon she has never encountered before, she must join Shepard in her fight against the Reapers in order to save both of their galaxies.
Crossover - Star Wars & Mass Effect - Rated: M - English - Adventure/Romance - Chapters: 13 - Words: 54,862 - Reviews: 43 - Favs: 154 - Follows: 251 - Updated: 6/4 - Published: 6/14/2020 - Revan, Carth O., Garrus V., Shepard
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: 14 - Words: 112,805 - Reviews: 192 - Favs: 446 - Follows: 523 - Updated: 6/2 - Published: 7/10/2020 - Clark K./Kal-El/Superman, Miranda L.
Effect of a seal by Fanreader26 reviews
it was placed on him when he was born and he was never informed about it. but one day on the training field, he overloaded a seal that kept a secret from everyone in the village including himself. now that the seal is broken, he finds more about his ancestry and a new power that goes beyond his village. Gender bender of sorts. it will make sense if you give a chance
Crossover - Naruto & Mass Effect - Rated: T - English - Drama/Sci-Fi - Chapters: 3 - Words: 25,007 - Reviews: 37 - Favs: 87 - Follows: 109 - Updated: 6/1 - Published: 4/1 - Naruto U., Hiruzen S.
Rise of Humanity by James118 reviews
Soon after the war with the Covenant, humanity discovers a Mass Relay that opens the door to the rest of the galaxy. But it also awakens the greatest threat humanity has ever faced. Male Shepard/Liara. OC/Krystal (from Star Fox).
Crossover - Halo & Mass Effect - Rated: M - English - Adventure/Sci-Fi - Chapters: 2 - Words: 22,072 - Reviews: 20 - Favs: 78 - Follows: 111 - Updated: 5/31 - Published: 5/21 - [Shepard, Liara T'Soni] 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: T - English - Sci-Fi/Adventure - Chapters: 3 - Words: 12,045 - Reviews: 68 - Favs: 291 - Follows: 433 - Updated: 5/31 - Published: 12/26/2021 - OC, Tali'Zorah, Admiral Hackett, Rael'Zorah
Effect of a Titanfall by MidnightFenrir reviews
When you die, you expect things to happen, from the void to eternal happiness. But if given the choice to live again, wouldn't you take it? I did. Since then, it's been one crazy thing after the other, the latest of which was to end up in yet another universe. But what can you expect when the manifestations of Luck and Fate themselves tell you it's going to be an adventure? OC/SI.
Crossover - Mass Effect & Titanfall - Rated: M - English - Adventure/Sci-Fi - Chapters: 7 - Words: 52,523 - Reviews: 305 - Favs: 1,526 - Follows: 1,988 - Updated: 5/29 - Published: 12/17/2016 - Kasumi G., Shepard, OC, BT-7274
The Good Shepherd: Season One by Dingo32 reviews
In her time Carrie white was the first human biotic, but she was driven to insanity, slaughter and apparent suicide by the cruelty of those around her. In another age her gift of natural biotics holds the key to a better life for those of her ilk, but that may not be all she has to offer the galaxy. Undergoing rewrite.
Crossover - Mass Effect & Carrie - Rated: M - English - Sci-Fi/Supernatural - Chapters: 1 - Words: 9,195 - Reviews: 24 - Favs: 66 - Follows: 101 - Updated: 5/28 - Published: 5/6/2016
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: 20 - Words: 90,315 - Reviews: 201 - Favs: 322 - Follows: 400 - Updated: 5/28 - Published: 8/17/2017 - Garrus V., Liara T'Soni, Shepard, OC
A few Titans Solves Many Issues, Including the Reapers by vmoneywashere reviews
In a distant yet expansive corner of the galaxy, many races rose and fell without anyone noticing. Yet a collection survived their ordeals and now look outwards. They bring Ideals, Peace, Prosperity, all under the UNSA and its Custodianship. When the Quarian Migrant fleet encounters an Expedition fleet, the nomads find a new home and a new family. (more updates in the winters) HFY
Crossover - Mass Effect & Stellaris - Rated: T - English - Sci-Fi/Family - Chapters: 11 - Words: 47,718 - Reviews: 106 - Favs: 373 - Follows: 546 - Updated: 5/28 - Published: 11/16/2021 - [Tali'Zorah, Shepard] Rael'Zorah, OC
The Ruby of Cerberus by Scrambleman17 reviews
1 week before classes start again, team RWBY watched a report relaying to a strange light at Vale's industrial district, what they didn't know is that it would lead them to another dimension quite different from their own, and unwillingly trap themselves in this strange dimension. contains liberties with canon from both franchises and inevitable OCs.
Crossover - Mass Effect & RWBY - Rated: M - English - Sci-Fi/Adventure - Chapters: 16 - Words: 75,101 - Reviews: 30 - Favs: 60 - Follows: 89 - Updated: 5/27 - Published: 9/7/2021 - Miranda L., OC, Team RWBY
My Leather seats by Sid117 reviews
Something is bothering Normandy's pilot Joker "Jeff Moreau " and SR2 intends to find out. What Joker reveals will change their relationship between them forever.
Crossover - Mass Effect & KanColle - Rated: M - English - Romance/Angst - Chapters: 9 - Words: 9,585 - Reviews: 2 - Favs: 3 - Follows: 3 - Updated: 5/27 - Published: 12/24/2021
The Normandy's Nomad (Early Concept) by illFatedSuccess reviews
An early concept for a future story that see's V join Shepard's fight against the Collectors. This chapter focuses on Jack's recruitment mission and showcases Shepard's first time witnessing V and his cybernetics in action. Please do enjoy and leave a review on what you think.
Crossover - Mass Effect & Cyberpunk 2077 - Rated: M - English - Sci-Fi/Adventure - Chapters: 2 - Words: 5,953 - Reviews: 16 - Favs: 42 - Follows: 59 - Updated: 5/27 - Published: 1/21 - Garrus V., Shepard, V, Johnny Silverhand - Complete
The Normandy's Nomads by illFatedSuccess reviews
Mikoshi worked. V is no longer in danger of being overwritten but Johnny is still along for the ride. Months after single handedly assaulting Arasaka Tower, V is offered the job of a lifetime that could help set up his new family in the Aldecaldos forever. Without even thinking he takes it, bringing Panam along with him. Poor gonk had no idea what he was getting into.
Crossover - Mass Effect & Cyberpunk 2077 - Rated: M - English - Adventure/Sci-Fi - Chapters: 1 - Words: 6,762 - Reviews: 7 - Favs: 64 - Follows: 94 - Published: 5/26 - Garrus V., V, Panam P., Johnny Silverhand
A Metal Guardian by JawsOnYou67 reviews
The Universal Century, only a few short years ago humanity nearly eradicated itself to the tune of a madman, now it spreads, free of most of its old hatred. Yet the galaxy won't let them rest. Terminal prepares the twin Queens as best it can. (Gundam x Mass Effect)
Crossover - Gundam UC & Mass Effect - Rated: T - English - Sci-Fi/Humor - Chapters: 8 - Words: 129,378 - Reviews: 92 - Favs: 257 - Follows: 324 - Updated: 5/25 - Published: 8/18/2020 - Amuro R., Char A., Tali'Zorah, Admiral Hackett
Spirit of Fire by GoldenThorns-Fiverr reviews
A Crossover fanfic I did as a Fiverr request.
Crossover - Halo & Mass Effect - Rated: T - English - Chapters: 1 - Words: 7,853 - Reviews: 3 - Favs: 8 - Follows: 8 - Published: 5/24 - Complete
Mass Effect: Galaxy at war by palik reviews
A Citadel Exploration fleet filled with people the council didnt want around discovers something that will change the face of Citadel Space forever. The council will experience a crash course in the fight for survival (Reaper Incursion Arc)
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi - Chapters: 27 - Words: 81,864 - Reviews: 503 - Favs: 1,070 - Follows: 1,549 - Updated: 5/23 - Published: 6/18/2020
A certain Level 5 in Shanxi by reinDank
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: 715 - Favs: 4 - Follows: 9 - Published: 5/23 - OC, Accelerator - Complete
Reshiram Effect by Knightwolf1875 reviews
A rift in space/time has aloud a young anthromorphic reshiram named sara Denova to enter the Mass Effect world. What awaits her and Sheaprd as they go along in ME2's battle with the Collecters?
Crossover - Pokémon & Mass Effect - Rated: M - English - Fantasy - Chapters: 7 - Words: 68,502 - Reviews: 17 - Favs: 38 - Follows: 41 - Updated: 5/22 - Published: 1/12/2013 - Reshiram, Shepard
Those Who Favor Fire by The.A.I.1502 reviews
In a universe reeling from the Blip, Isabelle Collins is shattered by her brother's death. But humanity's intent on colonizing the stars reveals an undeniable truth - Thanos was the harbinger of something much worse. Isabelle must peel back the layers of her new reality, because this time, the stakes are much higher than half of all life.
Crossover - Marvel & Mass Effect - Rated: M - English - Sci-Fi/Fantasy - Chapters: 24 - Words: 209,266 - Reviews: 17 - Favs: 46 - Follows: 63 - Updated: 5/22 - Published: 6/1/2020 - OC, P. Coulson, Harbinger, Shepard
Soul Effect by Story-lover1414 reviews
The Chosen undead didn't confront Gwyn, didn't link the first flame and as the world around him starts to to break, he created a way to escape. In a new world the chosen undead made himself king and brought the world under his command, with the whole world the only thing left were the stars beyond but space itself brings forth entirely new challenges and trials
Crossover - Mass Effect & Dark Souls - Rated: M - English - Chapters: 3 - Words: 6,746 - Reviews: 10 - Favs: 66 - Follows: 105 - Updated: 5/21 - Published: 6/7/2021
Assassin's Creed: The Mass Effect by TomTheCat1 reviews
The Reaper War, 2186. Even in the face of complete annihilation, The Milky Way still suffers from infighting, some of which has been raging for thousands of years. As the last surviving member of the Assassin Brotherhood, Abigail has one chance to bring an end to the Templars, and to Cerberus.
Crossover - Mass Effect & Assassin's Creed - Rated: T - English - Romance/Adventure - Chapters: 26 - Words: 47,212 - Reviews: 8 - Favs: 54 - Follows: 67 - Updated: 5/21 - Published: 6/23/2019 - Shepard, Samantha T., Kai Leng, OC
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