Mass Effect Crossovers
Filters
3.5K | « Prev Page 1 2 3 4 5 12 .. Last Next »

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: 26 - Words: 119,314 - Reviews: 7 - Favs: 20 - Follows: 25 - Updated: 8/30 - Published: 6/15/2021
The Effect of a Horse and a Dragon by Vimesenthusiast reviews
A different decision right after being cursed leads to a very different Ranma showing up in Nerima. When he goes after Herb to beat some sense into him Ryoga takes the chance to get rid of his rival once and for all, sending both combatants to the Mass Effect universe. What changes will two martial artists and their use of ki have on the coming conflict? RanmaXTaliXKasumiXSama
Crossover - Ranma & Mass Effect - Rated: M - English - Humor/Adventure - Chapters: 6 - Words: 121,701 - Reviews: 555 - Favs: 2,068 - Follows: 2,124 - Updated: 8/29 - Published: 2/2/2014 - Ranma, Kasumi G., Tali'Zorah, Samara
Feared Reverence by ayab reviews
376 years after the battle between heaven and earth. Two humans have achieved godhood. Using their power to guide humanity to the stars. How will the galaxy react to see a species so advanced yet so primitive? So powerful yet not wanting to use their power. They are what the citadel race aspires to be and hates because of their jealousy.
Crossover - Naruto & Mass Effect - Rated: T - English - Fantasy/Sci-Fi - Chapters: 16 - Words: 53,250 - Reviews: 134 - Favs: 263 - Follows: 361 - Updated: 8/28 - Published: 1/14
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: 30 - Words: 244,576 - Reviews: 323 - Favs: 702 - Follows: 804 - Updated: 8/27 - Published: 7/10/2020 - Clark K./Kal-El/Superman, Miranda L.
The Scarlet Scarab by Fire Wolf 2132 reviews
Having just come home from college, Jaime hoped to live a good life that he could share with his family. But an unexpected gift has derailed his dreams, and given him a destiny that will alter the fate of the galaxy.
Crossover - DC Superheroes & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 1 - Words: 3,486 - Reviews: 5 - Favs: 28 - Follows: 38 - Published: 8/26 - [J. Reyes/B. Beetle, Tali'Zorah] Shepard
Where Ghosts and Spectres play by spart1339 reviews
Spectres are feared throughout the galaxy as the right hand of the Council. But, there is another force that is feared more than the Spectres, even by Spectre operatives. They are known as Ghosts, elite covert operatives who are humanity's unseen protectors. Ghost Team Wolf is called in to assist Shepard.
Crossover - Mass Effect & Ghost Recon series - Rated: M - English - Sci-Fi/Adventure - Chapters: 7 - Words: 36,637 - Reviews: 21 - Favs: 221 - Follows: 302 - Updated: 8/25 - Published: 5/29/2017 - J. Garson, OC
Mass Wars Episode II by Fantasymaker76 reviews
Five Years have past since the destruction of the Normandy and the death of Commander Shepard. Now a new order is rising in the unmapped regions of the galaxy which is leaving unease in both the Republic and the Citadel. Determined to find out what is going on, a pro-human organisation has made plans to find out what this mysterious group wants.
Crossover - Mass Effect & Star Wars - Rated: M - English - Sci-Fi/Adventure - Chapters: 5 - Words: 26,457 - Reviews: 9 - Favs: 22 - Follows: 28 - Updated: 8/25 - Published: 3/13
Dreams of Vengeance by Arch Magos Belacaruius Cronus reviews
Is it too much to ask for a millennia or two of sleep? For one twice dead child of the Dominus Nox, rest won't be coming easily any time soon... (rated M for gore)
Crossover - Warhammer & Mass Effect - Rated: M - English - Adventure - Chapters: 3 - Words: 3,294 - Reviews: 10 - Favs: 54 - Follows: 85 - Updated: 8/24 - Published: 9/20/2022 - OC, Chaos Space Marines, Shepard
Fashionable Tactics by Lighting wolf knight reviews
He didn't know what else was coming, only that this could have been decided now. Rated T for violence, death, and profanity.
Crossover - Mass Effect & RWBY - Rated: T - English - Romance/Adventure - Chapters: 4 - Words: 14,781 - Reviews: 2 - Favs: 7 - Follows: 8 - Updated: 8/23 - Published: 8/4/2022 - [OC, Coco A.] Primarch Adrien Victus
OTTOSMV: Anculus by Otto-Raeder
offshoot of OTTOS Multiverse
Crossover - RWBY & Mass Effect - Rated: M - English - Sci-Fi - Chapters: 1 - Words: 739 - Published: 8/22
The Galaxy's last shinobi by Kfbanime87 reviews
As for summary. His planet and people were gone. Destroyed by the reapers. But he survived. Now thousands of years in the future, Naruto must navigate a galaxy unfamiliar to him along with his ragtag crew of friends. All while he makes a name for himself and makes plans to destroy the reapers when they return
Crossover - Naruto & Mass Effect - Rated: M - English - Adventure/Humor - Chapters: 4 - Words: 36,907 - Reviews: 247 - Favs: 628 - Follows: 681 - Updated: 8/21 - Published: 3/27 - Naruto U., Shepard
Bellum Terranum by F35B reviews
In the year 2585 the Humans have mostly recovered from the effects of the Human-Covenant War, however unknown to them, there is a much larger Galaxy out there... one that doesn't take kindly to humanity and their... antics... However an old threat still lays out there, ready to strike. Pls Read & Review (Slight HFY)(AU)
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 4 - Words: 24,875 - Reviews: 65 - Favs: 270 - Follows: 405 - Updated: 8/21 - Published: 7/31
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: 41 - Words: 142,197 - Reviews: 55 - Favs: 266 - Follows: 282 - Updated: 8/20 - Published: 8/2/2019
Spectre with a Spartan Sister by ZeBear reviews
In 2574, after the formation of the United Sentient Species Federation, they find more intelegent life. Having infiltrated the Normandy Project, they save John Shepard from dying after the Collectors attack at the end of Mass Effect 1. Neglecting to tell his friends. Now with and entire Federation of Species behind him, instead of Cerberus, how will John deal with it all?
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 5 - Words: 6,717 - Reviews: 10 - Favs: 39 - Follows: 68 - Updated: 8/20 - Published: 7/28 - [Shepard, Tali'Zorah] Garrus V.
Force Effect: A Knights of the Old Republic & Mass Effect Crossover by DayDream Jedi reviews
Published for the 10th Anniversary of KOTOR, this tale mixes two of Bioware's biggest hits and the results could be... explosive. Shepard and her crew thought that The Crucible would save them and destroy the Reapers. They were wrong. New rules. New enemies. New war.
Crossover - Star Wars & Mass Effect - Rated: T - English - Adventure/Sci-Fi - Chapters: 6 - Words: 16,490 - Reviews: 9 - Favs: 38 - Follows: 65 - Updated: 8/19 - Published: 7/15/2013 - [Revan, Shepard] Bastila S., Tali'Zorah
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: 22 - Words: 333,584 - Reviews: 344 - Favs: 632 - Follows: 760 - Updated: 8/19 - Published: 12/28/2020 - OC, U. Wrex, Shepard, Councilor Tevos
The Traveler's Second Chance by Rossweisse reviews
The Traveler has a different response to the Darkness. A story where the Guardians never accept the Darkness. The Traveler gave them a second chance, what do they do with it? Destiny shows up in Mass Effect. OC's for Destiny MC and Ghosts, different take on Destiny Lore
Crossover - Mass Effect & Destiny - Rated: M - English - Adventure/Romance - Chapters: 5 - Words: 40,965 - Reviews: 12 - Favs: 48 - Follows: 72 - Updated: 8/16 - Published: 8/6
The Wayfarer by Umbral Choir reviews
In the twilight of the universe the Ihan-rii, a forgotten sect of protoss, face an uncertain future in a realm consumed by the hounds of the void and their dark master. Xiltar, the last member of the umbral choir will guide his people into a fate beyond the designs of the Xel'naga only to find that he traded one war of annihilation for another.
Crossover - StarCraft & Mass Effect - Rated: M - English - Adventure/Sci-Fi - Chapters: 51 - Words: 225,064 - Reviews: 52 - Favs: 126 - Follows: 151 - Updated: 8/14 - Published: 2/5
Mass Effect: The Gears of War by IX404 reviews
Marcus thought he was done fighting after the death of Queen Myrrah, and the activation of the Imulsion Countermeasure. When he goes to help Baird investigate an abandoned COG facility, he will soon discover that while he ended one fight, another one has just begun.
Crossover - Gears of War & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 40 - Words: 216,284 - Reviews: 330 - Favs: 321 - Follows: 339 - Updated: 8/14 - Published: 3/31/2022 - Marcus F., A. Cole, Garrus V., Shepard - Complete
Mortal Desperations by Solthrin reviews
Arcturus Magnus, Sagittarum of the Legio Custodes, has fought for years within the webway and the Impossible City. Upon taking a near-fatal wound, the Emperor Himself removes Arcturus from the front, sending him instead to bring forth reinforcements from the Mechanicum. When something goes wrong during the return, where does this Custodian find himself?
Crossover - Warhammer & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 5 - Words: 30,413 - Reviews: 68 - Favs: 352 - Follows: 527 - Updated: 8/12 - Published: 1/17 - Adeptus Mechanicus, Tali'Zorah, Shepard
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: 6 - Words: 24,961 - Reviews: 7 - Favs: 55 - Follows: 69 - Updated: 8/12 - Published: 1/3 - Liara T'Soni, Miranda L., Shepard
Cursed by Hookshot25 reviews
Clayton Carmine has only known hate and carnage for so many years. But once he survives the war he hoped to die in, things get strange. When people need help he isn’t one to shy away, and while helping Baird he gets sent to a place in dire need of a man like him. A man that can’t be claimed by death as easily as his kin.
Crossover - Gears of War & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 6 - Words: 56,822 - Reviews: 8 - Favs: 50 - Follows: 77 - Updated: 8/8 - Published: 4/10 - C. Carmine, Samantha B./Sam, Shepard, Tali'Zorah
Mass Effect 4 by Boobymitch reviews
Two years after the Reaper Invasion and the death of Commander Shepard, the Universe is living in peace until a new threat arrives not of this Universe! Now it is up to Dr. Liara T'Soni and a new hero to stop this threat known as the Infinite Empire.
Crossover - Mass Effect & Star Wars - Rated: T - English - Sci-Fi/Adventure - Chapters: 3 - Words: 9,620 - Reviews: 3 - Favs: 6 - Follows: 9 - Updated: 8/8 - Published: 4/2 - Liara T'Soni, OC, Garrus V., U. Wrex
Remnants by General Rage reviews
From Halo's ashes, a mismatched Alliance is born. UNSC soldiers now serve alongside both Batarian deserters and shifty Jackal Space Pirates. Now Shepard and Master Chief have to keep these strange bedfellows from killing one another before they can stop an emergent new threat to the galaxy. The Next Swashbuckling Chapter of the Wormhole Chronicles.
Crossover - Halo & Mass Effect - Rated: M - English - Adventure/Sci-Fi - Chapters: 39 - Words: 829,112 - Reviews: 809 - Favs: 473 - Follows: 539 - Updated: 8/7 - Published: 4/22/2016 - Master Chief/John-117, Cortana, Tali'Zorah, Shepard
The Sins of our Fathers by MarkerMagnum reviews
Unknown to the Citadel Council, the Human-Covenant war nears its vicious end. Miranda Keyes is seconds too slow. Delta Halo fires, leaving UNSC space as a lifeless snapshot in time. The Citadel must morn the loss of a civilization they never knew.
Crossover - Halo & Mass Effect - Rated: T - English - Drama/Sci-Fi - Chapters: 9 - Words: 84,696 - Reviews: 387 - Favs: 1,106 - Follows: 1,525 - Updated: 8/7 - Published: 2/11 - Cortana, Councilor Valern, Councilor Tevos, Councilor Sparatus
3.5K | « Prev Page 1 2 3 4 5 12 .. Last Next »