Mass Effect Crossovers
Filters
3.4K | « Prev Page 1 2 3 4 5 12 .. Last Next »

Ripples in the Stream by Vyrexuviel reviews
Eden Prime was a disaster, but from the ashes of a hero's pyre rises a new hope. A very different warrior rises to take the place of a fallen legend. Time to quit dreaming. Time to Awaken. ME Universe, Out-of-universe character with D&D roots; some Shadowrun influence. (Will update erratically, please be patient!) Co-Authored by MasterMind4892! Book One Complete!
Crossover - Mass Effect & Dungeons and Dragons - Rated: M - English - Adventure/Sci-Fi - Chapters: 35 - Words: 438,765 - Reviews: 47 - Favs: 213 - Follows: 289 - Updated: 1/17 - Published: 5/1/2015 - [Jack, OC] Liara T'Soni, Kasumi G.
A god among men by tdy4234 reviews
Harry has had a hell of a life, he has survived by playing the cards he is dealt. What happens when he hits his breaking point and starts using anything he can get his hands on to win? What happens when magic deals him a new hand? He pimp slaps Mass effect into submission taking shit from no one. Badass!Harry harem!Harry AU! dead/up for adoption
Crossover - Harry Potter & Mass Effect - Rated: T - English - Romance/Adventure - Chapters: 11 - Words: 18,541 - Reviews: 246 - Favs: 1,115 - Follows: 1,499 - Updated: 1/17 - Published: 1/16/2017 - Harry P., Liara T'Soni, Tali'Zorah, Aria T'Loak
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: 2 - Words: 12,717 - Reviews: 3 - Favs: 28 - Follows: 40 - Updated: 1/17 - Published: 1/3 - Liara T'Soni, Miranda L., Shepard
The third way - Codex by Konradoziom reviews
Here are descriptions of the ships, factions and technologies used in the stories from my crossorver - The Third Way. The chapters will be updated as the story progresses. You can propose your own ships and technologies that I can add to the story. I reserve that many ideas may be rejected.
Crossover - Starblazers & Mass Effect - Rated: K - English - Chapters: 5 - Words: 10,526 - Reviews: 1 - Favs: 22 - Follows: 11 - Updated: 1/17 - Published: 7/7/2021
Seven troubles - one response by Sicht reviews
As Earth continues to tirelessly expand with their revolutionary 'Mass Effect' space flight a Yearly Societal Rendezvous is called after new year's eve on the host planet of Trimidia. The only neutral territory agreed upon by corporations and governments alike. However, some might regard neutrality; needlessly restrictive.
Crossover - Mass Effect & Cyberpunk 2077 - Rated: M - English - Sci-Fi/Mystery - Chapters: 2 - Words: 5,993 - Reviews: 3 - Favs: 9 - Follows: 21 - Updated: 1/16 - Published: 11/3/2022 - D. Anderson, Admiral Hackett, Shepard
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: 1 - Words: 4,168 - Reviews: 9 - Favs: 62 - Follows: 78 - Published: 1/14
The True Way Of The Sith - Part Two by Writing Shop 12 reviews
Sequel to The True Way Of The Sith. The Mass Effect Relay has been activated and a whole new galaxy of opportunity comes with it. What will Lily Potter, the Crown Princess of the Sith Empire, do with this new chance for adventure? And more importantly, will her father let her go into the unknown on her own? Citadel space beware, the Sith have come. (Harry x Harem) (Lily x Shepard)
Crossover - Harry Potter & Mass Effect - Rated: M - English - Adventure/Romance - Chapters: 2 - Words: 13,589 - Reviews: 163 - Favs: 1,472 - Follows: 1,904 - Updated: 1/13 - Published: 1/8 - Harry P., Liara T'Soni, Tali'Zorah, Shepard
The third way by Konradoziom reviews
Mankind has finally united after a long time. To do this, it was necessary to discover the ruins of an ancient civilization and a wrecked spaceship. But the ship and the ruins have a completely different technology. Is it a gift from heaven that allows for enormous development in many directions, or is it a danger of their existence? Humanity will have to find out about it.
Crossover - Starblazers & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 27 - Words: 77,632 - Reviews: 130 - Favs: 184 - Follows: 222 - Updated: 1/13 - Published: 2/20/2021 - Alex W./M. Kodai, A. Avatar/J. Okita, Nihlus K.
Immortal Galaxies by Lighting wolf knight reviews
An escape from an overrun galaxy lands them in another galaxy? What does being the biggest fish in the water gain you in a world without heavy hitters? Rated T for violence, death, and profanity.
Crossover - Halo & Mass Effect - Rated: T - English - Romance/Adventure - Chapters: 3 - Words: 4,777 - Reviews: 10 - Favs: 89 - Follows: 150 - Updated: 1/13 - Published: 11/11/2021 - [OC, Vetra N.] T. Hood
Exciting Opportunities by Of Questionable Veracity reviews
In an unexpected and highly unlikely turn of events, a catastrophic warp breach from a crippled ship manages to fling a Rogue Trader - or rather, the youngest son of a Rogue Trader - through time and space to a universe quite unlike what anyone on-board in used to. They make the best of the situation.
Crossover - Warhammer & Mass Effect - Rated: K+ - English - Chapters: 36 - Words: 196,265 - Reviews: 491 - Favs: 666 - Follows: 921 - Updated: 1/12 - Published: 4/15/2019 - J. Garson
Wasteland Galaxy by Redentor reviews
Matriarch Lantaya is a brave explorer from the Golden Age of Asari space exploration, and she wants to go home. The Lone Wanderer is a messianic cyborg from a world scorched in nuclear fire, and he wants to save the wastelands. Courier Six is a tribal postman who usurped control of an entire city state. He wants to eat people. Among other things. (Also available on Spacebattles)
Crossover - Fallout & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 41 - Words: 308,060 - Reviews: 36 - Favs: 200 - Follows: 254 - Updated: 1/11 - Published: 1/5/2022 - Lone Wanderer, Courier, OC
A Second Chance by Creeperbreak reviews
After the golden throne fails, the emperor decides to pull one last card. Using the immeasurable amount of power he accumulated, he moves an 20th century era Earth into the galaxy of mass effect.
Crossover - Warhammer & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 2 - Words: 2,780 - Reviews: 28 - Favs: 84 - Follows: 144 - Published: 1/10 - The Emperor
Human Legacy by ShirouKuroEmiya reviews
Some fifty thousand years, there once was a galaxy-spanning civilisation belonging to a race called humanity. They earned many names such as Protector and Giver. Many later races would worship them as gods. Humanity fought a war with the life-destroying Reapers. Now, thousands of years later the younger races have stepped into the stars to find the ruins of humanity...
Crossover - Fate/stay night & Mass Effect - Rated: T - English - Chapters: 2 - Words: 4,159 - Reviews: 21 - Favs: 99 - Follows: 130 - Updated: 1/9 - Published: 12/5/2022 - Shepard
Just Another Day at the Office by Darthkvzn reviews
Spectre-turned-bounty hunter (and unwilling interdimensional traveler) Jane Shepard arrives at her base of operations on Knowhere to embark on a mission to this dimension's version of Earth - one that could help her find her way back to the universe she was ripped from... (F!Shepard, multicrossover, part of the Kryptonverse series!)
Crossover - Ben 10 & Mass Effect - Rated: T - English - Adventure - Chapters: 4 - Words: 13,007 - Reviews: 2 - Favs: 18 - Follows: 17 - Updated: 1/9 - Published: 6/25/2022 - EDI, Shepard
Stellar Effect Codex by Brandon Storm reviews
A Codex exploring the History and Lore of the Stellar Effect Universe
Crossover - Mass Effect & Stellaris - Rated: T - English - Sci-Fi - Chapters: 9 - Words: 19,850 - Reviews: 16 - Favs: 32 - Follows: 27 - Updated: 1/8 - Published: 8/7/2022
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: 25 - Words: 223,027 - Reviews: 18 - Favs: 52 - Follows: 69 - Updated: 1/7 - Published: 6/1/2020 - OC, P. Coulson, Harbinger, Shepard
United Earths Empire: The Beginning of a New Age by Destarien reviews
What if three Universes once separate come together. three different humanities with three different paths of technology merge into one galaxy. Citadel space will never be the same because the Schahl Empire and UNSC are here. Two Civilizations, one at war and one ready for war.
Crossover - Halo & Mass Effect - Rated: T - English - Fantasy/Sci-Fi - Chapters: 8 - Words: 21,362 - Reviews: 70 - Favs: 203 - Follows: 268 - Updated: 1/5 - Published: 5/29/2022 - J. Keyes, J. Cutter, SPARTAN-B312/Noble Six, Jerome-092
United Earths Empire Rewrite by Destarien reviews
What if three Universes once separate come together? three different humanities with three different paths of technology merge into one galaxy. Citadel space will never be the same because the Schahl Empire and UNSC are here. Two Civilizations, one at war and one ready for war.
Crossover - Halo & Mass Effect - Rated: M - English - Adventure/Fantasy - Chapters: 1 - Words: 8,225 - Reviews: 6 - Favs: 85 - Follows: 100 - Published: 1/5
NieR: Ghosts of a bygone Era by The meme lord of the east reviews
After the fall of the Tower, androids are finally united and ready to explore space in search of friendly species, what they found was a galactic community of aliens with deeply rooted hatred for AI. Will the galactic community make an exception for the Androids? or will they indulge in petty wars while another threat looms on the horizon? Citadel vs Reapers vs Humans.
Crossover - Mass Effect & Nier - Rated: T - English - Sci-Fi/Supernatural - Chapters: 3 - Words: 14,685 - Reviews: 18 - Favs: 84 - Follows: 126 - Updated: 1/5 - Published: 10/16/2022 - 2B, 9S, YoRHa Commander
My Mass Effect Acadamia by Astraea755
A crossover bringing all the characters you know and love from my hero acadamia and putting them into the roles of several mass effect characters. We follow Izuku Midoriya as he awakens again from yet another death at the hands of the reapers. This time he swears it will be different. This will be updated periodically, i write out the chapters after recording gameplay to use.
Crossover - My Hero Academia/僕のヒーローアカデミア & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 1 - Words: 3,156 - Favs: 2 - Follows: 6 - Published: 1/4 - Izuku M., Mina A., Ochako U., Tenya I.
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: 17 - Words: 71,194 - Reviews: 51 - Favs: 200 - Follows: 299 - Updated: 1/3 - Published: 6/14/2020 - Revan, Carth O., Garrus V., Shepard
Kerberos by timedraven117 reviews
Commissioned: The Green Flu struck earth like a meteor, in its clutches billions died, and a new world emerged. Now it is the year 2156 and that which has been dreaded by humanity ever since the truth of the Green Flu has come to pass. First Contact.
Crossover - Mass Effect & Left 4 Dead - Rated: M - English - Sci-Fi - Chapters: 6 - Words: 33,764 - Reviews: 18 - Favs: 120 - Follows: 181 - Updated: 1/3 - Published: 4/23/2021 - Illusive Man, Shepard
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: 19 - Words: 97,089 - Reviews: 118 - Favs: 316 - Follows: 391 - Updated: 1/2 - Published: 8/18/2020 - Amuro R., Char A., Tali'Zorah, Admiral Hackett
War of the Old Ones by Ian the Mechanic reviews
In forgotten ages past, two near eldritch forces vied for the very life essence of the Galaxy. Unknown to the young races, that war is still ongoing. how can the UNSC, the Citadel Council or the Covenant hope to stand against such forces, when they are still embroiled in their own petty squabbling? How could they hope to survive the War of the Old Ones?
Crossover - Mass Effect & Halo - Rated: M - English - Sci-Fi/Horror - Chapters: 15 - Words: 79,719 - Reviews: 93 - Favs: 182 - Follows: 272 - Updated: 1/2 - Published: 2/21/2022
Mass Effect Kills Halo by giblo126 reviews
I was frustrated and wanted to get something out.
Crossover - Halo & Mass Effect - Rated: K+ - English - Chapters: 1 - Words: 495 - Reviews: 23 - Favs: 1 - Follows: 2 - Published: 1/1
3.4K | « Prev Page 1 2 3 4 5 12 .. Last Next »