Mass Effect Crossovers
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The End has begun by balckwatch1 reviews
An empire torn out its galaxy stands ready to burn the stars once more, in the emperor's name.
Crossover - Mass Effect & Stellaris - Rated: M - English - Sci-Fi - Chapters: 14 - Words: 61,767 - Reviews: 44 - Favs: 85 - Follows: 115 - Updated: 7h - Published: 12/8/2019 - Tali'Zorah, Admiral Hackett, Shepard, OC
halo Mass effect extinction by harambe117 reviews
At the end of halo 4 the master chief is fighting on the forerunner artifact the composer. with no time to spare the master chief has to destroy the composer and kill the didact how will he survive the blast radius and save earth what new fights await for him ?
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi/Fantasy - Chapters: 1 - Words: 4,514 - Reviews: 2 - Favs: 2 - Follows: 2 - Published: 9h
The Fourth Galactic Power: Milky Way on Fire by The Real BONK'er reviews
(Sequel to the Fourth Galactic Power) A year after the destruction of the Collector Base the Reapers arrive at the Milky Way. All races are trying to survive the pressure from their synthetic foes. Carvins, who joined the Council races just a year ago are now facing extinction once again. But what will it take for the Reapers to defeat a race that doesn't use the Mass Relays?
Crossover - Mass Effect & Spore - Rated: T - English - Adventure/Sci-Fi - Chapters: 18 - Words: 154,355 - Reviews: 13 - Favs: 24 - Follows: 31 - Updated: 17h - Published: 2/17/2018 - [Shepard, Liara T'Soni] Garrus V., OC
A FAMILY AGAINST THE GALAXY by Captain Saint 1st reviews
Cyrus Saint plucks a family's souls from near death, gives them a class card each and a Star Wars ship to command then kicks them into the Mass Effect universe no fs given, but they end up in Council space and are pursued, their only hope is reaching the untouched Mass Relay 314. Humanity will need them dearly, as will the rest of the Galaxy in the future.[Arthurian legend themeAU]
Crossover - Fate/stay night & Mass Effect - Rated: M - English - Adventure/Sci-Fi - Chapters: 1 - Words: 10,832 - Reviews: 3 - Favs: 16 - Follows: 19 - Published: 4/10
The Catachan Effect by Vindicare40k reviews
Death is common as apart of life growing up on the most violent Death World in the Imperium. A home world that makes even the most dangerous of missions seem like a lovely vacation. It is not common to be cast through the Warp and into a completely unknown reality. Little can ever truly bother a Catachan though, and thankfully this reality still has plenty that needs killing.
Crossover - Warhammer & Mass Effect - Rated: M - English - Sci-Fi/Drama - Chapters: 3 - Words: 16,237 - Reviews: 33 - Favs: 95 - Follows: 138 - Updated: 4/10 - Published: 4/4
Galaxy Effect by aaronluis.dc29 reviews
The Quarians was discovered by another galactic government they never seen before. This Discovery will changes the galaxy as they know it. How will the Citadel react when they meet the Republic. I don't own some parts of this story which belongs to Fantasymaker76 Contains:Halo,Half-life,Gundam,Destiny and Oddworld materials
Crossover - Star Wars & Mass Effect - Rated: T - English - Sci-Fi/Fantasy - Chapters: 6 - Words: 22,339 - Reviews: 22 - Favs: 107 - Follows: 149 - Updated: 4/10 - Published: 2/23
Wrath and Wisdom of the Exiled King by Thetrollingbrother reviews
Lying dormant in space are ancient beings older than the races of the Citadel. The Shanxi system will be the stage for First Contact between 3 races. (Cover image will be taken down if there are problems. Its not mine)
Crossover - Warhammer & Mass Effect - Rated: M - English - Sci-Fi - Chapters: 5 - Words: 21,087 - Reviews: 55 - Favs: 123 - Follows: 165 - Updated: 4/9 - Published: 3/6 - Necrons
The Children of Humanity by Dairene reviews
After the end of the 14th Machine War, the survivors now look to expand to the stars... and a not-too-welcoming galaxy (This is obviously set anachronistically. Although first contact with any Council races will be in 11,983, in the form of pirates in the Attican Traverse, the galaxy will be roughly based on the Citadel Council in the 2100s...roughly)
Crossover - Mass Effect & Nier - Rated: T - English - Sci-Fi/Adventure - Chapters: 32 - Words: 76,808 - Reviews: 78 - Favs: 160 - Follows: 251 - Updated: 4/9 - Published: 9/17/2019
Cold Machines by BattleUnit3 reviews
They studied Organics. All they ever saw was fear from Sentient Synthetics. Geth had no place in their world. But by chance they discovered a species on the brink of extinction. They worked along side their creations as equals. They didn't care who or what you are. They only cared about their City.
Crossover - Mass Effect & Frostpunk - Rated: T - English - Adventure - Chapters: 14 - Words: 30,518 - Reviews: 385 - Favs: 805 - Follows: 1,131 - Updated: 4/9 - Published: 5/17/2018
Gate: Alliance Retaliation by palik reviews
8 Years after the end of the Reaper war a magical gate opens in Vancouver on earth. The Alliance recovering from a galactic war is thrown into yet another war(this time without andromeda) Cover is made by Bioware for the Mass effect 3 Multiplayer Earth DLC. (Post ME3)
Crossover - Mass Effect & Gate - Jietai Kare no Chi nite, Kaku Tatakeri - Rated: M - English - Fantasy/Sci-Fi - Chapters: 9 - Words: 21,054 - Reviews: 19 - Favs: 80 - Follows: 96 - Updated: 4/8 - Published: 1/16 - Ashley W., James V.
Ex machina by mr Argument
Он - вампир, являющий собой лучшее, что есть в человеке. Она - герой войны, волей случая заброшенная в 21 век. У обоих есть тайны. У обоих есть трагедии. Смогут ли они найти ключ к душе друг друга?
Crossover - Twilight & Mass Effect - Rated: K - Russian - Hurt/Comfort/Angst - Chapters: 5 - Words: 10,025 - Updated: 4/8 - Published: 3/23 - Carlisle, Esme, Legion, Shepard
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: 15 - Words: 91,272 - Reviews: 411 - Favs: 639 - Follows: 846 - Updated: 4/8 - Published: 5/29/2019
Mental Omega: Paradox Effect by Paltry Li0n reviews
The winds have changed. Foehn emerges as the next world power. The USA descends into anarchy. The Soviet Union spreads the workers revolution to the cosmos. The Citadel Council makes first contact with a drastically different humanity. Rated T for violence and suggestive themes. Multicrossover with reference or aspects from other series.
Crossover - Command & Conquer & Mass Effect - Rated: T - English - Sci-Fi/Fantasy - Chapters: 6 - Words: 49,014 - Reviews: 34 - Favs: 83 - Follows: 106 - Updated: 4/8 - Published: 5/3/2019
Angel's Lament by BrotherAntrosOfTheBloodAngels reviews
A Strike Force of Blood Angels and Lamenters are thrust into a completely new reality, along with a fleet of Imperial Refugees from a Knight World, But how? And Why? If destiny is to be believed the Emperor has sent his Favored Son's Children here with a task. They are to protect an infant Mankind from an encroaching Darkness, but when their beliefs are pushed will they weather on?
Crossover - Warhammer & Mass Effect - Rated: T - English - Fantasy/Sci-Fi - Chapters: 11 - Words: 88,894 - Reviews: 104 - Favs: 188 - Follows: 259 - Updated: 4/8 - Published: 11/18/2019 - Imperial Guard, Space Marines, Shepard
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: 9 - Words: 38,088 - Reviews: 24 - Favs: 85 - Follows: 96 - Updated: 4/8 - Published: 8/2/2019
Paradox Unleashed by ParadoxUnleashed42 reviews
While Rose Tyler was dimension hopping, to stop the Reality Bomb, she collides with a message & ends up with the 1st Doctor of the Prime Universe, soon after he left Gallifrey. Now Rose, This AU Doctor, & Susan must save River in the Library. This has far reaching consequences to the future. The Time War comes early, on a field of a shattered universe. The Reapers take advantage.
Crossover - Doctor Who & Mass Effect - Rated: T - English - Adventure/Sci-Fi - Chapters: 4 - Words: 15,825 - Reviews: 1 - Favs: 4 - Follows: 7 - Updated: 4/7 - Published: 3/22 - 1st Doctor, River Song/Melody P. III, Rose T., Susan F.
Commander of the Stars by greyninja99 reviews
The war is over and Naruto finally has freedom to do what he wants with this newly attained peace. And what he wants is the explore the stars on the ship that he'd discovered years ago. But the universe is a scary, unforgiving place, and that's just the way the new crew of the Normandy like it!
Crossover - Naruto & Mass Effect - Rated: M - English - Chapters: 6 - Words: 16,834 - Reviews: 26 - Favs: 109 - Follows: 139 - Updated: 4/7 - Published: 3/11 - Naruto U.
HFY - Humanities Conquest by The Normie reviews
The Quarians, sick of begging The Council for aid, set out, and with it a new chapter of their known galaxy unfolds.
Crossover - Mass Effect & Stellaris - Rated: M - English - Adventure/Sci-Fi - Chapters: 3 - Words: 20,587 - Reviews: 23 - Favs: 69 - Follows: 98 - Updated: 4/6 - Published: 3/29
Legion of the Damned by LunchablesPizza reviews
Commander Jane Shepard sacrificed her life on a gamble. After being absorbed by the light of the Crucible, she wakes up in a strange forest, greeted by a familiar face. Now trapped in the afterlife with warriors from across the dimensions, Shepard must face a new foe that threatens not only her galaxy, but the entire multiverse.
Crossover - X-overs & Mass Effect - Rated: T - English - Adventure/Sci-Fi - Chapters: 20 - Words: 90,533 - Reviews: 44 - Favs: 59 - Follows: 87 - Updated: 4/6 - Published: 8/17/2019
Ratchet and Shepard: First Contact by limadude120 reviews
Transported to the Milky Way as the Zoni abduct Clank, Ratchet finds himself traversing a new galaxy with an alien called Commander Shepard and his crew. As Ratchet continues his search for Clank, he finds himself drawn to Shepard's mission. His goal? Hunt down a rogue Spectre agent to prevent the total annihilation of the galaxy. Why does all this sound familiar? Right after ToD.
Crossover - Ratchet and Clank & Mass Effect - Rated: T - English - Adventure/Sci-Fi - Chapters: 27 - Words: 104,351 - Reviews: 310 - Favs: 334 - Follows: 375 - Updated: 4/6 - Published: 8/10/2013 - Ratchet, Shepard
United we Stand by Mayto reviews
At the height of the Human Covenant war, another galactic power intervenes to aid the embattled humans. Standing side by side with the Turians, the UNSC prepares for a new phase of the Human Covenant war.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 67 - Words: 208,722 - Reviews: 861 - Favs: 761 - Follows: 1,008 - Updated: 4/6 - Published: 3/26/2019
Mass Effect Crosover by jetslinger333 reviews
This fiction has different type of mass effect crossover ideas and other types as well, read and review if you like the series I wrote it. Next Update The Failed Swordsman Who Became the Strongest After Spamming the 100 Million Years Button.
Crossover - Mass Effect & Kamen Rider - Rated: T - English - Sci-Fi/Adventure - Chapters: 22 - Words: 70,425 - Reviews: 23 - Favs: 29 - Follows: 25 - Updated: 4/6 - Published: 5/18/2014
Heroes UNITE! by So-Pro Warrior reviews
Commander Shepard and his team have gathered together the races of their Galaxy in an effort to defeat the Reapers. But is it enough? When the team comes across a strange woman they find out that if they are to truly defeat the Reapers once and for all. They will need all the help they can get. But not from their Universe. Multiverse Crossover! Chapters 6-22 Being Rewritten!
Crossover - Mass Effect & Halo - Rated: T - English - Adventure/Sci-Fi - Chapters: 42 - Words: 1,142,220 - Reviews: 721 - Favs: 285 - Follows: 288 - Updated: 4/6 - Published: 6/21/2013 - Master Chief/John-117, Shepard
Hyper Dimension Neptunia Mass Effect by Lix231 reviews
The CPUs of Gamindustrie ascendet up to the Stars to forther there Reach and Colonize new Worlds for there Poeple and Discover new Civilisations. 30 Years after they reached for the Stars they now have Maney Colonies in the World. But the so long lasting Peace is interruptet when a Unown Alien Fleet Attacks the Lowee Colonie Shanxi and brings the CPU in a much larger Galaxie.
Crossover - Mass Effect & Hyperdimension Neptunia - Rated: M - English - Sci-Fi - Chapters: 12 - Words: 25,401 - Reviews: 13 - Favs: 30 - Follows: 44 - Updated: 4/6 - Published: 1/24 - [Underling/Linda, Nepgear/Purple Sister] Shepard
Mass Effect: The War for Freedom by KevinYu reviews
After years of conflict between the nations of Earth, the world finally united under the banner of the COG. Humanity set up for the stars, building magnificent cities and creating technological wonders, but what will happen when Humanity meets an alien species from beyond their home system, what will happen? Timeline and Chapter 1 slightly rewritten
Crossover - Mass Effect & Gears of War - Rated: M - English - Sci-Fi/Adventure - Chapters: 10 - Words: 62,424 - Reviews: 89 - Favs: 238 - Follows: 306 - Updated: 4/6 - Published: 9/20/2019
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