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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: 39 - Words: 131,382 - Reviews: 49 - Favs: 249 - Follows: 255 - Updated: 2/9 - Published: 8/2/2019
The USSC: A Timeline by SimplyLaggy reviews
A timeline of my USSC fanfic base, and a smol teaser to two upcoming fics
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 1 - Words: 1,615 - Reviews: 2 - Favs: 7 - Follows: 7 - Published: 2/8
Lost Son of Terra Phoenix by Ares007 reviews
For eons past, they enjoyed the harvest of their farms. Countless civilizations breathed life because they allowed it. Now, they will die because he demands it. Halo/Mass Effect but with heavy elements from Warhammer 40k. M-Shep/Miranda, OC/Liara. HFY
Crossover - Halo & Mass Effect - Rated: M - English - Adventure/Romance - Chapters: 16 - Words: 116,869 - Reviews: 45 - Favs: 149 - Follows: 192 - Updated: 2/8 - Published: 11/29/2021 - [SPARTAN-B312/Noble Six, Oriana L.]
HALO x ME: The Relay by SimplyLaggy reviews
The Intergalactic Relay. It exists, to change everything, by a bored observer.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 1 - Words: 4,456 - Reviews: 6 - Favs: 23 - Follows: 31 - Published: 2/6
Cyber Effect, Book 1: The Butcher of Torfan by Travez reviews
In the year 2013, Humanity had discovered Cybernetics and became obsessed with them. By the time of 2148, Mass Effect Physics are discovered, and is happily married with Human Cybernetics. In 2183, Vincent "V" Shepard is made the first Human/Cyberpunk Spectre. With his Sandy and Keren as his backups, what could possibly go wrong? (Goddammit Bubsy) V Shepard, TaliShep.
Crossover - Mass Effect & Cyberpunk 2077 - Rated: M - English - Romance/Adventure - Chapters: 7 - Words: 61,821 - Reviews: 45 - Favs: 145 - Follows: 174 - Updated: 2/6 - Published: 10/1/2022 - [V, Shepard, Tali'Zorah]
Snack Bytes: As There Is a Nightmare Effect by Wynnt'r reviews
For every dream, there is a hidden nightmare lurking. Emerging from the synthetic's past. There's no one whom can stop her,... no one! Sequel to "Is There a Dream Effect" story.
Crossover - Kamen Rider & Mass Effect - Rated: T - English - Adventure/Sci-Fi - Chapters: 1 - Words: 2,699 - Reviews: 1 - Favs: 1 - Follows: 1 - Published: 2/6 - Shepard - Complete
Un grand angle d'ombre by blackshamrock333 reviews
2560. L'humanité a survécu à la grande guerre contre les covenants et découvert l'espace concilien. Le Longest Day, prowler de l'UNSC en mission secrète, débarque en pleine attaque d'une colonie frontalière. Quelques jours plus tard, un médecin humain est découvert assassiné sur la Citadelle. Deux événements aléatoires, annonciateurs d'une course pour sauver la galaxie.
Crossover - Halo & Mass Effect - Rated: T - French - Sci-Fi/Adventure - Chapters: 2 - Words: 26,032 - Reviews: 2 - Favs: 6 - Follows: 8 - Updated: 2/6 - Published: 1/27
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: 13 - Words: 69,559 - Reviews: 95 - Favs: 441 - Follows: 514 - Updated: 2/6 - Published: 10/31/2022 - Shepard, V
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 its various first contacts.
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi - Chapters: 1 - Words: 7,663 - Reviews: 9 - Favs: 40 - Follows: 62 - Published: 2/6
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: 16 - Words: 85,802 - Reviews: 97 - Favs: 197 - Follows: 293 - Updated: 2/6 - Published: 2/21/2022
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: 28 - Words: 80,845 - Reviews: 133 - Favs: 190 - Follows: 226 - Updated: 2/5 - Published: 2/20/2021 - Alex W./M. Kodai, A. Avatar/J. Okita, Nihlus K.
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: 2 - Words: 8,117 - Reviews: 16 - Favs: 91 - Follows: 125 - Updated: 2/5 - Published: 1/14
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: 43 - Words: 758,929 - Reviews: 632 - Favs: 554 - Follows: 588 - Updated: 2/4 - Published: 9/13/2020 - Axel, Roxas, Xion, Shepard
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: 18 - Words: 67,342 - Reviews: 426 - Favs: 1,090 - Follows: 1,398 - Updated: 2/4 - Published: 9/8/2014
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: 2 - Words: 2,393 - Reviews: 6 - Favs: 42 - Follows: 58 - Updated: 2/4 - Published: 9/20/2022 - OC, Chaos Space Marines, Shepard
The Eternal Lord 40k - ME by HellFox83 reviews
A battle against the forces of Chaos strands a Necron lord in the galaxy of Mass Effect. With what's left of his dynasty under his banner, Veronakh Lord of Solvatakh intends to lead his people to glorious conquest. Can Commander Shepard stop the Collectors and curtail the ambitions of the Necrons?
Crossover - Warhammer & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 25 - Words: 288,320 - Reviews: 106 - Favs: 343 - Follows: 459 - Updated: 2/4 - Published: 6/13/2020 - Necrons, Shepard
Not in one's own plate by Sicht reviews
V was losing hope of returning to her life as she knew it. Time had become an unknown constant; had she been inside for a year? Maybe two? Either way, she felt anxious, worried. Her sacrifices couldn't have been all for naught. Right?
Crossover - Mass Effect & Cyberpunk 2077 - Rated: M - English - Mystery/Sci-Fi - Chapters: 4 - Words: 17,137 - Reviews: 10 - Favs: 51 - Follows: 89 - Updated: 2/3 - Published: 9/8/2022 - V, OC
The Mass of an Aura's Effect by vmoneywashere reviews
Team CFVY, one of the best second-year teams in Beacon, is fleeing from the Grimm when they unexpectedly find an alien artifact that transports them off Remnant. Meanwhile, Warlock Team, led by the son of John and Tali Shepard, is stuck guarding a dig site when 4 teens are dropped in their lap. One thing is for sure, all of them are in for a ride. (Rewrite of Aura Effect)
Crossover - Mass Effect & RWBY - Rated: T - English - Adventure/Sci-Fi - Chapters: 4 - Words: 13,430 - Reviews: 17 - Favs: 29 - Follows: 46 - Updated: 2/2 - Published: 11/11/2022 - [Tali'Zorah, Shepard] OC, Team CFVY
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: 2 - Words: 9,510 - Reviews: 32 - Favs: 130 - Follows: 201 - Updated: 2/1 - Published: 1/17 - Adeptus Mechanicus, Tali'Zorah, Shepard
The Prelude of War by Indigard reviews
A very different Mass Effect galaxy encounters a strange and relentless invader that is on constant hunger for Biomass but they never know it's just a glimpse of what coming for them. Featuring: alternative history for every species, a bigger and more populated galaxy, cunning Asari, militarized and germanized human empire.
Crossover - Warhammer & Mass Effect - Rated: T - English - Chapters: 7 - Words: 126,160 - Reviews: 26 - Favs: 70 - Follows: 71 - Updated: 1/31 - Published: 11/6/2021 - Imperial Guard, Tyranids, OC, Shepard
Miraculous Effect by Chloenetterules reviews
Marinette got future showing her something that will happen in the future and it also showed her something that was on Mars so she send a team to investigate it but she had to deal with a problem since Chat Noir stole almost every Miraculous and she had to use the Butterfly and the Peacock to get them back There will be sex, drugs, blood and possibly assaults Look in Prologue
Crossover - Mass Effect & Miraculous: Tales of Ladybug & Cat Noir - Rated: M - English - Romance/Adventure - Chapters: 5 - Words: 17,405 - Reviews: 1 - Favs: 6 - Follows: 5 - Updated: 1/31 - Published: 1/27 - [Chloé B./Antibug, Marinette D-C./Ladybug] Garrus V., Liara T'Soni
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: 2 - Words: 11,294 - Reviews: 12 - Favs: 102 - Follows: 121 - Updated: 1/31 - Published: 1/5
The Final Horizon by Touhoufanatic reviews
Taking a different route of technology, humanity ascends to the stars upon Sails of light with hearts full of hope and adventure. the second Age of Exploration has truly begun, and nothing, not aliens, ancient space squids, or genocidal robots will stop humanity, and perhaps its greatest legend of the seas, from finding the Horizon once more! Rated T for now.
Crossover - Pirates of the Caribbean & Mass Effect - Rated: T - English - Adventure - Chapters: 4 - Words: 12,169 - Reviews: 54 - Favs: 258 - Follows: 365 - Updated: 1/31 - Published: 7/31/2022 - Capt. Jack Sparrow
Bio Effekt by Zeiram1
Das ist noch ein Versuch eine Selbst Einfügung
Crossover - Mass Effect & X-overs - Rated: M - German - Chapters: 2 - Words: 3,604 - Updated: 1/31 - Published: 10/17/2018
We survive by seeing all outsiders as hostile by TimeTraveller-1900 reviews
After the ID4 invasion, the human race looks to the stars with dread. They know there are more enemies to fight, and they refuse to allow themselves to be battered down again. The Prothean ruins on Mars allow them a massive boon, but it opens up a test to see if their new philosophy to see all outsiders as hostile is true.
Crossover - Mass Effect & Independence Day - Rated: K+ - English - Sci-Fi - Chapters: 1 - Words: 1,985 - Reviews: 12 - Favs: 50 - Follows: 52 - Published: 1/31 - Complete
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