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The Paracausal Effect by Aquilarion reviews
When the Light fell, the Guardian fell with it. Banished into the Garden of the winnower and the gardener, the Guardian entered one of the millions of flowers left by their caretakers. A flower where peoples managed peace between each other, a flower where life could be found beyond the Last City, a flower that was about to ignite into a galactic war. [M for safety] [FemShep]
Crossover - Mass Effect & Destiny - Rated: M - English - Adventure/Sci-Fi - Chapters: 3 - Words: 16,622 - Reviews: 19 - Favs: 67 - Follows: 111 - Updated: 12/28/2021 - Published: 12/18/2021 - Liara T'Soni, Shepard, Ghost, Guardian
Reaper Invasion - The USS Emissary by ColtKit Prods. - Omniva Verse reviews
Based on "The Last Spartan" by "DinoJake". Takes place during ME2 & 300 years after TNG. The Federation has finally unlocked how to traverse the distance between galaxies. Data commands the Starship Carrier "Emissary" & the small fleet it holds. Maybe this wasn't the best time to reactive Lore. WARNING: Multi-Xover.
Crossover - StarTrek: Other & Mass Effect - Rated: T - English - Family/Adventure - Chapters: 8 - Words: 17,170 - Reviews: 6 - Favs: 33 - Follows: 54 - Updated: 12/27/2021 - Published: 4/16/2020
An Empire Reborn by Eipok reviews
"What Calus found at the black edge… when he brings it to light, there will be a reckoning unlike anything this galaxy has ever seen." —Valus Nohr
Crossover - Mass Effect & Destiny - Rated: T - English - Sci-Fi/Adventure - Chapters: 2 - Words: 1,516 - Reviews: 7 - Favs: 14 - Follows: 23 - Updated: 12/27/2021 - Published: 12/24/2021 - Liara T'Soni, Shepard, Calus
It Started At Shanxi by SpaceTurtleOX reviews
Fifty years after the end of the Human-Covenant War an ill-fated UNSC expedition opens Relay 314, revealing a civilization unprepared for their arrival, and relics from a terrible past.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 16 - Words: 81,162 - Reviews: 540 - Favs: 1,610 - Follows: 2,437 - Updated: 12/27/2021 - Published: 7/26/2019 - Master Chief/John-117, Cortana, Zaeed M., OC
Kyubi Effect by Ninja65 reviews
Naruto has lived an interesting life. This is the story of his life after his original one. Full of adventures and technology Naruto couldn't have even fathomed. Will he find himself in this new life he has to start. Will he find love even ... Heck yea he will. Naruto x Harem SlightAU Naruto
Crossover - Naruto & Mass Effect - Rated: M - English - Adventure/Romance - Chapters: 6 - Words: 25,752 - Reviews: 33 - Favs: 149 - Follows: 201 - Updated: 12/26/2021 - Published: 10/3/2021 - Naruto U., Hinata H., Liara T'Soni, Tali'Zorah
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: 1 - Words: 5,005 - Reviews: 26 - Favs: 162 - Follows: 245 - Published: 12/26/2021 - OC, Tali'Zorah, Admiral Hackett, Rael'Zorah
An Old Machine's New Home by Edgeoftoday reviews
A Reaper is launched from it's home galaxy during one of their many cycles, and spends countless years floating through the empty void of space. It's unintended destination results in the nearly destroyed machine unknowingly put in the middle of a galactic war between a coalition of religeous zealots and an ambitious race expanding over the stars. Picks up at the start of Halo: CE.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 6 - Words: 29,509 - Reviews: 70 - Favs: 238 - Follows: 339 - Updated: 12/25/2021 - Published: 8/22/2020 - Master Chief/John-117, Arbiter, J. Keyes, Cortana
Alliance by Kurogane7 reviews
A young new world has been discovered and its people have been subjected to a hostile first contact. How will the Galaxy change with the denizens of the planet Themis making waves with their home-grown technology and way of life? Re-forged and reposted.
Crossover - Mass Effect & Monster Hunter - Rated: M - English - Chapters: 3 - Words: 14,835 - Reviews: 35 - Favs: 187 - Follows: 240 - Updated: 12/25/2021 - Published: 2/27/2021
Nehekhara effect by 6-4 pilot reviews
The Tomb Kings are victorious. The world is theirs and Chaos is banished from their world. Now they turn to the stars to claim everything in the name of the Imperisable.
Crossover - Warhammer & Mass Effect - Rated: M - English - Sci-Fi - Chapters: 11 - Words: 37,497 - Reviews: 47 - Favs: 106 - Follows: 157 - Updated: 12/24/2021 - Published: 5/29/2021 - Tomb Kings, Warriors of Chaos
Maelstrom Effect Book 2: Shadows of Crimson by godospartan the Kitsune reviews
After Soverign's defeat, the sibling Commanders left to clean up the mess it left behind. But one of them was struck down by an unknown force. The next 2 years they go in search of the ones responsible, unknowing that a secret group is bringing their sibling back to life to fight the Reapers again. How will they react when they meet again? NaruxTali, Shakarian, Mature content later
Crossover - Naruto & Mass Effect - Rated: M - English - Sci-Fi/Hurt/Comfort - Chapters: 8 - Words: 99,856 - Reviews: 55 - Favs: 270 - Follows: 311 - Updated: 12/24/2021 - Published: 12/25/2019 - Naruto U., J. Garson, Garrus V., Tali'Zorah
Just Built Different by Pokeya reviews
Max Barrett, the child prodigy, is the single smartest man that humanity has ever or will ever produce. Regarded as both the greatest mind and as a naturally born supersoldier Max is guaranteed a life of luxury. Unfortunately, a single good deed has landed him in an unusual situation: he finds himself in a Halo/Mass Effect crossover universe.
Crossover - Halo & Mass Effect - Rated: M - English - Humor/Sci-Fi - Chapters: 6 - Words: 43,727 - Reviews: 66 - Favs: 182 - Follows: 230 - Updated: 12/24/2021 - Published: 12/21/2020
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: 12 - Words: 50,624 - Reviews: 32 - Favs: 136 - Follows: 237 - Updated: 12/24/2021 - Published: 6/14/2020 - Revan, Carth O., Garrus V., Shepard
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: 1 - Words: 2,332 - Reviews: 1 - Favs: 1 - Published: 12/24/2021 - Complete
An Empire Reborn CANCELLED by Eipok reviews
"What Calus found at the black edge… when he brings it to light, there will be a reckoning unlike anything this galaxy has ever seen." —Valus Nohr
Crossover - Mass Effect & Destiny - Rated: T - English - Adventure - Chapters: 9 - Words: 7,506 - Reviews: 28 - Favs: 49 - Follows: 68 - Updated: 12/24/2021 - Published: 12/12/2018 - Calus
A New Future by eMarkus reviews
A discovery was made earlier than it should have been, and it was done by two people that had no business being there.
Crossover - Harry Potter & Mass Effect - Rated: M - English - Sci-Fi/Fantasy - Chapters: 9 - Words: 34,422 - Reviews: 121 - Favs: 619 - Follows: 1,018 - Updated: 12/23/2021 - Published: 5/2/2021 - [Harry P., Hermione G.]
The Mission Stays the Same by Broken Trident reviews
A joke of Chaos daemon sent two unlikely allies - an Eldar Farseer and an Imperial Storm trooper, through the Warp and into another Universe. In this place, everything is alien to them. Except for one thing - war. War is something they know very well. (Story adopted by Regina Dea. New author starts from Chapter 21)
Crossover - Warhammer & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 32 - Words: 363,239 - Reviews: 2603 - Favs: 4,657 - Follows: 5,132 - Updated: 12/23/2021 - Published: 10/4/2011 - Eldar, Imperial Guard, Shepard
Lost and found by close enough story reviews
"Just because you can, doesn't mean you should" The salarians never knew when to stop in the name of science. Not even at creating life, extinct long ago. When a test subject escapes to the city of Omega to find her way, she makes an unusual alliance with the vigilante Archangel.
Crossover - Mass Effect & Dragon Age - Rated: T - English - Romance/Adventure - Chapters: 8 - Words: 49,192 - Reviews: 20 - Favs: 39 - Follows: 70 - Updated: 12/21/2021 - Published: 7/9/2018
Mass Avengers Effect by JungleFurious reviews
It's been thirty years since Thanos, since the endgame battle between his forces and the Avengers. Now the majority of the Avengers have retired, but the mantles have been filled by their children, now full-grown adults. When a portal sends a few of the Avengers to a new universe, things are going to get hectic. The world of Mass Effect will never be the same.
Crossover - Mass Effect & Avengers - Rated: M - English - Sci-Fi/Adventure - Chapters: 7 - Words: 51,593 - Reviews: 16 - Favs: 71 - Follows: 100 - Updated: 12/21/2021 - Published: 6/19/2021 - [Shepard, Liara T'Soni] [OC, Tali'Zorah]
A Halo Effect Challenge by FallenDispair reviews
For a writer looking for a Halo/Mass Effect crossover idea. Free range use of what's inside. Details and new combined timeline of the two universes.
Crossover - Halo & Mass Effect - Rated: T - English - Chapters: 1 - Words: 11,833 - Reviews: 4 - Favs: 15 - Follows: 15 - Published: 12/20/2021
Saga of the Bridgers-Year 4 by Ganel750 reviews
After escaping near destruction on Atollon, the Rebellion is in dire strait, but hope is not yet lost. Following her promotion to Grand Marshall of the Rebellion, Jaral is set on beginning a massive guerrilla campaign across the Outer Rim. While Ezra keeps focusing on his Jedi training, the siblings will have to start a race against time to save their home-planet of Lothal.
Crossover - Mass Effect & Star Wars Rebels - Rated: M - English - Sci-Fi/Romance - Chapters: 37 - Words: 191,366 - Reviews: 5 - Favs: 17 - Follows: 21 - Updated: 12/19/2021 - Published: 9/13/2021 - [Ezra B., Sabine W.] OC, Grand Admiral Thrawn - Complete
El salto cero a una galaxia muy muy lejana by Kixtia
Algunos escucharon las advertencias de Shepard, pero el enemigo ataco muy pronto. Así que como ultimo recurso la estación salto cero usa tecnología experimental y es transportada a las regiones inexploradas de una galaxia muy muy lejana. Soy fan de legends pero concuerdo con Templin Insitute y el canon actual esta muy desaprovechado. Derechos a quien corresponda
Crossover - Star Wars & Mass Effect - Rated: T - Spanish - Adventure/Sci-Fi - Chapters: 5 - Words: 5,634 - Favs: 2 - Follows: 3 - Updated: 12/18/2021 - Published: 11/5/2021 - OC, OC
Inheritor Effect by Panther-Girl0251 reviews
The family and friends would have been know that Raine would be dead or she could be alive somewhere in the galaxy. They may have hope that Raine will eventually come back home to her family and friends. Wherever she is... or whenever she is found. Things are going to be different in the future she might discover something new... in century later.
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi - Chapters: 3 - Words: 5,313 - Reviews: 5 - Favs: 7 - Follows: 11 - Published: 12/16/2021 - [Shepard, Garrus V.] [SPARTAN-B312/Noble Six, OC]
The Truth About What It Means To Be Alive by FreedomOfThinking reviews
He's the last of his kind, and he's way out of his time. Waking up to a universe under the control of a despotic Artificial Intelligence was the last thing he expected. But the good news for him is that our favorite red-haired commander is all-inclusive and totally supportive of anyone, human or alien. Even if he's kinda responsible for the whole Reaper thing... whoops.
Crossover - Halo & Mass Effect - Rated: T - English - Humor/Adventure - Chapters: 5 - Words: 40,276 - Reviews: 50 - Favs: 216 - Follows: 312 - Updated: 12/16/2021 - Published: 4/10/2019 - Librarian, Didact, OC, Shepard
The Long, Long Walk by This Is Sarcasm reviews
Crow is stuck, but it's not all bad news; he's been offered shelter on the Normandy, and Spider can't hurt them here. Shepard now has an unkillable paracausal warrior, and his 'not-an-AI', Glint, is a complete cinnamon roll, but it's not all good news; he's half-starved, in culture shock, and has a bad case of trust issues. He might need work, sure, but who on this ship doesn't?
Crossover - Mass Effect & Destiny - Rated: T - English - Sci-Fi/Angst - Chapters: 10 - Words: 28,299 - Reviews: 54 - Favs: 149 - Follows: 223 - Updated: 12/15/2021 - Published: 9/15/2021 - Joker, Shepard, Dr. Chakwas, Crow
The Dream Effect by DarkPhoenixLady reviews
This is a crossover between the Deep Dream series and mass effect. Also published on ao3 and sv. As always, there is the glossary and ecology on ao3 if any terms confuse you. 200 years after the sleeper wars humanity makes first contact with non-magical aliens. Jane Sheppard takes the lead once more, though this time her society is vastly different from before.
Crossover - Harry Potter & Mass Effect - Rated: M - English - Sci-Fi/Fantasy - Chapters: 12 - Words: 83,655 - Reviews: 2 - Favs: 35 - Follows: 42 - Updated: 12/15/2021 - Published: 11/26/2021 - Tali'Zorah, Shepard
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