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The War To Come by Betapike reviews
Inspired by LordLucan's Shape Of The Nightmare To Come. An angel came to uplift humanity into a golden age. But when the enemy came and unleashed the New Devourer in the galaxy and seeded the warp with the Nex, the gift meant to bring peace and prosperity everlasting became needed simply to ensure survival in the war to come.
Crossover - Warhammer & Mass Effect - Rated: T - English - Fantasy/Sci-Fi - Chapters: 1 - Words: 1,337 - Reviews: 11 - Favs: 12 - Follows: 12 - Published: 1/18
The Boundary Effect - The Path of a Magician by xyzdreadnought reviews
Isika Valao is a young Asari child, with nothing to her name and a lot to prove. Enamoured by magic and the Alliance, she sets out to become what should Be impossible for the naturally biotic Asari, a magician. With the help of a certain ordinary Magician, she just might make that dream a reality. (A spin off Story to the Boundary Effect, written with Permission)
Crossover - Mass Effect & Touhou Project - Rated: T - English - Sci-Fi/Fantasy - Chapters: 9 - Words: 31,414 - Reviews: 34 - Favs: 118 - Follows: 163 - Updated: 1/18 - Published: 12/17/2018 - OC, Alice M., Marisa K.
Cascade Effect by BRUNNELL PRODUCTIONS reviews
Previous named "Generation Effect" by GOBIUS. Long ago in the Prothean Cycle, the Reapers found themselves fighting their own creations called, the Neuroi. In the end, the Reapers banish the last Neuroi in what was supposed to be a supernova. But instead, the Neuroi would soon come back to haunt the galaxy. It's through this cascade of events that would change history forever...
Crossover - Mass Effect & Strike Witches - Rated: T - English - Adventure/Sci-Fi - Chapters: 2 - Words: 11,751 - Reviews: 4 - Favs: 34 - Follows: 52 - Updated: 1/17 - Published: 9/30/2019 - OC
The One That Bears The Message by Disinherited reviews
In a laboratory, a broken hero is remade and awoken. In a world not his own, a courier is found at the heart of the Unseen Poison's billows, bearing a message. In the deep, dark space, old machines see, and listen. Art by Blank Sector.
Crossover - Fallout & Mass Effect - Rated: M - English - Adventure/Sci-Fi - Chapters: 8 - Words: 64,896 - Reviews: 104 - Favs: 283 - Follows: 418 - Updated: 1/17 - Published: 9/3/2019 - Courier, J. Garson
Happy Trails by AnotherTakenUsername reviews
The Great Journey goes a little differently than Jason Bright had anticipated. Shenanigans ensue.
Crossover - Fallout & Mass Effect - Rated: K - English - Chapters: 5 - Words: 7,347 - Reviews: 17 - Favs: 43 - Follows: 63 - Updated: 1/16 - Published: 11/4/2019 - Courier, Jacob T., OC
Bite Of Humanity Reimagined by Bigpizza reviews
[Reuploaded due to not showing underneaht titanfall crossovers] The IMC investigates jump anomalies over an old IMC research world. First contact has been made. Bonds will be made and the Citadel must do everything in their power to not suffer from Humanity's bite [Humanity Fuck Yeah! Co writer is still needed, PM me if interested.]
Crossover - Mass Effect & Titanfall - Rated: M - English - Sci-Fi - Chapters: 5 - Words: 12,551 - Reviews: 48 - Favs: 259 - Follows: 392 - Updated: 1/16 - Published: 5/14/2019 - Tali'Zorah, OC
Harry Potter, Mass effect crossover chalenge by Noctus Of The Thousand Blades reviews
see inside for details
Crossover - Harry Potter & Mass Effect - Rated: M - English - Adventure/Romance - Chapters: 1 - Words: 277 - Reviews: 1 - Follows: 1 - Published: 1/16
Mass Effect: Titanfall Rise of the United Species Alliance Story 1: by StarBorn Michael reviews
In the year 2257, humanity thought they were alone in the Galaxy. Until the IMC open the way forward. Join us as we see Humanity First Contact with the other Species of the Galaxy and see the Rise of a Government the likes the Galaxy has never seen before and the return of old Darkness and new factions alike to come. In RISE of the United Species Alliance Story 1 First Contact War.
Crossover - Mass Effect & Titanfall - Rated: T - English - Adventure/Sci-Fi - Chapters: 3 - Words: 11,272 - Reviews: 26 - Favs: 148 - Follows: 236 - Updated: 1/15 - Published: 1/30/2017 - Admiral Hackett, Hannah S., OC, Sarah B.
Fire, Grimm, and a Red Rose by scarstoryintheday
In a Timeline where Commander Shepard died in Mass Effect 2, things can always become more and more crazy. These next days will be no exception, as Scott Ryder, or as he is better known as Pathfinder, receives exciting news of a brand new world untouched by anyone associated with the Andromeda Initiative. One that is hopefully friendly.
Crossover - Mass Effect & RWBY - Rated: M - English - Drama/Sci-Fi - Chapters: 1 - Words: 1,142 - Favs: 6 - Follows: 10 - Published: 1/15 - Scott R., Sara Ryder, Ruby R., Team JNPR
Gate: Thus the Alliance faught there by palik reviews
With the Firing of the Crucible SSV Kilimanjaro is thrown into another world where they find the Japanese Military and Fantasy creatures while they try to make their way back to their own World and timeline(abandoned)
Crossover - Mass Effect & Gate - Jietai Kare no Chi nite, Kaku Tatakeri - Rated: M - English - Sci-Fi/Fantasy - Chapters: 7 - Words: 14,133 - Reviews: 24 - Favs: 27 - Follows: 39 - Updated: 1/14 - Published: 12/26/2019 - Admiral Hackett, Itami, Rory, OC
Mass Divergence by hierosian reviews
It was unexpected, to say the least. The Citadel Council, the MSY, Governance - they all faced a new, confusing world. And, for those closest to the expanding shockwave, a very different life... [Crossover of Mass Effect, To the Stars, and Solemnis]
Crossover - Mass Effect & Puella Magi Madoka Magica/魔法少女まどか★マギカ - Rated: T - English - Sci-Fi/Fantasy - Chapters: 8 - Words: 127,633 - Reviews: 90 - Favs: 277 - Follows: 353 - Updated: 1/11 - Published: 11/20/2016
Hunter Effect by Chronos0305 reviews
Lore for a crossover between Mass Effect and Monster Hunter
Crossover - Mass Effect & Monster Hunter - Rated: T - English - Sci-Fi/Fantasy - Chapters: 2 - Words: 4,307 - Reviews: 9 - Favs: 30 - Follows: 25 - Updated: 1/11 - Published: 7/14/2019 - Complete
Steel, Fire, Honor and Ruin by Worth a Shot reviews
Warhammer Fantasy and Mass Effect crossover. Shepard's infamous luck holds and she survives the impossible for a second time. Now on a strange new world, inhabited by even stranger beings, she fights to survive and find a way back home. Be sure to read the author's note at the end for further information on this story.
Crossover - Warhammer & Mass Effect - Rated: M - English - Adventure - Chapters: 25 - Words: 288,245 - Reviews: 139 - Favs: 209 - Follows: 255 - Updated: 1/10 - Published: 1/20/2015
Not actually about Superman by VioletUnicorn666 reviews
A powerful OC superhero who is best friend of Superman is sent to stop a world-ending threat of Thanos on the castle of Camelot. Shepard may or not actually show up. ALSO, CHILDREN DIE IN THIS! DON'T READ IF THAT'S NOT SOMETHING YOU ENJOY!
Crossover - Superman & Mass Effect - Rated: M - English - Parody/Fantasy - Chapters: 2 - Words: 6,639 - Reviews: 1 - Follows: 1 - Published: 1/10
The Great Anomaly by Dumbnoobe reviews
The Alliance finds out about the magical world as a result of the first contact war. Shepard is an earthborn witch. Rated M for some instances of strong language, graphic violence, death and gore.
Crossover - Harry Potter & Mass Effect - Rated: M - English - Sci-Fi/Supernatural - Chapters: 6 - Words: 11,024 - Reviews: 28 - Favs: 94 - Follows: 150 - Updated: 1/9 - Published: 8/17/2013 - J. Garson
Codex for the Great Anomaly by Dumbnoobe reviews
Title says it all.
Crossover - Harry Potter & Mass Effect - Rated: T - English - Chapters: 1 - Words: 414 - Reviews: 1 - Favs: 5 - Follows: 3 - Published: 1/9
The Q effect by dark platinum
La federacion tiene una deuda con Q , asi que este ser todo poderoso decide que de igual forma que el salvo a la flota estelar y por extencion a una parte del cuadrante alfa cuando les presento a los Borg , es momento de que ellos hagan lo mismo salvando no solo a un govierno si no a toda una galaxia de un enemigo similar
Crossover - Mass Effect & Star Trek Online - Rated: T - Spanish - Sci-Fi/Adventure - Chapters: 1 - Words: 1,438 - Published: 1/6 - Admiral Hackett, Councilor Tevos, OC
Stargate A New Age by kaln7 reviews
Shepard defeated the Collectors, but now he must face a universe different from his own, but his team won't be the only team to help him get through this uncertain future.
Crossover - Stargate: SG-1 & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 11 - Words: 87,007 - Reviews: 120 - Favs: 179 - Follows: 290 - Updated: 1/5 - Published: 4/6/2017
A Change of Fate by kaln7 reviews
The Colonials search for the Thirteenth tribe after the fall of their colonies maybe at an end, when they make contact with the Systems Alliance, but will Earth lend them a hand or will the Cylons destroy them all.
Crossover - Battlestar Galactica: 2003 & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 11 - Words: 68,789 - Reviews: 169 - Favs: 257 - Follows: 392 - Updated: 1/5 - Published: 4/8/2017
Biknota by dzha4225 reviews
What happens if animals never evolved on Earth in the first place? what kind of life will take it's place? what will the Galaxy react to a biologically strange version of Humanity that blurs the boundary between Synthetic and Organic Life? First Contact AU/Kerbal Space Program/Spore crossover
Crossover - Mass Effect & Prototype - Rated: T - English - Sci-Fi/Drama - Chapters: 9 - Words: 42,712 - Reviews: 37 - Favs: 98 - Follows: 139 - Updated: 1/5 - Published: 11/17/2019 - Tali'Zorah, Shepard, Clone Shepard, Alex M./Zeus
And the Meek Shall Inherit by ArcturusWolf reviews
Humanity reached for the stars earlier than expected, their colonies reaching out far and wide before the turn of the 22nd century. Yet they had not encountered another alien species; that is, until an exploration ship enters a miscalibrated mass relay and crash-lands in the homeworld of an alien species. How would humanity evolve when welcomed with kindness instead of violence?
Crossover - Mass Effect & Stellaris - Rated: M - English - Sci-Fi/Fantasy - Chapters: 6 - Words: 27,466 - Reviews: 97 - Favs: 230 - Follows: 321 - Updated: 1/4 - Published: 8/24/2019
Phantom Effect by overlord susanoo reviews
Danny found himself in a time that Humans have extended to the stars and have colonized planets.Everything should be awesome as he gets to travel space and pick fights with different species but like all things with everything good comes something bad. Danny now must join a group of Marines if they want to break the cycle that happens every fifty-thousand years and save the galaxy.
Crossover - Danny Phantom & Mass Effect - Rated: M - English - Adventure - Chapters: 6 - Words: 11,955 - Reviews: 16 - Favs: 92 - Follows: 111 - Updated: 1/4 - Published: 6/24/2018 - Danny F., J. Garson
Book One: Dawn of a New Age by DragonheartODST reviews
Humanity had been expanding across the stars for over 5 centuries in relative peace. But an alien alliance known as the Covenant wishes to destroy humanity entirely. Now threatened with extinction, can the fate of just one battle-scared survivor change the events of the war and those participating in it? Multi-crossover with Halo, Mass Effect, and a little bit of StarCraft. Hiatus
Crossover - Halo & Mass Effect - Rated: T - English - Adventure - Chapters: 14 - Words: 131,491 - Reviews: 289 - Favs: 312 - Follows: 368 - Updated: 1/3 - Published: 5/19/2016
Incompatible diet by dzha4225
(Rated M for biotic-consumption. (Terraria/PROTOTYPE crossover)) (The quest to find a strain/species of Evolved that does not eventually break through technological singularity within 4 to 8 chapters is hard. Really hard. Let's see whether giving them an voracious appetite for Element Zero would help.) (Warning: May Break the Universe even more than Incompatible Systems.)
Crossover - Mass Effect & inFAMOUS - Rated: M - English - Horror/Mystery - Chapters: 2 - Words: 4,073 - Favs: 12 - Follows: 15 - Updated: 1/3 - Published: 1/1 - Garrus V., OC
Are We Alone by JMB Fictional Writing reviews
What if gods were real? Many have wondered what would happen if these all-powerful beings were proven to exist, and what would occur if they ever stepped free from the ether. What would those who had once worshiped them do? How would the other races of the galaxy react, knowing that these gods existed? What changes in fate would occur if one of these gods appeared on Elysium?
Crossover - Bleach & Mass Effect - Rated: T - English - Adventure/Sci-Fi - Chapters: 19 - Words: 200,816 - Reviews: 1307 - Favs: 2,478 - Follows: 2,927 - Updated: 1/3 - Published: 7/6/2015 - Ichigo K., K. Urahara, J. Garson, Tali'Zorah
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