2k+No Goddesses Need Apply » by lord of the land of fire Aqua abandons Kazuma and he is forced to survive on his own. There is no stopping him now.
KonoSuba: God's Blessing on This Wonderful World, T, English, Humor, chapters: 48, words: 109k+, favs: 5k+, follows: 6k+, updated: 9/17 published: 7/2/2019
1k+ Star-Bound » by The Incredible Muffin 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.
Warhammer & Mass Effect, M, English, Sci-Fi & Supernatural, chapters: 36, words: 245k+, favs: 1k+, follows: 1k+, updated: 8/11 published: 5/29/2019
1k+ Mythos Effect » by Omniscent1 A crossover between Mass Effect and Cthulhutech. Humanity has won the Aeon War and has since expanded and thrived. How will the galaxy fare with this new power?
Cthulhu Mythos & Mass Effect, M, English, Sci-Fi & Adventure, chapters: 25, words: 192k+, favs: 4k+, follows: 5k+, updated: 7/9 published: 6/5/2013, Saren A., Shepard, OC
600Contact » by KE12 AU: Humanity failed to conquer FTL, having no Eezo in Sol, but they did manage to overcome many other technologies which have allowed them to become the masters of their solar system, but what happens when the Citadel Council stumble across them in the year 3517AD? The Citadel wants their technology and Humanity wants out of Sol, but can a deal be struck? Heavy! focus on FC aspects
Mass Effect, K+, English, Sci-Fi, chapters: 33, words: 184k+, favs: 1k+, follows: 2k+, updated: 6/18 published: 4/3/2019, [Shepard, Councilor Tevos] Benezia
2k+ The Mission Stays the Same » by Broken Trident 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)
Warhammer & Mass Effect, M, English, Sci-Fi & Adventure, chapters: 33, words: 367k+, favs: 4k+, follows: 5k+, updated: 4/6 published: 10/4/2011, Eldar, Imperial Guard, Shepard
4k+ Pokedex » by Birdboy A drabble collection of the sort of pokemon world lore you might find in an expanded version of the pokedex.
Pokémon, T, English, chapters: 905, words: 258k+, favs: 2k+, follows: 1k+, updated: 3/8 published: 7/20/2010, Arceus
92 A Young Woman's Post Apocalypse » by ShadySteps After the type 95 suffered a meltdown Tanya finds herself in the ruined remains of America's capital city.
Fallout & Youjo Senki: Saga of Tanya the Evil, T, English, Adventure & Sci-Fi, chapters: 13, words: 66k+, favs: 324, follows: 400, updated: 7/4/2021 published: 4/29/2021, Tanya
933Living an Indoctrinated Dream » by Aberron Sending Shepard back in time? Inefficient. Unlikely to produce significant changes to timeline. Sending the Illusive Man back in time? Difficulty level has increased. Jack Harper, The Illusive Man, is back where it all started. New Cerberus, New plan, and the Reapers watching, always watching. Sending a Hero back in time does nothing; Sending back this guy? Priceless. AU.
Mass Effect, M, English, chapters: 93, words: 1116k+, favs: 1k+, follows: 1k+, updated: 6/17/2021 published: 6/16/2014, Garrus V., Illusive Man, Shepard, Hannah S.
138 Instruments of War » by Gravityhorse The only thing that matters is the survival of the Human race.
Warhammer & Mass Effect, M, English, Sci-Fi & Adventure, chapters: 6, words: 103k+, favs: 384, follows: 519, updated: 6/15/2021 published: 9/6/2020, Imperial Guard, Adeptus Mechanicus, Illusive Man, Shepard
2k+ Transcendent Humanity » by Solaris242 Humanity never developed FTL. The Prothean archives contained no technology, no Element Zero, just a warning. Isolated from the rest of the galaxy for two thousand years, restricted to their only system, how will humanity have changed when they first meet the Turians? AU, alternate history of humanity and First Contact.
Mass Effect, T, English, Sci-Fi, chapters: 27, words: 79k+, favs: 8k+, follows: 8k+, updated: 2/16/2021 published: 5/7/2013
22 There is no happily ever after » by bigbook29 "There is a cancer eating at the earth. In a single day it has covered this planet with a flood of living blades and needle-fanged mouths the likes of which no gem has ever seen. They're a horror, an abomination, there's no talking to it. There's no peace here. There is no reason. It's all been abandon. The Great Devourer has come. And there is nothing we can do to stop it."
Warhammer & Steven Universe, M, English, Horror & Tragedy, chapters: 5, words: 46k+, favs: 28, follows: 31, updated: 2/14/2021 published: 2/3/2020, Tyranids, Steven U., Spinel
902Incompatible System » by mp3.1415player Technological incompatibility can cause serious issues even at a simple level. When it comes to interstellar travel, those issues can be quite profound...
Mass Effect, T, English, Sci-Fi & Adventure, chapters: 16, words: 127k+, favs: 3k+, follows: 4k+, updated: 1/5/2021 published: 8/18/2019
74 The Catalyst For Revenge: Andromeda » by Jade Tatsu Andromeda has so many possibilities, good and bad. The Ascended go to Andromeda but no one knows what to expect? Emptiness? Empires? Enemies? Still, when the Ascended decide that a galaxy is theirs, you can rest assured, it is theirs. And no one stands in their way. Here are some possibilities for what might happen in Andromeda. AU
Mass Effect, T, English, Adventure & Sci-Fi, chapters: 7, words: 10k+, favs: 228, follows: 248, updated: 8/27/2020 published: 10/10/2019, Illusive Man, Harbinger, Shepard
120 Expansion Edition » by Danen5 Its a game. Or is it? Turians get to welcome the denizens of a Stellaris based civilization that is hell bent on the extermination of all aliens, well except for some. Of course the Turians fired first, Galactic laws and all that bullshit. In return they are faced with an enemy that doesn't play fair. Warning: HFY. Read at your own peril AU Fic. Edit: On indefinite Hiatus
Mass Effect & Stellaris, T, English, Sci-Fi, chapters: 8, words: 70k+, favs: 305, follows: 385, updated: 7/12/2020 published: 4/27/2017
441 Shepherd of Humanity » by Empirialtank The Age of Strife has ended and the lost colonies of man reach for the stars once more, most ignorant of their history or each other's existence. In one corner of the Galaxy mankind meets the peaceful Citadel Council and joins a galactic community. In another the Master of Mankind has lost his sons to the warp. One of those sons has been found in Alliance space. On Elysium. preME1
Warhammer & Mass Effect, T, English, Sci-Fi & Adventure, chapters: 9, words: 112k+, favs: 807, follows: 1k+, updated: 7/6/2020 published: 2/17/2019
47 The Chronicles of a Girl in Space » by Ausari Lieutenant Colonel Tanya von Degurechaff falls in one of the final battles of the Great War, but the gods aren't through with her life just yet. Sent back to her original timeline, but more than 100 years in the future, how will Tanya deal with her new reality where the entire galaxy is open to her.
Mass Effect & Youjo Senki: Saga of Tanya the Evil, M, English, Sci-Fi & Adventure, chapters: 2, words: 8k+, favs: 291, follows: 396, updated: 2/8/2020 published: 2/4/2020, J. Garson, Tanya
573 Monstrum Hominis » by CiscoTheSoto Alucard, the most powerful vampire in history, is untested in might. Luke Valentine, Alhambra, Rip Van Winkle, and Alexander Anderson all fought toe-to-toe with this monster, and one by one, they all fell prey to Hellsing's lapdog. Suddenly, Alucard and Seras are transported to a world where monsters attack cities on a daily basis. But Alucard soon discovers a man above monsters...
Hellsing & One Punch Man/ワンパンマン, T, English, Supernatural & Humor, chapters: 25, words: 178k+, favs: 1k+, follows: 1k+, updated: 11/28/2019 published: 8/27/2017, Alucard, Seras, Saitama, Genos
4k+ The Catalyst For Revenge » by Jade Tatsu Shepard chose to destroy Sovereign. The Council then declared war on the SA for that betrayal. The Humans tried to fight but it was a losing battle. Subjugation leading to extinction was not acceptable for making the hard military decision so the Humans chose another path and made a deal with the Reapers. The galaxy and the Cycle would never be the same. AU Eternity beckons.
Mass Effect, T, English, Adventure & Drama, chapters: 162, words: 1180k+, favs: 1k+, follows: 1k+, updated: 10/10/2019 published: 10/10/2016, Ashley W., Illusive Man, Harbinger, Shepard
116 The Catalyst For Revenge: Extras » by Jade Tatsu Extra bits from The Catalyst For Revenge. Could be extra scenes, alternative scenes or things that are just plain weird. These are things that didn't make it into the main story but still might give someone a laugh or a smile or illustrate things in a different way. They were usually given out to readers as a chapter bonus. Enjoy. Some AU, some not AU. All relate to Catalyst.
Mass Effect, T, English, Humor & Adventure, chapters: 28, words: 38k+, favs: 133, follows: 127, updated: 10/7/2019 published: 9/20/2017, Ashley W., D. Anderson, Shepard, Councilor Quentius
3 Angry Marine finds love » by Dreamsofiron Can love exist in this dark and nihilistic future?
Warhammer & Fifty Shades Trilogy, T, English, Romance & Friendship, chapters: 3, words: 575, favs: 3, follows: 3, updated: 9/2/2019 published: 8/16/2019