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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: 7 - Words: 43,217 - Reviews: 204 - Favs: 454 - Follows: 608 - Updated: 8/31 - Published: 5/29
The Legend Reborn by
CaptainCakeless117 reviews
Hero, traitor, conqueror, villain, savior- the man called Revan has been all of these. He left Coruscant with one goal in mind; to bring peace to the galaxy. The Foundry may have been Revan's greatest defeat, but this Legend's tale has yet to end. 4,000 years after the Jedi Civil War, the Sith are on the verge of victory. But the Force has another plan in mind.
Crossover - Star Wars & Star Wars - Rated: T - English - Sci-Fi/Adventure - Chapters: 29 - Words: 127,486 - Reviews: 552 - Favs: 1,449 - Follows: 1,788 - Updated: 8/30 - Published: 7/14/2013 - Count Dooku, Revan, HK-47, Null ARCs
A House Divided Amongst Itself by
ThePilotArchangel reviews
First Contact AU! The United Confederacy explores the Orion arm of the milky way galaxy, unaware of the rest of galactic civilization. When mankind meets its first aliens, how will things unfold? How will mankind react?
Mass Effect - Rated: T - English - Chapters: 28 - Words: 104,566 - Reviews: 300 - Favs: 349 - Follows: 515 - Updated: 8/27 - Published: 4/17 - Hannah S., Rael'Zorah, OC
XCOM: The Advent Directive by
Xabiar reviews
Australia has been annexed, the United Nations is in chaos, the world is under siege and the Ethereals have taken the field. Facing the full might of the Ethereal Collective, the Commander must rally XCOM, the newly formed ADVENT, and several other allies and rivals to unite the divided nations by any means necessary, for failure now will mean the fall of humanity once and for all.
X-Com - Rated: M - English - Sci-Fi/Drama - Chapters: 59 - Words: 1,207,814 - Reviews: 630 - Favs: 258 - Follows: 274 - Updated: 8/25 - Published: 5/5/2017 - Dr. Vahlen, Dr. Tygan, R. Shen, OC
Mass Effect: The Iron Heart of Man by
Apollonir reviews
[AU] The Illusive Man said that salvation comes with a cost. When corruption seeps into the galaxy, when centuries of status quo suddenly breaks in a mere decade, when blood's spilled among the stars like never before, when extinction looms over civilization, when morality is merely a shade... salvation can only come with sacrifice. [AU First Contact War & Reaper War; GRAPHIC]
Mass Effect - Rated: M - English - Sci-Fi/Suspense - Chapters: 31 - Words: 362,776 - Reviews: 764 - Favs: 1,575 - Follows: 1,945 - Updated: 8/24 - Published: 8/23/2016 - Admiral Hackett, Illusive Man, Shepard (M), OC
A Call to Duty by
Z98 reviews
Relations between the Terran Empire and the Citadel have been tense since the First Contact War, but efforts to reach amicable relations were bearing fruit. The discovery of a Prothean relic on Eden Prime offered another opportunity to improve relations, until things go badly awry. As Cadre, one of the emperor's chosen, Shepherd is charged with determining the truth, at any cost.
Mass Effect - Rated: T - English - Adventure - Chapters: 44 - Words: 349,243 - Reviews: 289 - Favs: 424 - Follows: 513 - Updated: 8/7 - Published: 9/13/2017 - Complete
For Earth and All Her Colonies by
GADPELLAEON reviews
Post Human-Covenant War AU. After the Great War, all the UNSC wants to do is rebuild and live in the peace. A peace that so many died for. What happens when they learn that no matter what, war will always find them. Chapters Updated - Chapter 11 uploaded (07/08/2019) Any criticism and/or tips welcome.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 11 - Words: 73,828 - Reviews: 368 - Favs: 872 - Follows: 1,286 - Updated: 8/7 - Published: 12/27/2018 - Master Chief/John-117, Arbiter, Shepard (F), Councilor Tevos
Imperium Ascendant by
Jayfiction19 reviews
We all know the tale, The Emperor of Mankind creates Twenty Primarchs to conquer the Galaxy. Nine Fall to Chaos's taint and Let the Galaxy Burn. What if this was not the case? What if the Ruinous Powers never got their claws into the Emperors Sons? What if the Imperium Ascended instead of falling into darkness and suffering? This is the story of that possibility
Warhammer - Rated: T - English - Sci-Fi/Adventure - Chapters: 28 - Words: 179,557 - Reviews: 486 - Favs: 724 - Follows: 858 - Updated: 7/31 - Published: 11/29/2017 - Daemons, Space Marines, The Emperor, Primarch/s
The White Wolf of Westeros by
DrakeCross reviews
The Wild Hunt is defeated and Ciri steps beyond to face the source of the White Frost. However something goes wrong and Geralt risks himself as he follows her, ending up in the land of Westeros. Dealing with new intrigue and politics, he will have to decide who he can trust while trying to save his adopted daughter...along with the lives of both worlds!
Crossover - Game of Thrones & Witcher - Rated: M - English - Adventure/Fantasy - Chapters: 36 - Words: 360,273 - Reviews: 973 - Favs: 1,816 - Follows: 2,145 - Updated: 7/26 - Published: 6/24/2017 - Jon S., Arya S., Geralt of Rivia, Ciri
Enduring the Flames of War by
Masterdude21 reviews
A joint Asari-Turian operation salvaged a "package" from a derelict wreckage in the Terminus Systems, whereupon they release a force of war beyond their reckoning. Hoping to avoid another war, Commander Shepard recruits the "package" into her team. A simple act of kindness, unwittingly paving the way for a clash unlike the galaxy has ever seen. Fate directs the flames of war.
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi/Horror - Chapters: 32 - Words: 452,176 - Reviews: 1657 - Favs: 2,436 - Follows: 3,102 - Updated: 7/12 - Published: 11/30/2015 - Master Chief/John-117, OC, Shepard (F)
The XCOM Files by
Xabiar reviews
A collection of documents, dossiers, and analysis on the various units, factions, organizations, cultures, history, events and leaders spanning the Ethereal Collective, ADVENT and XCOM. A supplementary companion collection to XCOM: The Advent Directive.
X-Com - Rated: T - English - Sci-Fi - Chapters: 144 - Words: 555,504 - Reviews: 307 - Favs: 108 - Follows: 109 - Updated: 7/9 - Published: 5/5/2017
The Reclaimer Effect by
Thorthemighty321 reviews
It's the eve of the centennial anniversary of the beginning of the Human-Covenant War. A mere twenty years after the discovery of Prothean Ruins on Mars. A simple case of poor communication leads to a brief but violent conflict erupting and leads to the United Earth Government and it's military arm the UNSCDF coming onto the Galactic Stage of politics, mysteries, and adventures.
Crossover - Halo & Mass Effect - Rated: T - English - Adventure - Chapters: 17 - Words: 174,265 - Reviews: 622 - Favs: 984 - Follows: 1,431 - Updated: 6/27 - Published: 2/28/2018
Shepherd of Humanity by
Empirialtank reviews
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
Crossover - Warhammer & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 7 - Words: 74,258 - Reviews: 243 - Favs: 436 - Follows: 571 - Updated: 6/20 - Published: 2/17
Mass Effect: Shadow of the Sith by
SomeGuyOverHere reviews
Commander Shepard has fought slavers, Geth, Collectors, and Reapers. Now a mysterious faction called the Sith Empire makes itself known. Led by Emperor Revan and the Emperor's Wrath, it attacks and declares war on the Citadel species. Will Shepard be able to save his galaxy from this new threat and still be ready for the coming of the Reapers?
Crossover - Star Wars & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 20 - Words: 282,912 - Reviews: 276 - Favs: 358 - Follows: 444 - Updated: 6/20 - Published: 5/30/2017 - Revan, Sith W., Shepard (M)
Cycles Upon Cycles by
The Incredible Muffin reviews
The residents of the Koprulu Sector thought they had finally achieved peace. They were wrong. Now, the Koprulu Alliance is faced with a galaxy that was bigger than they thought. They will meet new friends, and more importantly, new enemies, but all will be forced to put away their hatreds, both old and new, or none will survive the darkness that is to come...
Crossover - StarCraft & Mass Effect - Rated: T - English - Sci-Fi/Supernatural - Chapters: 37 - Words: 359,067 - Reviews: 1319 - Favs: 2,049 - Follows: 2,329 - Updated: 6/19 - Published: 1/13/2015
Honor-Bound by
The Incredible Muffin reviews
Shepard had thought it was over. The Reapers were defeated, at the cost of her life. Or so she thought. Now, Shepard is faced with the unknown yet again. For the first time, she found herself missing the Reapers...
Crossover - Warhammer & Mass Effect - Rated: M - English - Fantasy/Suspense - Chapters: 54 - Words: 347,701 - Reviews: 1294 - Favs: 1,234 - Follows: 1,381 - Updated: 5/29 - Published: 7/25/2015 - Complete
Matriarch and Primarch by
erttheking reviews
The Council has encountered a power that is so massive, so overwhelming, that they cannot hope to fight it. Matriarch Benezia instead sets out to negotiate for the Council's continued right to exist. Patreon sponsored one-shot.
Crossover - Warhammer & Mass Effect - Rated: T - English - Drama - Chapters: 1 - Words: 5,687 - Reviews: 47 - Favs: 191 - Follows: 179 - Published: 4/7 - Complete
From the Ashes by
erttheking reviews
Even after seeing their world burned, Humanity was able to stand up again, and push beyond their pre-war status and reach the heavens. But how will a hardened Humanity handle life among the stars? And how will others react to this aggressive newcomer?
Crossover - Fallout & Mass Effect - Rated: T - English - Sci-Fi/Romance - Chapters: 118 - Words: 913,475 - Reviews: 3479 - Favs: 2,661 - Follows: 2,506 - Updated: 2/24 - Published: 5/17/2012
Code Geass 50k: Lelouch of the Imperium by
Soraga reviews
In the fifty-first millennium, the Imperium of Man is in the final stages of collapse. As the forces of Abaddon the Despoiler close in on Terra, humanity's final stronghold, their only hope is the Emperor's forgotten soldiers: the Black Knights.
Crossover - Warhammer & Code Geass - Rated: T - English - Adventure/Sci-Fi - Chapters: 39 - Words: 201,675 - Reviews: 332 - Favs: 487 - Follows: 544 - Updated: 2/21 - Published: 1/8/2010 - The Emperor, Lelouch L.
War, Peace, and other Galactic Customs by
The Almighty Afroduck reviews
After a long, terrible war, the Federation of Sovereign Empires forms as the product of the alliance created early in the Great War between the Covenant Separatists and the UNSC. Time passes as they progress greatly, eventually discovering the existence of other galactic governments. The events that will follow will change the course of the galaxy in more ways than one. PART- 3
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 33 - Words: 375,183 - Reviews: 621 - Favs: 984 - Follows: 1,210 - Updated: 1/29 - Published: 3/1/2014
The Last Spartan by
DinoJake reviews
An AU fic in which the Halo and ME universes share the same galaxy. After a well deserved rest in Cryo-Sleep, Master Chief finally awakens...to a whole new galaxy.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 55 - Words: 489,686 - Reviews: 3873 - Favs: 3,810 - Follows: 3,839 - Updated: 12/31/2018 - Published: 5/2/2010 - Master Chief/John-117
Biomass Effect by
Beastrider9 reviews
All life on Earth had been consumed by Blacklight. With no Biomass to feed on, Blacklight had to evolve, adapt, and grow. Now a collective Council of Aliens discovers the existence of such a life form. How do the aliens see a form of life that is viral, how they deal with it, what are the consequences to the galaxy of such a race existing at all.
Crossover - Mass Effect & Prototype - Rated: M - English - Sci-Fi - Chapters: 59 - Words: 303,766 - Reviews: 2631 - Favs: 3,562 - Follows: 3,992 - Updated: 12/3/2018 - Published: 8/8/2014
Alternate Past, Uncertain Future Mk II by
Follower38 reviews
Co-written with aDarkOne History, a single event, can alter so much, let alone two. The San'Shyum are no more. The Krogan Empire stands strong. Humanity is now a giant among the stars. With three Galactic Superpowers in play, will an encounter see a new Golden Age, or an Era of War? (Chapters 1-12 being rewritten)
Crossover - Halo & Mass Effect - Rated: T - English - Adventure - Chapters: 33 - Words: 279,720 - Reviews: 757 - Favs: 702 - Follows: 812 - Updated: 10/6/2018 - Published: 8/28/2012
Rogue Knight by
Illuviar reviews
A man with the memories and skills of a Sith Warrior from a conflict that ended four millenia ago finds himself thrown in the opening weeks of the Clone Wars. He has a mission - deal with the current Sith Lord and his supporters permanently and prepare the galaxy for the eventual arrival of the Vong. This is a SI story.
Crossover - Star Wars & Star Wars: The Clone Wars - Rated: M - English - Adventure/Sci-Fi - Chapters: 169 - Words: 637,470 - Reviews: 2709 - Favs: 2,724 - Follows: 2,458 - Updated: 1/5/2018 - Published: 10/26/2014 - Complete
A Beautiful Walled Garden by
Nymeria1994 reviews
During the geth-quarian conflict of the 1890s, approximately a year before the quarians retreat from Rannoch, a quarian child from a remote area of the planet finds and attempts to repair a damaged geth that had been discarded by its creator.
Mass Effect - Rated: K+ - English - Sci-Fi/Family - Chapters: 1 - Words: 5,701 - Reviews: 8 - Favs: 23 - Follows: 7 - Published: 7/14/2017 - Complete
Tranquility by
iceangelmkx reviews
Nearly a year after the Reaper War, Shepard and Garrus find a new home that's located somewhere not-so-warm and tropical. Contains a series of stories of domestic life post-ME3. FINAL TWO CHAPTERS POSTED!
Mass Effect - Rated: T - English - Romance - Chapters: 38 - Words: 181,519 - Reviews: 194 - Favs: 327 - Follows: 363 - Updated: 6/21/2017 - Published: 2/4/2013 - [Shepard (F), Garrus V.] - Complete
Someone had blundered by
magkiln reviews
A turian scout force sets out to patrol empty starsystems. A human exploration fleet makes ready to approach a dormant mass relay. Soon their paths will cross and if they fail to make peaceful contact, the consequences will be deadly. Rated T for violence
Crossover - Aliens/Predator & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 38 - Words: 144,248 - Reviews: 757 - Favs: 769 - Follows: 795 - Updated: 4/20/2017 - Published: 4/25/2015 - Predator/Yautja, Illusive Man, Councilor Tevos, Councilor Sparatus - Complete
A Matter of Time and Space by
Xeno Sapian reviews
2185 – Valni Severan is back. Two years after the events of AMoRaC, Valni is accused of treason and thrust headlong into a deadly conspiracy full of adventure, betrayal, seduction, and her ex-lover, Ken Donnelly. Battling enemies on all sides, can Valni expose the real traitors? Contains strong battle violence, romance, nudity, sexual content, and lots of dancing!
Mass Effect - Rated: M - English - Adventure/Romance - Chapters: 51 - Words: 213,294 - Reviews: 193 - Favs: 104 - Follows: 94 - Updated: 12/24/2016 - Published: 10/31/2014 - [Ken D., OC] Lia'Vael, Gabby D. - Complete
Shepherd of the Stars by
joestej reviews
When Humanity ventured into the stars, they found they were not alone. And they were not liked. So they learned. How to build bigger, stronger ships. More powerful weapons. In order to survive, they learned to wield the Sword of the Stars. But there was one lesson they hadn't learned. It was called the Mass Effect.
Crossover - Mass Effect & Sword of the Stars - Rated: T - English - Sci-Fi - Chapters: 57 - Words: 218,231 - Reviews: 542 - Favs: 418 - Follows: 381 - Updated: 9/21/2015 - Published: 3/19/2014 - Garrus V., Liara T'Soni, Tali'Zorah, Miranda L.
Another Realm I: Arrival by
Katkiller-V reviews
So, I've woken up with a pounding migraine and a million questions, and no answers are in sight. The best I can do is learn to survive as I try to get ready for the invasion that I know is coming. But like everybody knows, Illium is not a safe planet. When all I've got for friends are a jaded mechanic, a bitter matriarch, and a Batarian exile... even survival can prove to be rough.
Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 41 - Words: 220,922 - Reviews: 442 - Favs: 509 - Follows: 364 - Updated: 6/13/2015 - Published: 2/11/2015 - Zaeed M., Aethyta, T. Vasir, OC - Complete
OSaBC : And Then There Were None by
LogicalPremise reviews
A continuation of the Alternative Universe story in "Of Sheep and Battle Chicken," as Major-Commander Shepard deals with her promotion, a series of threats that could take down the government of the SA, and the ramifications of humanity joining the Council. Includes Pinnacle Station and Bring Down the Sky. M for language and violence. FShep/Liara. Coauthor Progman. Now complete.
Mass Effect - Rated: M - English - Sci-Fi/Suspense - Chapters: 40 - Words: 429,877 - Reviews: 711 - Favs: 436 - Follows: 313 - Updated: 4/11/2015 - Published: 9/23/2014 - [Shepard (F), Liara T'Soni] Garrus V., Tali'Zorah - Complete
Once Bitten, Twice Shy by
Varigos D. Vastitas reviews
Unwittingly uplifted beyond expectation by their foes, humanity not only destroyed their aggressors, but surpassed them and made their way to the stars. As Humanity expands from the Earth will they find their place in the galaxy, or will ghosts from the past come back to haunt them? (Co-writer NathanHale2.)
Crossover - X-Com & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 19 - Words: 122,522 - Reviews: 627 - Favs: 1,107 - Follows: 1,343 - Updated: 3/9/2015 - Published: 3/15/2014 - D. Anderson, Illusive Man, Councilor Tevos, Councilor Sparatus
A Matter Of Race And Character by
Xeno Sapian reviews
2183 - Before Mass Effect, before the Battle of the Citadel, Gabby and Ken were part of an exchange program with the Turian Fleet. Join our intrepid engineers and a full cast of OC turians, asari, salarians, and a krogan, as they face adventure, romance, lethal enemies, and boogying aliens. Content warning: includes violence, swearing, nudity and moderate sex. Complete.
Mass Effect - Rated: T - English - Humor/Romance - Chapters: 42 - Words: 211,160 - Reviews: 189 - Favs: 227 - Follows: 193 - Updated: 9/24/2014 - Published: 10/11/2012 - [Ken D., OC] Gabby D. - Complete
Of Sheep and Battle Chicken by
LogicalPremise reviews
My AU retelling of ME1 in a darker, sinister universe. Much darker and more realistic views of the SA and the Citadel Council, a more dangerous, involved Cerberus, and a more conflicted Saren and Benezia. Changes much of the ME1 dynamic to remove plot holes with more focus on politics, military strategy, and space combat. Pairing is FShep/Liara. Rewritten through Chapter 65 so far.
Mass Effect - Rated: M - English - Sci-Fi/Angst - Chapters: 123 - Words: 744,348 - Reviews: 1516 - Favs: 1,232 - Follows: 916 - Updated: 9/22/2014 - Published: 4/13/2012 - [Shepard (F), Liara T'Soni] Garrus V., Illusive Man - Complete
Raised Turian by
Deadelfsgirl reviews
A/U First Contact story, of Jane and her Turian father Ganis Vandrel. No reapers, just Jane trying to make it as a human, in a Turian world that says she doesn't belong. Garrus/Shepard pairing, with some twists and turns.
Mass Effect - Rated: M - English - Romance/Drama - Chapters: 23 - Words: 119,564 - Reviews: 317 - Favs: 421 - Follows: 339 - Updated: 1/4/2014 - Published: 12/30/2012 - [Shepard (F), Garrus V.] Kaidan A. - Complete
The Shepard Code by
quondam reviews
Set Post-ME3 where Shepard chooses Control. A hundred years after the Reaper War, a Turian ship captained by the grandson of Garrus Vakarian comes across a derelict Reaper inhabited by a hologram of Commander Shepard.
Mass Effect - Rated: K+ - English - Chapters: 2 - Words: 7,111 - Reviews: 136 - Favs: 671 - Follows: 136 - Published: 5/5/2012 - Garrus V., Shepard (F) - Complete
Something That'll Last by
popehippo reviews
A small glimpse into the life of those outside of Commander Shepard's story; based on the interactions of two NPCs in Illium.
Mass Effect - Rated: K - English - Romance/Sci-Fi - Chapters: 1 - Words: 3,055 - Reviews: 89 - Favs: 423 - Follows: 52 - Published: 6/26/2010 - Complete