Halo and Mass Effect Crossovers
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Operation Hidden Paths: A Halo-Mass Effect Crossover by pj6778457 reviews
story of a new universe where the System Alliance has been replaced by the Unified Earth Government (UEG). Set in the worlds of Halo and Mass Effect
Rated: T - English - Adventure - Chapters: 1 - Words: 1,525 - Reviews: 14 - Favs: 64 - Follows: 116 - Published: 4/11
Crucible of Clans by Lighting wolf knight
He would have his revenge upon Atriox And he might up even doing things he didn't expect. Rated T for violence, death, and profanity
Rated: T - English - Sci-Fi/Mystery - Chapters: 1 - Words: 814 - Favs: 2 - Follows: 3 - Published: 4/11 - OC, Atriox, Liara T'Soni, O. Petrovsky
House divided by Lighting wolf knight
Leading a house was hard. Leading one in a new galaxy? Even harder. Rated T for violence, death, and profanity.
Rated: T - English - Sci-Fi/Adventure - Chapters: 1 - Words: 803 - Favs: 4 - Follows: 3 - Published: 4/11 - OC, Warden Eternal, Tali'Zorah, Illusive Man
Accounts of the Flood conflicts by hunter 139 reviews
A multicrossover series of one-shots depicting several franchises and their encounters with the Flood. I do not own Halo or any other franchises depicted in these stories.
Rated: T - English - Horror/Sci-Fi - Chapters: 41 - Words: 103,318 - Reviews: 215 - Favs: 186 - Follows: 200 - Updated: 3/17 - Published: 1/15/2015 - Gravemind - Complete
Drop into Hell by Lighting wolf knight reviews
They have a lot more to do before its done. Rated T for violence, death, and profanity.
Rated: T - English - Adventure/Romance - Chapters: 3 - Words: 11,962 - Reviews: 1 - Favs: 19 - Follows: 27 - Updated: 3/8 - Published: 2/3 - Miranda K., OC, Admiral Hackett, Shepard
The Reclamation by Fade Maybe reviews
Through ONI's manipulation, the UNSC stumbles upon a Mass Relay and is dragged into a new war. They'll discover the battered races of the Citadel, the political intrigue of its factions, and a second group of humans governed by the Systems Alliance, divided by Cerberus, and lead by Commander Shepard. Yet no one can stop what is to come: the Reclamation, and the death of the galaxy.
Rated: T - English - Drama/Suspense - Chapters: 55 - Words: 409,476 - Reviews: 1681 - Favs: 1,830 - Follows: 2,251 - Updated: 2/27 - Published: 3/13/2013
Salvation (ENG) by Z0n3theDaMn3d reviews
The knowledge of sin is the beginning of salvation. More than 40 years after the end of the war against the Covenant, a new storm is brewing on the edge of the human empire. Will the colonies of the Linwood Sector be able to withstand this new threat or will they burn like Harvest once did?
Rated: M - English - Sci-Fi/Adventure - Chapters: 9 - Words: 78,779 - Reviews: 130 - Favs: 357 - Follows: 535 - Updated: 2/26 - Published: 10/8/2020 - T. Hood, Shepard, Councilor Tevos, Benezia
On the Illusion of Might by evevee reviews
We thought ourselves powerful, able to conquer a galaxy with nothing but toys. When we overcame every challenge, breached the space between the galaxies themselves, what use were the words of a race ashamed of their own past? Yet we cannot deny that we were warned, for while a challenge to a human is laughable, a challenge to humanity is a death sentence.
Rated: M - English - Sci-Fi - Chapters: 27 - Words: 297,181 - Reviews: 2125 - Favs: 3,958 - Follows: 4,963 - Updated: 2/21 - Published: 2/21/2017 - Master Chief/John-117, Cortana, Garrus V., Shepard
Operation Terra Sunrise HALO ( AU) x ME ( AU) by SimplyLaggy reviews
The Endless Swarm, known as the Reapers. Mostly defeated by the forerunners, yet after the death of almost all forerunners, they return. Now, the Reclaimers face them. Join Rebecca Shepard, a OMI Long-term undercover operative, as she goes undercover as Jane Shepard on Terra, Systems Alliance Earth, which was made by Ancient Humanity, as a ancient human remnant AI watches.
Rated: T - English - Chapters: 2 - Words: 4,521 - Reviews: 7 - Favs: 59 - Follows: 85 - Updated: 2/16 - Published: 2/9 - Illusive Man, Shepard
The USSC: A Timeline by SimplyLaggy reviews
A timeline of my USSC fanfic base. Feel free to use what's inside, but please gib me credit : REVAMP OUT 28/2/23 ENJOY
Rated: T - English - Sci-Fi - Chapters: 1 - Words: 1,628 - Reviews: 2 - Favs: 16 - Follows: 14 - 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
Rated: M - English - Adventure/Romance - Chapters: 16 - Words: 116,869 - Reviews: 55 - Favs: 186 - Follows: 234 - Updated: 2/8 - Published: 11/29/2021 - [SPARTAN-B312/Noble Six, Oriana L.]
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.
Rated: M - English - Adventure/Fantasy - Chapters: 2 - Words: 11,294 - Reviews: 15 - Favs: 118 - Follows: 153 - Updated: 1/31 - Published: 1/5
Immortal Galaxies by Lighting wolf knight reviews
An escape from an overrun galaxy lands them in another galaxy? What does being the biggest fish in the water gain you in a world without heavy hitters? Rated T for violence, death, and profanity.
Rated: T - English - Romance/Adventure - Chapters: 3 - Words: 4,777 - Reviews: 10 - Favs: 98 - Follows: 160 - Updated: 1/13 - Published: 11/11/2021 - [OC, Vetra N.] T. Hood
United Earths Empire: The Beginning of a New Age 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.
Rated: T - English - Fantasy/Sci-Fi - Chapters: 8 - Words: 21,362 - Reviews: 71 - Favs: 213 - Follows: 280 - Updated: 1/5 - Published: 5/29/2022 - J. Keyes, J. Cutter, SPARTAN-B312/Noble Six, Jerome-092
Mass Effect Kills Halo by giblo126 reviews
I was frustrated and wanted to get something out.
Rated: K+ - English - Chapters: 1 - Words: 495 - Reviews: 29 - Favs: 2 - Follows: 2 - Published: 1/1
Mass effect: the Jaded ones by Ray SK reviews
A UNSC Human-covenant war-era battle group led by a Punic class supercarrier is introduced to a new galaxy. One where people are xenophilic, use to times of peace and harmony, and against disrupting the Status Quo. What will an extremely aggressive xenophobic and battle-hardened human faction add to the mix? and will their addition change the future of this galaxy. (No Spartans)
Rated: M - English - Adventure/Humor - Chapters: 5 - Words: 29,851 - Reviews: 71 - Favs: 182 - Follows: 263 - Updated: 12/25/2022 - Published: 2/6/2022 - E. Buck, OC
No Greater Calling by silencewillfall0091 reviews
Because here's the thing. Turians, despite their reputations, had never loved war- not the suffering, the dying, nor the pain. They loved victory- the prevailing of clear good over clear evil- justice winning in the end, the beating of overwhelming odds for peace. And there was never more a clear example of this type of war than ours against the Covenant.
Rated: T - English - Sci-Fi - Chapters: 4 - Words: 6,957 - Reviews: 97 - Favs: 441 - Follows: 692 - Updated: 12/4/2022 - Published: 1/7/2022
Mass Effect: Forward Unto Dawn by WildcatWarrior67 reviews
Spartans never die. They're just missing in action. At least, that's how the saying goes. But for the Master Chief and Cortana, they're no longer missing. Awaking in a different universe, the two of them will uphold their oath: to protect Earth and all her colonies. Only it won't be from the Covenant this time.
Rated: T - English - Sci-Fi/Adventure - Chapters: 3 - Words: 3,463 - Reviews: 21 - Favs: 113 - Follows: 203 - Updated: 11/28/2022 - Published: 11/26/2022 - Master Chief/John-117, Cortana, Shepard
Collectors at Dawn v2 by jacksld850 reviews
A rewrite of the original Collectors at Dawn. Lost all of the work I had on it so I'll be redoing it from scratch.
Rated: M - English - Adventure/Sci-Fi - Chapters: 1 - Words: 11,710 - Reviews: 4 - Favs: 37 - Follows: 64 - Published: 11/21/2022 - Master Chief/John-117, Cortana, Miranda L., Shepard
The Adventures of the Lucen: The VykurCorp Conspiracy by General Rage reviews
Liara T'Soni continued her mission to protect the Galaxy while Commander Shepard is in another dimension. She must stop the Covenant and the allies they've gathered from wreaking havoc in a Galaxy without it's greatest hero. While she's had some success, there's a gathering storm on the horizon and one of her crew of misfits will be forced to confront her past before it clears.
Rated: M - English - Sci-Fi/Adventure - Chapters: 15 - Words: 249,270 - Reviews: 175 - Favs: 139 - Follows: 147 - Updated: 11/17/2022 - Published: 6/26/2016 - OC, Liara T'Soni, U. Wrex
Mass Emile by Ranschaj reviews
Emile survives the two zealots at the end of Reach, and after surviving Covenant onslaught, finds himself in the ME universe. Kick-ass picture is thanks to freejimmy on deviantart
Rated: M - English - Adventure/Sci-Fi - Chapters: 11 - Words: 88,211 - Reviews: 885 - Favs: 1,172 - Follows: 1,433 - Updated: 10/30/2022 - Published: 12/11/2012 - Emile-A239/Noble Four
Daily war with monster girls by Masterdude21 reviews
With the help of the highly-motivated extra-species in the military, mankind holds their own against the brutal onslaught of the Covenant. In their haste to close the gap in space warfare, ONI stumbles upon Relay 314. Even as new enemies arise, the galaxy constantly thwarts Cortana's schemes to build the Master Chief the ultimate harem. Halo/Mass Effect/Monster Musume crossover.
Rated: M - English - Humor/Romance - Chapters: 28 - Words: 383,980 - Reviews: 1089 - Favs: 2,158 - Follows: 2,417 - Updated: 10/28/2022 - Published: 9/20/2016 - Master Chief/John-117, Cortana, Shepard
The Might of Humanity by The Grandiose Library reviews
In Progress
Rated: M - English - Adventure/Sci-Fi - Chapters: 1 - Words: 6,741 - Reviews: 15 - Favs: 98 - Follows: 116 - Published: 8/16/2022
Mass Effect Terran Effect by The Grandiose Library reviews
Work In Progress
Rated: T - English - Sci-Fi - Chapters: 1 - Words: 695 - Reviews: 3 - Favs: 31 - Follows: 40 - Published: 8/16/2022
Predating Prelates by Lighting wolf knight reviews
The one ship that ends up here and it changes so much... Rated T for violence, death, and profanity.
Rated: T - English - Adventure/Sci-Fi - Chapters: 1 - Words: 827 - Reviews: 3 - Favs: 7 - Follows: 12 - Published: 8/2/2022 - OC, Shepard, Peebee S.
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