Halo and Mass Effect Crossovers
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To Become Something More by Sha825 reviews
Humanity discovers the Mass Effect earlier, and as a result, the First-Contact war doesn't end on Shanxi. A renegade Asari matriach ferries ancient knowledge to a new and unlikely ally, kick-starting a secretive program to recruit 75 children and make them something more. A hardened, militaristic, but united humanity emerges to the galactic scene. An ancient cycle rumbles to life.
Rated: M - English - Sci-Fi/Suspense - Chapters: 1 - Words: 2,110 - Reviews: 12 - Favs: 53 - Follows: 85 - Published: 2/13 - Master Chief/John-117, C. Halsey, Cortana, D. Anderson
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.
Rated: M - English - Sci-Fi/Adventure - Chapters: 15 - Words: 58,195 - Reviews: 265 - Favs: 849 - Follows: 1,263 - Updated: 2/11 - Published: 12/26/2021 - OC, Tali'Zorah, Admiral Hackett, Rael'Zorah
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: 17 - Words: 275,180 - Reviews: 185 - Favs: 141 - Follows: 151 - Updated: 2/11 - Published: 6/26/2016 - OC, Liara T'Soni, U. Wrex - Complete
War of the Old Ones by Ian the Mechanic reviews
In forgotten ages past, two near eldritch forces vied for the very life essence of the Galaxy. Unknown to the young races, that war is still ongoing. how can the UNSC, the Citadel Council or the Covenant hope to stand against such forces, when they are still embroiled in their own petty squabbling? How could they hope to survive the War of the Old Ones?
Rated: M - English - Sci-Fi/Horror - Chapters: 28 - Words: 155,737 - Reviews: 173 - Favs: 339 - Follows: 498 - Updated: 2/7 - Published: 2/21/2022
A Whole New World by Spartan III Commando reviews
Noble six's story did not end on Reach, he escaped the doomed planet after saving the Pillar of Autumn, and he and 117 fought across each Halo, until an incident sent him to a whole new world. And he is wholly unprepared for the journey in store.
Rated: M - English - Sci-Fi/Adventure - Chapters: 13 - Words: 57,417 - Reviews: 79 - Favs: 409 - Follows: 584 - Updated: 2/7 - Published: 7/7/2016 - SPARTAN-B312/Noble Six
The Sword of the Geth by Doctor poo and the TURDIS reviews
Dying on Mantle's Approach, Cortana wakes up in an unfamiliar environment. In her drive to get home, she 'employs' the assistance of the local synthetics. She never wanted to be a galactic overlord. But a UNSC AI in an environment woefully unprepared for one of her caliber makes an easy one.
Rated: T - English - Sci-Fi/Humor - Chapters: 23 - Words: 123,604 - Reviews: 568 - Favs: 1,130 - Follows: 1,601 - Updated: 2/4 - Published: 11/23/2023 - Cortana, Shepard
The Rook by Twisted Fate MK 2 reviews
On the way down to New Mombasa, Rookie falls into the Slipspace Rupture and ends up crashing down on Menae, high above Palaven, right in the midst of the Reaper War. From there, the war itself will shift and the fighting persists, but who knows what an ODST will add to the mix. (Redo of an older story)
Rated: M - English - Adventure - Chapters: 17 - Words: 59,187 - Reviews: 140 - Favs: 496 - Follows: 739 - Updated: 2/3 - Published: 7/8/2022 - Rookie, Shepard
Bellum Terranum by F35B reviews
Humanity has long since recovered from the effects of the Human-Covenant War, beginning to resettle and rebuild. The Quarians, with help from the Council, have also begun to rebuild their fallen civilization, settling pre-approved Council planets finally settling after surviving the Morning Wars. However, one of these planets has already been taken by an unaware humanity.
Rated: T - English - Sci-Fi/Adventure - Chapters: 2 - Words: 15,221 - Reviews: 171 - Favs: 408 - Follows: 636 - Updated: 1/25 - Published: 7/31/2023
The mark of the federation of independent species by migos501 reviews
(TESTING PHASE)“A single event can shape our lives or change the course of history.” United under a single banner, the federation stands as a testament that any species can thrive in harmony, gifted with technology that can tip the scale of an entire galaxy, they now face with a entirely new government and it’s sets of challenges(focusing on the mass effect story)
Rated: M - English - Sci-Fi - Chapters: 2 - Words: 37,074 - Reviews: 33 - Favs: 76 - Follows: 91 - Updated: 1/24 - Published: 10/6/2023 - Master Chief/John-117, Shepard
On the Shoulders of Giants by Shoot The Runner reviews
Two galaxies thrown together by a cosmic fluke. On one side of the galaxy, the war-weary UNSC vows to rebuild and become a giant in the stars so that they will never be so helpless again. Whilst another humanity is still finding its feet in the Citadel, with treachery and politics hindering its progress. How does the merging of two galaxies impact the course of all of their fates?
Rated: T - English - Sci-Fi/Adventure - Chapters: 2 - Words: 19,589 - Reviews: 82 - Favs: 404 - Follows: 596 - Updated: 1/14 - Published: 6/20/2023 - Master Chief/John-117, T. Hood, Shepard, D. Udina
Galactic Conflicts: Tales of First Contact by TheDoctor1998 reviews
Humanity and its allies have stood strong after the Great War with the Covenant. Follow the Systems Alliance as it goes through a first contact nearly as disastrous as the one that lead to the Great War.
Rated: M - English - Sci-Fi - Chapters: 7 - Words: 31,765 - Reviews: 139 - Favs: 315 - Follows: 454 - Updated: 1/14 - Published: 2/6/2023
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: 10 - Words: 87,307 - Reviews: 158 - Favs: 409 - Follows: 602 - Updated: 12/26/2023 - Published: 10/8/2020 - T. Hood, Shepard, Councilor Tevos, Benezia
New Era II by martinantab reviews
The war has ended and UNSC/UEG can finally start with rebuilding. Former Covenant races created new alliance to prevent another big war. Everybody thought that they can live peacefully, but few years later UNSC Gargantua has discovered mysterious object in the Orion's arm and no one is sure, if everything will be the same again.
Rated: M - English - Adventure/Humor - Chapters: 5 - Words: 33,264 - Reviews: 45 - Favs: 195 - Follows: 288 - Updated: 12/11/2023 - Published: 10/28/2023 - Master Chief/John-117, T. Lasky, Councilor Tevos, Councilor Valern
The Sins of our Fathers by MarkerMagnum reviews
Unknown to the Citadel Council, the Human-Covenant war nears its vicious end. Miranda Keyes is seconds too slow. Delta Halo fires, leaving UNSC space as a lifeless snapshot in time. The Citadel must morn the loss of a civilization they never knew.
Rated: T - English - Drama/Sci-Fi - Chapters: 11 - Words: 108,395 - Reviews: 487 - Favs: 1,386 - Follows: 1,882 - Updated: 12/7/2023 - Published: 2/11/2023 - Cortana, Councilor Valern, Councilor Tevos, Councilor Sparatus
Mass Effect: Halo Codex Version by Vulture Electra reviews
What would happen if the universes of both Halo, Mass Effect, and Avatar(James Cameroon) were combine into one universe. What would happen had Halo Humanity had an earlier first contact rather than their first contact being with the Covenant. How would things played out, find out in this fanfic called Mass Effect: Halo.
Rated: M - English - Adventure/Sci-Fi - Chapters: 1 - Words: 1,200 - Reviews: 1 - Favs: 18 - Follows: 20 - Published: 12/1/2023
Massive Reckoning: Interstellar Assualt by vmoneywashere reviews
In the 2700s, the Milky Way is flourishing. Access to Forerunner ruins has allowed the races of the galaxy to explore their home and new galaxies. Now, a new fleet, lead by an Ancient Punic Class Fleet Carrier, is moving to explore a new galaxy. Soon enough, the UNSC will find itself embroiled in a new Great War, with a few standing in the way of mass extinction. (slow updates)
Rated: K+ - English - Sci-Fi - Chapters: 2 - Words: 15,005 - Reviews: 25 - Favs: 158 - Follows: 230 - Updated: 11/30/2023 - Published: 10/9/2023 - P. Cole, OC, Admiral Hackett, Shepard
The Man, The Myth, The Legend by Grocamol reviews
A simple one shot fic I had made some time ago, time to share it. Enjoy!
Rated: M - English - Chapters: 1 - Words: 6,995 - Reviews: 10 - Favs: 38 - Follows: 26 - Published: 11/11/2023 - A. J. Johnson - Complete
All the Stars by BlueWay reviews
When the Long Night of Solace is evaporated over Reach via the weaponized usage of a Slipspace Drive, it ferries with it in its swallowed sections the Covenant Empire and, more horrifyingly, the desperate measures that the UNSC used to fight them. When they are found in a universe on the precipice of their own history, the meaning of the term "Mass Effect" will change forever.
Rated: T - English - Sci-Fi/Adventure - Chapters: 46 - Words: 802,179 - Reviews: 1340 - Favs: 1,908 - Follows: 2,283 - Updated: 11/9/2023 - Published: 6/8/2018 - SPARTAN-B312/Noble Six, Rookie, Shepard
Buzzard Buccaneer Radio by General Rage reviews
Boz the Buzzard hosts this pirate radio station, beaming out music to the Normandy, Fallen Serpent, Crusty Chorka and Ascendant Justice non-stop. BBR has only one mission, to keep Rock n Roll alive in the dark void of outer space. A companion story to "Remnants" that shows what happens while Shepard is off playing hero. Part of the Wormhole Chronicles Saga.
Rated: M - English - Humor/Sci-Fi - Chapters: 11 - Words: 84,796 - Reviews: 98 - Favs: 97 - Follows: 110 - Updated: 10/29/2023 - Published: 9/21/2016 - OC
Remnants by General Rage reviews
From Halo's ashes, a mismatched Alliance is born. UNSC soldiers now serve alongside both Batarian deserters and shifty Jackal Space Pirates. Now Shepard and Master Chief have to keep these strange bedfellows from killing one another before they can stop an emergent new threat to the galaxy. The Next Swashbuckling Chapter of the Wormhole Chronicles.
Rated: M - English - Adventure/Sci-Fi - Chapters: 41 - Words: 863,240 - Reviews: 829 - Favs: 486 - Follows: 560 - Updated: 10/28/2023 - Published: 4/22/2016 - Master Chief/John-117, Cortana, Tali'Zorah, Shepard
Halo: Wormholes by TimeTraveller-1900 reviews
In this series of one-shots which is set in an alternative universe where the human race discovers how wormholes work. Suddenly human explorers and expeditions are travelling from one planet to another, from one solar system to the next, without spaceships. How will humanity cope with enemies within? How will they cope with the Citadel? More importantly, what about the Covenant?
Rated: M - English - Adventure/Sci-Fi - Chapters: 2 - Words: 1,895 - Reviews: 2 - Favs: 33 - Follows: 42 - Published: 10/25/2023 - Master Chief/John-117, C. Halsey, Kelly-087, Admiral Hackett
New era by martinantab reviews
THIS STORY IS PAUSED, I SHOULD CONTINUE I. FUTURE OR I WILL COMPLETELY REWRITE THIS STORY, DUE TO GRAMMAR ISSUES AND I THINK I RUSHED IT. BUT THANKS FOR THE REVIEWS, IT HELPED ME A LOT. I WILL PROPABLY REWRITE THE STORY AGAIN.
Rated: M - English - Adventure/Humor - Chapters: 4 - Words: 8,625 - Reviews: 12 - Favs: 41 - Follows: 59 - Updated: 10/25/2023 - Published: 10/6/2023 - T. Hood, Master Chief/John-117, Councilor Sparatus, Councilor Tevos
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: 4 - Words: 7,562 - Reviews: 35 - Favs: 176 - Follows: 325 - Updated: 10/14/2023 - Published: 11/26/2022 - Master Chief/John-117, Cortana, Shepard
Were it So Easy by Sigma0327 reviews
Six's life was a giant war. Every battle was a test of sheer tenacity and stubbornness against insurmountable odds. Every moment, every bullet fired, every Covenant, Insurrectionist, and Flood spore killed has led up to his last fight. Once again he was one of the few that stood between Earth and her enemies. This would be his final battle, and nothing could change that, right?
Rated: M - English - Adventure/Sci-Fi - Chapters: 11 - Words: 157,359 - Reviews: 219 - Favs: 1,007 - Follows: 1,428 - Updated: 9/17/2023 - Published: 11/9/2020 - SPARTAN-B312/Noble Six, Tali'Zorah, Miranda L., Shepard
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.
Rated: T - English - Sci-Fi/Adventure - Chapters: 17 - Words: 90,290 - Reviews: 645 - Favs: 1,962 - Follows: 2,894 - Updated: 9/16/2023 - Published: 7/26/2019 - Master Chief/John-117, Cortana, Zaeed M., OC
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