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The Reclamation has already begun by
Fade Maybe reviews
The Citadel Council and the Systems Alliance fight for survival against the Reaper onslaught. However, the UNSC, politically divided and still recovering from the Didact's assault discovers a Mass Relay that will force them into the fight and change the course of galactic history forever. The Reclamation has already begun, and we are hopeless to stop it. ME3/post Halo 4
Crossover - Halo & Mass Effect - Rated: T - English - Adventure/Sci-Fi - Chapters: 36 - Words: 355,591 - Reviews: 1081 - Favs: 1,192 - Follows: 1,549 - Updated: 8/23 - Published: 3/13/2013
Effects of a Titan by
greeneman42 reviews
A small salvage ship comes across an interesting find while searching. Set before Halo 4 and before ME 2
Crossover - Halo & Mass Effect - Rated: T - English - Adventure/Sci-Fi - Chapters: 28 - Words: 197,715 - Reviews: 943 - Favs: 1,490 - Follows: 1,962 - Updated: 8/21 - Published: 11/26/2013 - Master Chief/John-117, Cortana, Shepard (F)
Circuitry by
obliviousbushtit reviews
Redemption: a notion all too unrealistic to attain. Thel 'Vadam was well aware the first time the Gravemind drilled it into his head. Through unthinkable circumstances, the Arbiter and Master Chief are displaced to a reality not of their own. Unwittingly the master of the Reapers or not, Thel must find within him the ability to atone. And a certain Quarian might be able to help...
Crossover - Halo & Mass Effect - Rated: T - English - Adventure/Friendship - Chapters: 17 - Words: 51,535 - Reviews: 49 - Favs: 145 - Follows: 231 - Updated: 8/19 - Published: 4/6 - Master Chief/John-117, Arbiter, Tali'Zorah, Legion
Once a Rookie, Always a Rookie by
Twisted Fate MK 2 reviews
(Credit to Adrasos on Archive and his story, Prepare to Drop, for the idea.) On the way down to New Mombasa, Rookie falls into the Slipspace Rupture and ends up crashing down on Menae, high above Palaven, while Shepard tries to find and rescue the new Primarch. From there, the war itself will shift and the fighting persists, but who knows what an ODST will add to the mix.
Crossover - Halo & Mass Effect - Rated: T - English - Adventure - Chapters: 29 - Words: 152,438 - Reviews: 242 - Favs: 493 - Follows: 778 - Updated: 8/17 - Published: 9/27/2018 - Rookie, Shepard (F)
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: 366 - Favs: 864 - Follows: 1,276 - Updated: 8/7 - Published: 12/27/2018 - Master Chief/John-117, Arbiter, Shepard (F), Councilor Tevos
To Infinity by
creamofwheat2311 reviews
After discovering an ancient artifact, the UNSC's most advanced warship and a Sangheili Assault Carrier are transported to a universe unlike anything they have ever seen, and forced into a war against a foe they never could have imagined.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 46 - Words: 390,407 - Reviews: 3553 - Favs: 4,073 - Follows: 4,888 - Updated: 7/25 - Published: 10/9/2013 - Master Chief/John-117, Arbiter, T. Lasky, Shepard (M)
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: 2,434 - Follows: 3,100 - Updated: 7/12 - Published: 11/30/2015 - Master Chief/John-117, OC, Shepard (F)
The Witcher: A Different Kind Of Wolf by
SSJ Lone Wolf reviews
Noble Six expected to die alone of Reach after he had watched his team be picked off one by one and after delivering the package; alas fate has other ideas when he is rescued by a Forerunner Monitor. after being given a well needed upgrade and his first A.I partner, Six finds himself transported to a world where Elves, Witches and monsters are an every day occurrence.
Crossover - Halo & Witcher - Rated: M - English - Chapters: 2 - Words: 12,176 - Reviews: 88 - Favs: 316 - Follows: 375 - Updated: 7/10 - Published: 3/9/2017 - [SPARTAN-B312/Noble Six, Triss Merigold] Geralt of Rivia
Star Wars: Halo at war by
reza0807 reviews
Darth Sidious, emperor of the Galactic Empire, used his foresight along with his cunning mind to rise to power. His visions allowed him to eliminate any threat to his rule. Now the Dark Side whispers of a weakened yet worthy foe in a neighboring galaxy. The war machine of the Empire is now giving its undivided attention to the UEG and its protector the UNSC. A new war has begun...
Crossover - Star Wars & Halo - Rated: T - English - Adventure/Sci-Fi - Chapters: 18 - Words: 180,157 - Reviews: 275 - Favs: 324 - Follows: 397 - Updated: 7/4 - Published: 6/27/2017 - Darth Vader, E. Palpatine, Master Chief/John-117, T. Lasky - Complete
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: 983 - Follows: 1,431 - Updated: 6/27 - Published: 2/28/2018
Heroes and Soldiers by
Captin Morgan92 reviews
Master Chief, The rookie, Dutch, Buck, Romeo, Avery and Miranda Keyes arrive in the Marvel Universe in the recently upgraded Forward Unto Dawn. They discover super heroes, The Avengers, and S.H.I.E.L.D on this Earth. They do their best to adjust to the new time period and do the universe some good during their unplanned stay. If it means fighting along Earth's mightiest heroes...
Crossover - Marvel & Halo - Rated: M - English - Adventure/Sci-Fi - Chapters: 9 - Words: 103,374 - Reviews: 123 - Favs: 312 - Follows: 334 - Updated: 6/24 - Published: 9/18/2016 - Nick Fury Jr., Master Chief/John-117, A. J. Johnson, Rookie
Mass Effect: The New Journey by
Arashi the Solar Phoenix reviews
During a Joint Deployment, the UNSC Infinity and Her Sangheili allies are suddenly thrown into a new Galaxy, and end up near Charon before the Systems Alliance discovers the Charon Relay. Alliances are forged and how will the galaxy react to an aggressive humanity that not only doesn't use Mass Effect technology, but will not let anyone stand in their way of expansion? AU PreME1
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 20 - Words: 190,674 - Reviews: 1324 - Favs: 2,207 - Follows: 2,699 - Updated: 6/11 - Published: 1/26/2014
United we Stand by
Mayto reviews
At the height of the Human Covenant war, another galactic power intervenes to aid the embattled humans. Standing side by side with the Turians, the UNSC prepares for a new phase of the Human Covenant war.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 31 - Words: 84,861 - Reviews: 302 - Favs: 376 - Follows: 558 - Updated: 6/1 - Published: 3/26
The Spartan Effect by
Gatekeeper333 reviews
Everyone's favorite Spartan is looking for a new purpose, lucky for him, the Commander his happy to oblige. (5-23-19 Info: On Hiatus after Chapter 45. Will update with schedule after life is in order.)
Crossover - Halo & Mass Effect - Rated: T - English - Chapters: 45 - Words: 495,928 - Reviews: 1673 - Favs: 2,359 - Follows: 2,923 - Updated: 5/23 - Published: 3/27/2011 - Master Chief/John-117, Tali'Zorah, Miranda L., Shepard (M)
HALO Mass convergence by
SapphireDawn11709 reviews
Two Universe collide after the Forerunners fall and the Reapers return, will the two branches of Humanity placed in their respective Systems by a Forerunner Monitor unite or fall, only time will tell in this epic clash. When the UNSC Exploration and Research Vessel Light of Sol discover a strange artifact, they are opened up to the rest of the Galaxy after millennia of isolation.
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi - Chapters: 22 - Words: 75,292 - Reviews: 271 - Favs: 519 - Follows: 692 - Updated: 5/23 - Published: 9/18/2016 - Master Chief/John-117, Cortana, Shepard (F), Tali'Zorah
Element Halo by
Iron Warriors reviews
When we started to expand past the Orin Arm of the Milkyway, we didn't know what to expect. Once we were out there though, things changed big time. For those brief 30 years we were the top dogs of the galaxy in all powers but like always when humanity reaches a higher seat of power, something always comes to make us fall... This time however the fall will cost our entire race.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 23 - Words: 82,562 - Reviews: 225 - Favs: 445 - Follows: 667 - Updated: 5/20 - Published: 12/11/2017 - OC
The Greatest Prison by
evevee reviews
Tracer never talked about her time as a lost soul. She's known now as the excitable Brit, the puppy of Overwatch, the fearless point on any offensive. Winston had always suspected some form of trauma, and Widow had proved that at King's Row. Unbeknownst to all, her true terror approaches, and as one wise man once said, "If you were his enemy...may god help you."
Crossover - Halo & Overwatch - Rated: M - English - Sci-Fi/Adventure - Chapters: 12 - Words: 60,651 - Reviews: 163 - Favs: 624 - Follows: 938 - Updated: 5/12 - Published: 9/12/2016 - Master Chief/John-117, Arbiter, Amélie L./Widowmaker, Lena O./Tracer
The Covenant's Mistake by
336 reviews
The Covenant fear Demons, and Demons fear Doomguy.
Crossover - Doom & Halo - Rated: T - English - Sci-Fi/Horror - Chapters: 9 - Words: 25,837 - Reviews: 112 - Favs: 281 - Follows: 352 - Updated: 3/31 - Published: 10/15/2017 - Doomguy, Master Chief/John-117
The Lone Wolf Of The Normandy by
SSJ Lone Wolf reviews
Lieutenant Spartan Beta 312, otherwise known as Noble Six after managing to survive the fall of Reach is upgraded with Forerunner augmentations, armor, weapons and his first A.I partner is transported to a planet known as Eden Prime. A Systems Alliance colony that just happens to be under attack...well like Carter said wouldn't be a Noble mission if it were easy.
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 8 - Words: 60,035 - Reviews: 927 - Favs: 1,224 - Follows: 1,534 - Updated: 3/29 - Published: 8/9/2016 - SPARTAN-B312/Noble Six, Shepard (F)
The Ultimate Warrior by
long night of solace reviews
Humanity is an impressive inter-galactic empire at tier-0 level. When John-117, their military commander engages an unknown enemy, he and Cortana in a fortress ship, Labyrinth of Chaos were displaced into an alternate universe with things beyond imagination. He needs to team up with the Marvel heroes to solve a mystery that might threaten the whole universe.
Crossover - Marvel & Halo - Rated: T - English - Sci-Fi/Adventure - Chapters: 6 - Words: 83,996 - Reviews: 93 - Favs: 246 - Follows: 270 - Updated: 3/22 - Published: 12/11/2017 - T. Stark/ Iron man, Master Chief/John-117
The Fighting Spirit by
smart grid reviews
Spartans never die, they say. When Jorge gave his life to save his home planet of Reach, he never imagined that he would survive. But now he finds himself neck deep in the troubles of another universe; he will do what he has been trained to do, what all Spartans do best: fight.
Crossover - Halo & Mass Effect - Rated: T - English - Adventure - Chapters: 40 - Words: 176,374 - Reviews: 778 - Favs: 1,273 - Follows: 1,278 - Updated: 3/4 - Published: 12/1/2011 - Jorge-052/Noble Five, Shepard (F) - Complete
The Spartan Crew Member by
Daisy Rhine reviews
Commander Shepard and his crew find the other half of the ship that MC is on. When they find him they have no idea what they should expect but an chemically suped up human was not one of them. I don't own Halo or Mass Effect 343industries and BioWare do.
Crossover - Halo & Mass Effect - Rated: T - English - Friendship/Adventure - Chapters: 34 - Words: 68,309 - Reviews: 197 - Favs: 290 - Follows: 393 - Updated: 3/3 - Published: 8/14/2017 - Master Chief/John-117, Garrus V., Tali'Zorah, Shepard (M)
The Dragon Queens by
Mystborn reviews
Prophesies complete, an immortal Dragonborn and her vampire best friend are left to their own devices. The result? A jointly ruled empire of Nirn that spans the stars. So when Batarians are chased through relay 314 by the Turians into Imperial space, all oblivion breaks loose. How will the Galaxy of Science hold up to the Empire of Magic, Especially one ruled by the Dragon Queens?
Crossover - Elder Scroll series & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 26 - Words: 122,277 - Reviews: 647 - Favs: 2,035 - Follows: 2,487 - Updated: 2/27 - Published: 2/28/2015 - Dragonborn/Dovahkiin, Serana, Shepard (F)
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.
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi - Chapters: 20 - Words: 225,409 - Reviews: 1316 - Favs: 2,099 - Follows: 2,779 - Updated: 2/21 - Published: 2/21/2017 - Master Chief/John-117, Cortana, Shepard (F), Garrus V.
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: 1,211 - Updated: 1/29 - Published: 3/1/2014
The Unknown Defender by
Gabenator5 reviews
While Shepard is closing in on Saren. Stories begin to spread among the pirates and slavers of the galaxy. Rumors of a nameless fear, of a creature, a demon wreathed in green armor. It and its allies appear from nowhere slughtering all who oppose them, then vanish without a trace. What is the purpose of this unknown faction... and what will they do next?
Crossover - Halo & Mass Effect - Rated: T - English - Adventure/Sci-Fi - Chapters: 17 - Words: 115,734 - Reviews: 1005 - Favs: 2,630 - Follows: 3,438 - Updated: 1/13 - Published: 9/27/2016 - Master Chief/John-117, Cortana, Shepard (F), Tali'Zorah
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: 3865 - Favs: 3,810 - Follows: 3,839 - Updated: 12/31/2018 - Published: 5/2/2010 - Master Chief/John-117
Halo: Rise of the Empire by
theotherpianist reviews
After the end of the Great War Humanity thought they were done fighting. They were wrong. When a operation to find two UNSC distress signals is launched, a galaxy suddenly becomes entangled in a war they never wanted to fight, be in, or witness: the dramatic power play that was the Clone Wars. Amidst the conflict, one Spartan's legacy and story will begin in a galaxy far, far away.
Crossover - Star Wars & Halo - Rated: T - English - Chapters: 28 - Words: 257,094 - Reviews: 457 - Favs: 567 - Follows: 662 - Updated: 12/30/2017 - Published: 3/16/2014 - Anakin Skywalker, Obi-Wan K., SPARTAN-B312/Noble Six, OC
Halo: A Galaxy Divided by
RevengeS197 reviews
When Halo fired it shook itself to pieces, the portal collapsed as Master Chief made it through the portal but what he didn't know is that when the portal was collapsing he was ripped into another Galaxy far, far away. a Star wars the Clone Wars Crossover. Master Chief is not going to be a Jedi to let all the readers know.
Crossover - Star Wars & Halo - Rated: T - English - Sci-Fi/Adventure - Chapters: 17 - Words: 62,176 - Reviews: 395 - Favs: 834 - Follows: 1,017 - Updated: 10/27/2017 - Published: 9/5/2014 - OC, Master Chief/John-117, Cortana
HaloHazard by
Hyperwryter88 reviews
John-117, Cortana, Thel Vadam, UNSC marines, Elites and Brutes crash land on 20th century Earth in Raccoon City and deal with the 1998 T-virus outbreak until they can return to the 26th century. Halo and Resident Evil xover. Language and violence. BACK IN PRODUCTION AND WORKING ON NEW CHAPTER NOW. BE PATIENT.
Crossover - Resident Evil & Halo - Rated: M - English - Sci-Fi/Horror - Chapters: 19 - Words: 220,335 - Reviews: 180 - Favs: 272 - Follows: 244 - Updated: 8/22/2017 - Published: 12/16/2010 - Leon S. K., Claire R., Master Chief/John-117, Arbiter
The Arbiter's Shout by
ThatEliteGuy reviews
But. There is one they fear. In their tongue he is 'Dovahkiin' - Dragonborn.
Crossover - Halo & Elder Scroll series - Rated: M - English - Sci-Fi/Fantasy - Chapters: 32 - Words: 107,812 - Reviews: 139 - Favs: 154 - Follows: 183 - Updated: 6/21/2017 - Published: 6/20/2014 - [Arbiter, Lydia] [Master Chief/John-117, Serana]
Mirrored Fates by
long night of solace reviews
After the defeat of the didact, the galactic hero of the halo universe - Masterchief and his loyal blue team members embark on a strange new journey to an unknown universe in which later they come into contact with that universe's hero - Commander Shepard. Facing an unknown enemy, fighting a new war, its up to the heroes to save the day together.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 19 - Words: 171,269 - Reviews: 144 - Favs: 328 - Follows: 389 - Updated: 5/8/2017 - Published: 5/3/2016 - Master Chief/John-117, Cortana, Admiral Hackett, Shepard (M)
Skyrim: Noble Two's Journey by
ARC N7 reviews
In 2546 Spartan-III Beta-320 was reported MIA, after Operation Stortebecker. The UNSC Charon-Class Frigate "Bolivar" was hit by a Plasma Torpedo while entering a Slipspace. B-320 was presumed dead and declared MIA. However, she managed to live up to the Spartans' reputation and survived to find herself in a strange world.
Crossover - Halo & Elder Scroll series - Rated: T - English - Adventure/Sci-Fi - Chapters: 3 - Words: 13,083 - Reviews: 24 - Favs: 59 - Follows: 102 - Updated: 2/12/2017 - Published: 11/1/2015 - Catherine-B320/Kat/Noble Two, Tullius, Lydia, Hadvar
Halo: Awakening by
De4thknight reviews
Master Chief and Cortana ends up being caught in the center of a fight between the UAC on planet Argent and the Covenant Remnants, leading the covenant here by a being disguised as a Promethean who wishes to get to this planet and reach to this gate which might end up bringing hell to both races. If Chief doesn't stop him then he will bring an army worst than the Flood.
Crossover - Doom & Halo - Rated: T - English - Supernatural/Horror - Chapters: 13 - Words: 39,734 - Reviews: 19 - Favs: 31 - Follows: 25 - Updated: 12/10/2016 - Published: 10/9/2016 - Master Chief/John-117, SPARTAN-B312/Noble Six, Rookie, OC - Complete
The Sum is Greater than its Parts by
Maersikai reviews
Having long since combined forces, a fleet of the Humans and Covenants finest are torn from the universe they know to be thrown in to a strange and desolate reality. They will strive to uphold the Mantle against the Mass Effect's most Ancient Enemy. Will they break the cycle?
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 19 - Words: 181,564 - Reviews: 341 - Favs: 1,027 - Follows: 1,260 - Updated: 11/26/2016 - Published: 3/2/2015 - Cortana, Shepard (F)
The Halo Effect by
Agentweapon Proelium-Tempus reviews
The UNSC dispatches a small task force to investigate an artefact with origins not of the Orion Arm. The Citadel Races, including the Systems Alliance, are in for an eye opener when two new players in galactic prowess are not only technologically superior but also not bound by the Element Zero and its constraints. Rated T for reasons. AU in both Halo and ME events.
Crossover - Halo & Mass Effect - Rated: T - English - Adventure/Humor - Chapters: 16 - Words: 50,729 - Reviews: 373 - Favs: 1,220 - Follows: 1,551 - Updated: 9/26/2016 - Published: 8/6/2015 - Master Chief/John-117, OC, Shepard (F)
Infinity by
casquis reviews
Space is infinite, but under the right conditions even a galaxy can feel too small.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 8 - Words: 51,961 - Reviews: 253 - Favs: 379 - Follows: 534 - Updated: 8/19/2016 - Published: 10/12/2015
Mass Effect: Clash of Civilizations by
Eterna1Soldier reviews
In 2157 a Citadel Council exploratory vessel is tasked with opening a dormant Relay into unknown regions of the galaxy. What they find is something they never expected. What happens when two civilizations centered around different technologies clash?
Crossover - Halo & Mass Effect - Rated: T - English - Adventure/Mystery - Chapters: 21 - Words: 96,812 - Reviews: 3394 - Favs: 5,052 - Follows: 5,933 - Updated: 5/22/2016 - Published: 10/13/2011 - Tali'Zorah
Mass Effect: Contact by
FuzyDr4G0NZ reviews
In 2560, just years after the end of hostilities between the Earth based UNSC and the New Colonial Alliance, the Industrial colony of Falkland is slowly being turned into a Fortress as a defense against the perceived Colonial threat. But within months of his transfer to the colony, Lance Corporal David Campbell will find out first hand whether or not the fortress will hold.
Crossover - Halo & Mass Effect - Rated: T - English - Adventure/Sci-Fi - Chapters: 18 - Words: 60,226 - Reviews: 214 - Favs: 301 - Follows: 396 - Updated: 2/3/2016 - Published: 5/8/2014 - OC
Land of Heroes by
Harbinger Of Kaos reviews
This is my attempt at Halo cross, please respect the fact that i am not entirely familiar with this universe, in which universe Marvel or DC it begins in is entirely up to me and you, so with that said lets begin, there will be strong language and gore.
Crossover - Marvel & Halo - Rated: M - English - Adventure/Sci-Fi - Chapters: 16 - Words: 215,322 - Reviews: 683 - Favs: 1,201 - Follows: 1,110 - Updated: 8/20/2015 - Published: 12/15/2010 - Master Chief/John-117
Conquerors they Rise by
JoeTheHighlord reviews
The year is 2650, nearly a century since the end of the Great War and the fall of the Covenant Hegemony. In that time great advances have been made in both technology and society, and the new government of the New Species Alliance enters a golden age. But, there are dark stirrings out in the vastness of space and soon Conquerors must rise again from the ashes of war.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Suspense - Chapters: 13 - Words: 74,202 - Reviews: 423 - Favs: 716 - Follows: 898 - Updated: 7/2/2015 - Published: 7/16/2013 - T. Hood
Lost Legacy by
Andrithir reviews
There are stories about them, myths and legends of once majestic species overseeing the galaxy and exploring into the space that lay beyond. There were stories about them, tales of faded past. Humanity's missing link. (Rewrite Chapters 1 to 3 now posted) COMPLETED. Rewrites are on hiatus.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 67 - Words: 328,897 - Reviews: 1631 - Favs: 1,419 - Follows: 1,319 - Updated: 2/20/2015 - Published: 10/8/2011 - Master Chief/John-117, Shepard (F) - Complete
Noble Spartans, Noble Heroes by
free man writer reviews
A new team arrives in the Marvel universe. as they arrive new and more large scale plans begin to unfold from both universes, pushing this team to new breaking points. will they hold on or is this their final mission as Spartans. Dark World Arc right now, next up, Winter Soldier. Oh and abandoned, sorry dudes
Crossover - Marvel & Halo - Rated: M - English - Sci-Fi/Adventure - Chapters: 18 - Words: 253,059 - Reviews: 411 - Favs: 543 - Follows: 484 - Updated: 2/19/2015 - Published: 2/21/2013 - Master Chief/John-117, Cortana, Carter-A259/Noble One, SPARTAN-B312/Noble Six
In Infinitum: First Contact by
Victor Weiss reviews
In the year of 2581 the UNSC stumbles across a discovery hidden beneath their noses and now a new gateway to life outside of the Forerunner space is opened and with it comes all new challenges and rewards. Its time for First Contact. OC centric, some world building as needed and war. Lots and lots of war. Rated T for blood, language, violence and gore.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Suspense - Chapters: 27 - Words: 149,945 - Reviews: 961 - Favs: 1,181 - Follows: 1,473 - Updated: 1/23/2015 - Published: 9/19/2013
The Onyx Stars by
The Hidden Sith reviews
A lost ship, a lost warrior, and a lost mind find themselves stranded in an unknown world. Full of vast wonders, threats, and opportunities, this new world is an unknown element for a crew accustomed to war and hardship. But, all Edens fall and beyond the embers of war lay the dawn of victory. Halo/Mass Effect AU John/Cortana, Lasky/Palmer
Crossover - Halo & Mass Effect - Rated: T - English - Adventure - Chapters: 16 - Words: 143,775 - Reviews: 470 - Favs: 800 - Follows: 936 - Updated: 1/22/2015 - Published: 12/9/2012 - Master Chief/John-117
Lord of the Rings: The Spartan Prophecy by
So-Pro Warrior reviews
It has been four years since the Battle of the Ark. The Forward Unto Dawn crash lands onto a unknown world and onboard the Dawn. The SPARTAN John-117 better known as Master Chief awakens from his sleep. He soon finds himself on a strange new world with only his old AI partner Cortana by his side. However he will soon discover that it was not chance that brought him here. But fate.
Crossover - Lord of the Rings & Halo - Rated: T - English - Adventure/Sci-Fi - Chapters: 18 - Words: 131,910 - Reviews: 218 - Favs: 450 - Follows: 326 - Updated: 9/6/2014 - Published: 4/7/2013 - Aragorn, Master Chief/John-117 - Complete
The Star and the Spartan by
Composer777 reviews
There's an old saying amongst the UNSC: "Spartans never die. If they disappear, they're just missing in action!" Everyone on planet earth knows this is a lie, but find comfort in it regardless. Content to believe that immortal guardians are watching over them. And in time, a rag-tag group of beings will see that man is capable of things they could never have imagined possible.
Crossover - Lord of the Rings & Halo - Rated: T - English - Adventure/Friendship - Chapters: 26 - Words: 96,915 - Reviews: 80 - Favs: 246 - Follows: 178 - Updated: 7/20/2014 - Published: 9/30/2013 - Frodo B., Boromir, Master Chief/John-117 - Complete
Halo: The Human Effect by
MJOLNIR117 reviews
Following the Human-Covenant War, Humanity finds a buried device that allows trans-galactic travel far faster than Slipspace. It was heralded as the greatest scientific find in Human history; the rest of the galaxy simply calls it the Mass Effect. Now mankind needs to forge a new place for itself among the stars.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 20 - Words: 67,131 - Reviews: 441 - Favs: 660 - Follows: 778 - Updated: 3/27/2014 - Published: 7/12/2010
Coming of the Ancients by
Shadowz081 reviews
Centuries after the end of the great war, the UNSC and Neo-covenant now live in peace, but what happens when they discover not just one but two splinter fraction of humans? The System Alliance and their Citadel and Prehistoric humanity and their old allies. But with their welcoming appearance, so will ancient threats loom around the corner ready to wage war...
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 7 - Words: 74,425 - Reviews: 287 - Favs: 617 - Follows: 673 - Updated: 1/4/2014 - Published: 9/19/2012
Halo: A New Age by
xpredatorx reviews
In the 26th century humanity along with the sangheili, san'shyuum formed the Orion Systems Alliance the center of galactic government in the orion arm of the galaxy, soon the OSA will meet the citadel council and discover a billion year old secret.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Suspense - Chapters: 34 - Words: 225,340 - Reviews: 722 - Favs: 798 - Follows: 772 - Updated: 10/7/2013 - Published: 3/24/2012
Brothers in Steel by
Gehenna79 reviews
The Master Chief finds himself in the world of Mass Effect. This is my attempt at bridging two things I love and fixing the ending of Mass Effect 3. Complete.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Fantasy - Chapters: 53 - Words: 95,511 - Reviews: 316 - Favs: 256 - Follows: 267 - Updated: 10/2/2013 - Published: 4/17/2012 - Master Chief/John-117, Shepard (M) - Complete
Halo: First Contact by
FuzyDr4G0NZ reviews
An Asari Deep space exploration craft discovers an unknown wreck in space, meanwhile the UNSC Gorgon is sent out on a scouting mission into the lost outer colonies.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 16 - Words: 62,980 - Reviews: 481 - Favs: 652 - Follows: 867 - Updated: 8/26/2013 - Published: 12/19/2012
Halo: The Empyrean Effect by
Vizantir reviews
What if humanity has a much grander destiny than anyone has ever even imagined? They need only to discover the secret, buried for eons uncounted. Rated T for battle scenes and thematic content. Features many OC's. Warning: This fic is EXTREMELY AU. - FULL REVISION IS BEING PLANNED
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 11 - Words: 67,716 - Reviews: 222 - Favs: 293 - Follows: 368 - Updated: 5/11/2013 - Published: 9/3/2012
Master Chief and the Order of the Phoenix by
LordCaldrin45 reviews
It's been four years since Master Chief escaped the explosion of Halo. The wreckage of the Forward Unto Dawn went through a black hole, teleporting Master Chief and Cortana to back to 1995 Earth and crash land in England, where Harry Potter is taking his fifth year. A new adventure is about to begin. Review!
Crossover - Harry Potter & Halo - Rated: T - English - Chapters: 10 - Words: 19,003 - Reviews: 242 - Favs: 296 - Follows: 385 - Updated: 5/7/2013 - Published: 7/16/2012 - Harry P., Master Chief/John-117
My Little Halo: Harmony Evolved by
Arcane Howitzer reviews
When a Top Secret package activates on board the UNSC Cruiser Guam, turning the entire crew into ponies, it sets on coarse a collision of universes, ideologies, and forces that could save humanity in their darkest hour, or doom peaceful Equestria to burn.
Crossover - My Little Pony & Halo - Rated: T - English - Sci-Fi/Fantasy - Chapters: 21 - Words: 85,786 - Reviews: 136 - Favs: 75 - Follows: 81 - Updated: 4/30/2013 - Published: 2/4/2012
HaloME: Era of Contravene by
Evident Disaster reviews
The Era of the Human Covenant War has ended, but the strife of a new age has dawned, now comes the threat from beyond and the chronicles of those who live in these troubled times. Chapter 26, the battle for Eta Halo has begun, the greatest battle since the time of the First Contact war has begun and all will decide the future of the galaxy. Updates have begun, CH22 has been edited.
Crossover - Halo & Mass Effect - Rated: T - English - Suspense/Sci-Fi - Chapters: 26 - Words: 173,424 - Reviews: 111 - Favs: 143 - Follows: 133 - Updated: 9/14/2012 - Published: 10/7/2011 - Arbiter, Shepard (M)
Mass Effect New Origins V2 by
erttheking reviews
On the dawn of the 27th century, the UNSC discovers a Mass Relay, and unlock its power. What follows not only includes making contact with new species and making new friends, but making new enemies as well, and the entire galaxy will shake.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Romance - Chapters: 109 - Words: 442,687 - Reviews: 2514 - Favs: 1,528 - Follows: 1,062 - Updated: 6/9/2012 - Published: 10/5/2010 - Shepard (F) - Complete
A New Age by
Sigma-del-Prisium reviews
The Human-Covenant War is over, and humanity is slowly recovering their strength. But unknown to them and their allies, their worlds will soon make contact with rest of the galaxy. First Time FanFiction. Please Enjoy. [ON HAITUS/REPLACEMENT GOING ON]
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 18 - Words: 73,443 - Reviews: 486 - Favs: 521 - Follows: 507 - Updated: 10/23/2011 - Published: 11/27/2010