Halo Crossovers
Filters
3.3K | « Prev Page 1 2 3 4 5 12 .. Last Next »

Halo Galactic Wars by Crimson Soldat reviews
While on a search mission within Zeta Halo, Master Chief and his new AI Companion stumbles upon an unknown site that isn't Forerunner in origins. Next thing they knew, both ends up in another Galaxy and are forced to partake in a war that they had found themselves in. With them and a few surprises, the known universe will never be the same ever again. Co-written by jojobinks01.
Crossover - Star Wars & Halo - Rated: T - English - Sci-Fi/Adventure - Chapters: 7 - Words: 41,936 - Reviews: 61 - Favs: 193 - Follows: 253 - Updated: 9/9 - Published: 6/30 - Anakin Skywalker, Obi-Wan K., Ahsoka T., Master Chief/John-117
naruto a halo reach story by dragons 23 reviews
naruto is left to die in the wood and is found by catherine and become spartan two
Crossover - Misc. Games & Halo - Rated: M - English - Romance - Chapters: 3 - Words: 3,933 - Reviews: 3 - Favs: 1 - Follows: 3 - Updated: 9/9 - Published: 9/3 - C. Halsey, Cortana
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.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 41 - Words: 710,406 - Reviews: 1151 - Favs: 1,574 - Follows: 1,925 - Updated: 9/8 - Published: 6/8/2018 - SPARTAN-B312/Noble Six, Rookie
No Gods, Nor Masters by Johnnieboy11 reviews
After the pyrrhic victory of the Human-Covenant War, the Covenant was split into many warring factions vying for the power of old. The UNSC was left, bloodied, but as the sole power in the Milky Way for now. After an incredible discovery within a set of Forerunner Ruins, an Exploration Fleet with Doctor Halsey at its head is sent out. What they find will change everything.
Crossover - Halo & Gate - Jietai Kare no Chi nite, Kaku Tatakeri - Rated: T - English - Adventure/Sci-Fi - Chapters: 28 - Words: 133,686 - Reviews: 571 - Favs: 812 - Follows: 1,052 - Updated: 9/8 - Published: 1/28 - C. Halsey, OC, Itami, Tyuule
Wolves That Walk Alone by TheManThatWalksTheAbyss115 reviews
There's always been growing legends in Remnant. Some of fearless warriors and others of horror, but there's one that's recently been picked up by the inhabitants. A legend of a man who was more akin to a wolf without a pack, barely speaking and doing his deed before leaving without a trace. After all... some people just want isolation rather than company.
Crossover - Halo & RWBY - Rated: M - English - Sci-Fi/Adventure - Chapters: 42 - Words: 340,385 - Reviews: 4435 - Favs: 3,389 - Follows: 3,938 - Updated: 9/7 - Published: 5/8/2019 - SPARTAN-B312/Noble Six, L. Ren, Nora V.
Agent Reach by One Winged A2 reviews
After the events of Lone Wolf, Noble Six wakes up aboard the Mother of Invention. He is offered a chance from the Director to become an agent of Project Freelancer. He takes it, but will the heart of a frozen warrior need help from another? Cover art is in-game footage.
Crossover - Halo & Red vs. Blue - Rated: M - English - Sci-Fi/Romance - Chapters: 80 - Words: 281,621 - Reviews: 685 - Favs: 889 - Follows: 901 - Updated: 9/7 - Published: 10/8/2014 - [SPARTAN-B312/Noble Six, Tex/Allison] Maine/Meta
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: 46 - Words: 668,658 - Reviews: 2372 - Favs: 3,609 - Follows: 4,394 - Updated: 9/7 - Published: 11/30/2015 - Master Chief/John-117, OC, Shepard
TALOS Protocol:A Tale of Smarts, Guns and Girls by Johnnieboy11 reviews
The detonation of the HAVOK nuke aboard the Mantle's Approach should have caused Cortana's glorious, final dispensation once the systems of the ship were broken. Instead, the AI now finds herself facing a new, terrifying world side-by-side with the Tactical Dolls, specialized combat Androids that take the form of armed young women. In this broken world, she must search for answers.
Crossover - Halo & Girls' Frontline/少女前线 - Rated: T - English - Adventure/Sci-Fi - Chapters: 5 - Words: 19,490 - Reviews: 39 - Favs: 159 - Follows: 218 - Updated: 9/6 - Published: 1/6 - Cortana, M4 SOPMOD II, Griffin Commander, Kalina
Lean, Green, and Very, Very Mean! by D. Christian reviews
The newest member of Alpha-Nine also known as the Rookie, had long since lost any hope along with her voice of humanity ever winning the war against the Covenant. Now Earth was under attack and the war seems all but lost. However, as fate may have it a mission gone wrong sends the Rookie to the most unexpected places. A place where a broken Helljumper like her could find purpose.
Crossover - Halo & RWBY - Rated: M - English - Sci-Fi/Adventure - Chapters: 7 - Words: 25,661 - Reviews: 40 - Favs: 137 - Follows: 199 - Updated: 9/5 - Published: 11/14/2021 - Rookie, Yang X.L., Team RWBY, Team JNPR
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?
Crossover - Halo & Mass Effect - Rated: M - English - Adventure/Sci-Fi - Chapters: 7 - Words: 76,632 - Reviews: 121 - Favs: 629 - Follows: 904 - Updated: 9/4 - Published: 11/9/2020 - SPARTAN-B312/Noble Six, Tali'Zorah, Miranda L., Shepard
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: 9 - Words: 138,118 - Reviews: 151 - Favs: 399 - Follows: 440 - Updated: 9/4 - Published: 12/11/2017 - T. Stark/Iron Man, Master Chief/John-117
HALO: Dead Man of the Moon by UH-60 NIGHTSTALKER reviews
When a new yet familiar Enemy threatens Neo-Queen Serenity and her court/friends, an unlikely ally appears and just happens to have a UNSC Warship at his command. But can Serenity's Senshi trust this new armored clad stranger?
Crossover - Halo & Sailor Moon - Rated: T - English - Adventure/Sci-Fi - Chapters: 13 - Words: 40,319 - Reviews: 74 - Favs: 101 - Follows: 115 - Updated: 9/4 - Published: 1/30/2021 - Neo-Queen Serenity, OC
Out of Reach by Czechus reviews
"Child out of time comes back home, by the wish of the goddess who wanted him to go. With the blood of worlds resting on his hands, monsters will hide from this man. The moon in the sky, and the luck on his side, fate will not be able to bind his life. Run and hide, oh monster about, but it doesn't matter for the wolf is out." I don't own PJO or Halo
Crossover - Halo & Percy Jackson and the Olympians - Rated: M - English - Sci-Fi/Fantasy - Chapters: 12 - Words: 97,722 - Reviews: 410 - Favs: 955 - Follows: 1,233 - Updated: 9/3 - Published: 6/28/2020 - SPARTAN-B312/Noble Six, Artemis
Unknown events have unmeasurable answers by El callampas reviews
When someone contacts the Quarians about old machinery, they should think twice before engaging with a strange yet so familiar species, a war, and circumstances that will shock two galaxies now that the rift is open.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Drama - Chapters: 16 - Words: 138,532 - Reviews: 290 - Favs: 390 - Follows: 574 - Updated: 9/3 - Published: 4/21 - [Master Chief/John-117, Tali'Zorah] J. Cutter
Project Atlas by Masso 2010 reviews
The Spartans are trained to be unthinking, unflinching and unmoving in the face of the impossible. Project Atlas is so much more, when humanity looks up into the sky they can see Hope, Justice, Reverence. When those that seek to hurt humanity look up into the sky, they see the warrior, the monster, the demon. To those who seek the destruction of humanity, he is the Cataclysm.
Crossover - Superman & Halo - Rated: M - English - Adventure/Sci-Fi - Chapters: 6 - Words: 47,385 - Reviews: 93 - Favs: 185 - Follows: 234 - Updated: 9/3 - Published: 4/17 - Clark K./Kal-El/Superman, Master Chief/John-117
Halo: Eagle's Incantation by GruntBasher reviews
Shirou and Artoria vowed to reunite as starcrossed lovers; this was not what they had in mind. Being reborn for some inextricable reason, they are flung to the far future. A world where technology has advanced leaps and bounds, a world without a need for heroes. Regardless, history must march on, and Fate has quite an interest in making some new heroes...
Crossover - Halo & Fate/stay night - Rated: T - English - Adventure/Sci-Fi - Chapters: 6 - Words: 23,820 - Reviews: 22 - Favs: 122 - Follows: 183 - Updated: 9/2 - Published: 8/11 - [Arturia Pendragon, Shirō E.] Rin T., Illyasviel von Einzbern
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.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 5 - Words: 19,095 - Reviews: 105 - Favs: 407 - Follows: 614 - Updated: 9/2 - Published: 12/26/2021 - OC, Tali'Zorah, Admiral Hackett, Rael'Zorah
Halo, Welcome to New York, Part 1: First Landing by SPARTAN-117-2 reviews
When Cortana awakens the slumbering Master Chief to alert him of a wormhole, a whole new war begins. Includes themes and characters from Harry Potter, Halo, Marvel, and some others.
Crossover - Harry Potter & Halo - Rated: T - English - Sci-Fi/Adventure - Chapters: 1 - Words: 3,398 - Reviews: 1 - Favs: 6 - Follows: 9 - Published: 9/2 - Harry P., Master Chief/John-117
The Furious Wolf by SSJ Lone Wolf reviews
Years after the Fall of Reach, Noble Six and Auntie Dot find themselves transported back to the early twenty-first century. But when everyone's favourite Lone Wolf crosses paths with Dominic and Mia Toretto, he finds himself becoming apart of their family regardless if he wants to or not. But the question remains, but the end what will remain...man or machine?
Crossover - Fast and the Furious & Halo - Rated: M - English - Chapters: 9 - Words: 58,173 - Reviews: 273 - Favs: 590 - Follows: 646 - Updated: 9/1 - Published: 10/27/2021 - [SPARTAN-B312/Noble Six, Mia]
Brotherhood of Steel:Chronicles of the 86th UNSC Assault Corps by Johnnieboy11 reviews
A veteran fleet formed of the few survivors of Reach goes missing upon their jump toward Earth. Originally meant to reinforce the Home Fleet with a slew of fresh units, the dozen vessels now find themselves over a foreign world engaged in a familiar war of survival with a rogue army of AI and their own prejudices against each-other. A new world to protect and new challenges await.
Crossover - Halo & 86 エイティシックス - Rated: T - English - Sci-Fi/Adventure - Chapters: 26 - Words: 230,000 - Reviews: 176 - Favs: 304 - Follows: 376 - Updated: 9/1 - Published: 11/1/2021 - OC, Vladilena Milizé/Lena, Shinei Nouzen, Theo Rikka
Harry-049 by TheEternalForce reviews
Harry is transported to Reach by a forerunner artefact after being chased by Dudley and his friends. Halsey finds that he's a genetic match and he is inducted into the SPARTAN-II program.
Crossover - Harry Potter & Halo - Rated: T - English - Sci-Fi - Chapters: 7 - Words: 8,045 - Reviews: 41 - Favs: 145 - Follows: 218 - Updated: 9/1 - Published: 4/26 - Harry P., C. Halsey
Code Lyoko: Dark Harvest by superman42 reviews
Following the cataclysmic event in Thousand year war that threw the Lyoko warriors 800 years into the future, a looming threat has begun to menace Kadic. The resulting war will change the lives of everyone involved and no one is safe. Universes: Halo, Code Lyoko, misc Very violent and depressing.
Crossover - Code Lyoko & Halo - Rated: M - English - Tragedy/Drama - Chapters: 7 - Words: 4,215 - Reviews: 7 - Favs: 3 - Follows: 2 - Updated: 8/31 - Published: 3/1 - Aelita S., Jeremie B., Yumi I., OC - Complete
Sins Of A Galactic Empire Reborn by zzzxxc1 reviews
When the Milky Way is revealed to the universe at large by a derelict CIS warship, the UEG are forced to become members of the transgalactic community, but its existence is soon threatened by the decline of the Republic, and the rise of an Empire. Adopted from SpaceCowboy2013.
Crossover - Star Wars & Halo - Rated: T - English - Sci-Fi - Chapters: 14 - Words: 101,192 - Reviews: 727 - Favs: 1,401 - Follows: 1,833 - Updated: 8/30 - Published: 7/28/2018 - Anakin Skywalker, Obi-Wan K., Master Chief/John-117, Cortana
Called of Duty Heroes: Nazi Zombies in Halo by Longneck Prime reviews
.
Crossover - Halo & Call of Duty - Rated: T - English - Adventure/Humor - Chapters: 1 - Words: 8,726 - Reviews: 2 - Favs: 1 - Follows: 1 - Published: 8/30 - Master Chief/John-117
Remnants of a Spartan Omakes by playererror404 reviews
Side stories From Remnants of a Spartan.
Crossover - Halo & RWBY - Rated: T - English - Humor - Chapters: 1 - Words: 5,149 - Reviews: 2 - Favs: 8 - Follows: 8 - Published: 8/30
3.3K | « Prev Page 1 2 3 4 5 12 .. Last Next »