Halo Crossovers
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Gundam Wars: Gryps War by lupiniiiredawesome reviews
A/N: what would happen if the Spirit of Fire were in UC.0087, and we're in the middle of the crossfire of a war between two human factions of the Titans and AEUG.. let's see how the events play out..
Crossover - Gundam UC & Halo - Rated: T - English - Sci-Fi/Adventure - Chapters: 1 - Words: 2,371 - Reviews: 2 - Favs: 4 - Follows: 7 - Published: 10/11
Star Wars: Rise of The UNSC by IX404 reviews
When testing an experimental Slipspace upgrade, the Infinity is pulled into another galaxy. Little do they know is that soon, they will be in a fight for their lives against an opponent though to be long since defeated.
Crossover - Star Wars & Halo - Rated: T - English - Sci-Fi/Drama - Chapters: 17 - Words: 66,236 - Reviews: 197 - Favs: 520 - Follows: 616 - Updated: 10/11 - Published: 2/18/2021 - OC, Master Chief/John-117, Rtas 'Vadumee
Stratagem by Temujin the Obliterator reviews
ONI operative Major Colton Martel and his team of spies, assassins, and commandos have been fighting a covert war against the CIS when they stumble upon a conspiracy. The biggest one of the century. They become locked in a dangerous game of intrigue, espionage, and war. As the galaxy titters on the brink of chaos. A Halo/Star Wars AU that also brings together canon and legends.
Crossover - Star Wars & Halo - Rated: M - English - Adventure/Sci-Fi - Chapters: 2 - Words: 8,816 - Reviews: 1 - Favs: 6 - Follows: 11 - Published: 10/10
Task Force 141 by Y. Foster reviews
A crossover fic in which Halo is the future of Call of Duty. After an Op goes sideways, the members of Task Force 141 wake up 500 years in the future...to a whole new galaxy. Just in time for a war unlike any other.
Crossover - Halo & Call of Duty - Rated: T - English - Chapters: 1 - Words: 2,155 - Reviews: 3 - Favs: 15 - Follows: 23 - Published: 10/10 - Ghost, Cpt. John Price, MacTavish/Soap, Gaz
Penumbra: Black Plague by Ginopippofreebooter reviews
A pen, a notebook and some time alone. That is all that the Young Wolf Jake needed and unlike his Titan comrades, he liked to report new findings and informations on it. So, what happens when a Taken anomaly guides him to a seemingly giant ring in the middle of space? (Set from the start of Halo 1 to 3.) (Cover by Abrax1245/Ikarus Prime, follow him on Reddit).
Crossover - Halo & Destiny - Rated: T - English - Sci-Fi/Adventure - Chapters: 19 - Words: 60,731 - Reviews: 104 - Favs: 170 - Follows: 239 - Updated: 10/10 - Published: 6/26/2021 - Master Chief/John-117, Cortana, Ghost, Guardian
HaloGears Drabble by CommanderAuri
This was just a self indulgent ship piece I wanted to write up to pair my Spartan with Damon Baird. It's been a while since I've written anything so I'm a bit rusty.
Crossover - Halo & Gears of War - Rated: K - English - Sci-Fi/Romance - Chapters: 1 - Words: 4,572 - Published: 10/8 - Marcus F., Dominic S., A. Cole, D. Baird - Complete
Xenobade chronicles 2 x halo by Ranger2287 reviews
I'm just throwing out this idea thought it would be cool. Don't have an idea for a title yet, maybe if and when I have more chapters it'll come to me.
Crossover - Halo & Xenoblade Chronicles 2 - Rated: T - English - Chapters: 2 - Words: 5,877 - Reviews: 1 - Favs: 3 - Follows: 4 - Updated: 10/7 - Published: 8/17 - Master Chief/John-117, Cortana, KOS-MOS, T-elos
spartan returns home by phoenix emperor 23 reviews
injured on a mission the first son of minato and kushina. he found something that put him in a war he never thought was possible. on his final mission on reach he chose to be behind. with the wider of the UNSC and ONI thought he died on reach. he had a chance to go back. now he must defended his family and the woman he love from the shadows. even it means the world to think he dead
Crossover - Halo & Naruto - Rated: M - English - Romance - Chapters: 4 - Words: 14,824 - Reviews: 3 - Favs: 45 - Follows: 68 - Updated: 10/7 - Published: 11/1/2021 - [SPARTAN-B312/Noble Six, Hana I.] [Minato N., Kushina U.]
Halo Galactic Wars: Anthologies by Crimson Soldat reviews
Master Chief and a few others had managed to mark their mark in the Galaxy. Yet there are those that hasn't gained enough attention. Untold stories to those who had placed their mark upon where they were. Both in the Far, Far Galaxy and the Master Chief's Home Galaxy. WARNING: CONTAINS A LOT OF ORIGINAL CHARACTERS!
Crossover - Star Wars & Halo - Rated: T - English - Adventure - Chapters: 4 - Words: 3,413 - Reviews: 1 - Favs: 7 - Follows: 10 - Updated: 10/7 - Published: 9/12
John 117, The Father of the Clones by TheExiledStoryTeller reviews
After destroying the Halo ring and the Flood, Master Chief ends up in the Star Wars universe due to his half of the Forward Unto Dawn being pulled into slip space. There he is found by the Mandalorians during their civil war. After helping the side that saved him and Cortana win, he becomes a mercenary and is eventually recruited to be cloned on Kamino instead of Jango Fett.
Crossover - Star Wars & Halo - Rated: T - English - Sci-Fi - Chapters: 4 - Words: 15,096 - Reviews: 49 - Favs: 123 - Follows: 174 - Updated: 10/7 - Published: 9/15 - Master Chief/John-117, Cortana
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: 81 - Words: 285,727 - Reviews: 689 - Favs: 889 - Follows: 900 - Updated: 10/7 - Published: 10/8/2014 - [SPARTAN-B312/Noble Six, Tex/Allison] Maine/Meta
The Spartan and the Legionarie by Lighting wolf knight reviews
A spartan, the pinnacle of the human race. Thrust into a new world, full of new enemies, bonds and monsters. Rated T for violence, death, and profanity. Different characters and AU. Next chapter is 1100 words, Not 1500.
Crossover - Halo & RWBY - Rated: T - English - Romance/Adventure - Chapters: 29 - Words: 76,126 - Reviews: 32 - Favs: 100 - Follows: 126 - Updated: 10/6 - Published: 5/1/2021 - [OC, Pyrrha N.] SPARTAN-B312/Noble Six, J. Ironwood
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: 8 - Words: 42,051 - Reviews: 68 - Favs: 219 - Follows: 284 - Updated: 10/6 - Published: 6/30 - Anakin Skywalker, Obi-Wan K., Ahsoka T., Master Chief/John-117
The Spartans of Remnant by Chris Rudy reviews
The Huntsmen and Huntresses in training we all know and love have undergone Spartan augmentations and are ready to test themselves in the field. What will transpire in this story? Let's find out. Rated M for blood, graphic images, and language.
Crossover - Halo & RWBY - Rated: M - English - Chapters: 1 - Words: 1,535 - Reviews: 1 - Favs: 3 - Follows: 4 - Published: 10/5 - Master Chief/John-117, Team RWBY, Team JNPR, Team STRQ
Mass Effect: Galaxy at war by palik reviews
A Citadel Exploration fleet filled with people the council didnt want around discovers something that will change the face of Citadel Space forever. The council will experience a crash course in the fight for survival (abandoned)
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi - Chapters: 29 - Words: 84,554 - Reviews: 529 - Favs: 1,104 - Follows: 1,541 - Updated: 10/5 - Published: 6/18/2020
The Demon Of The Nine-Nine by SSJ Lone Wolf reviews
It had been ten years since Noble Six joined the NYPD, following the fall of Reach, quickly moving through the ranks and making detective, but when he is transferred to the 99th precinct he finds his life flipped upside down when he had to work alongside the eccentric squad of the Nine-Nine. If his own past doesn't drive him insane...they certainly will!
Crossover - Halo & Brooklyn Nine-Nine - Rated: M - English - Chapters: 11 - Words: 73,803 - Reviews: 314 - Favs: 564 - Follows: 618 - Updated: 10/4 - Published: 10/5/2021 - SPARTAN-B312/Noble Six, Jake P., Amy S, Rosa D.
Digimon War Game S2 by riven-del
The Halo has been destroyed, but the Covenant have a new objective: Earth. Cassandra will have her work cut out for her as she helps the Pillar of Autumn's crew stall the enemy and more Tamers with crests show up.
Crossover - Digimon & Halo - Rated: T - English - Adventure/Sci-Fi - Chapters: 3 - Words: 2,126 - Favs: 2 - Follows: 2 - Updated: 10/4 - Published: 9/2 - OC, Herissmon, Master Chief/John-117, Fred-104
Forward Unto Dawn by TheWizardofOzbourne reviews
Triple Crossover, TSCC/Halo w/Star Trek: Voy/DS9/TNG elements. Trapped in a universe similar to our own, Cameron and John Henry struggle to return home. To do so, three gifts, each from another universe, will get them home and entangle them in a war they thought they knew. Eventual Jameron and MC/Cortana. Updated! 10/04/2022 CH50 Posted!
Crossover - Terminator: Sarah Connor Chronicles & Halo - Rated: T - English - Sci-Fi/Adventure - Chapters: 50 - Words: 391,102 - Reviews: 607 - Favs: 263 - Follows: 318 - Updated: 10/4 - Published: 3/26/2013 - [John C., Cameron] [Cortana, Master Chief/John-117]
Humanity's Resurgence - Re-Upload by StrikeFreedom11 reviews
Two different humanity's. Both pushed around by aliens for far too long. Together, they shall show this third universe that humanity is not to be underestimated.
Crossover - Stargate: SG-1 & Halo - Rated: T - English - Sci-Fi/Adventure - Chapters: 4 - Words: 26,893 - Reviews: 2 - Favs: 29 - Follows: 28 - Published: 10/3 - S. Carter, J. O'Neill, Master Chief/John-117, T. Hood - Complete
The Spartan Hero by SilverExcel115 reviews
The mission's changed, they always do. Sam wasn't expecting entering another world with no possible way back, but his missions objectives remain the same, "Protect humanity, no matter the cost." At the same time, he will be forced to come to terms with his new home and learn what it means to be a hero in this new world. At least he doesn't have to do it alone. Sam and Big 3, C-2A
Crossover - Halo & My Hero Academia/僕のヒーローアカデミア - Rated: T - English - Sci-Fi/Drama - Chapters: 5 - Words: 33,183 - Reviews: 42 - Favs: 136 - Follows: 189 - Updated: 10/2 - Published: 2/16 - [Samuel-034, Nejire Hado] Mirio T., T. Amajiki
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: 29 - Words: 137,696 - Reviews: 581 - Favs: 850 - Follows: 1,092 - Updated: 10/1 - Published: 1/28 - C. Halsey, OC, Itami, Tyuule
Serenity by Space-Dweeb reviews
2542. Humanity lost the war against the Covenant, and has been assimilated into the galaxy-spanning conglomerate. John-117 and his crew, formerly humanity's greatest champions, were forced into a life of crime in order to survive. Aboard the Firefly-class ship Serenity, they travel the galaxy with one mission: get a ship, get a crew, keep flying.
Crossover - Halo & Firefly - Rated: T - English - Sci-Fi/Western - Chapters: 5 - Words: 17,215 - Reviews: 6 - Favs: 9 - Follows: 16 - Updated: 10/1 - Published: 8/14 - [Master Chief/John-117, Cortana] [Fred-104, Kelly-087]
Semper Vigiles by Cypher1597 reviews
Headhunter, a program propagated by the Office of Naval Intelligence. After a final act of defiance against the Covenant, a Headhunter must find his place in a city ruled by corporate greed, bloodthirsty mercenaries, and roaming bands of vicious scavengers. It is the perfect hunting ground for one of ONI's most accomplished killers. Semper Vigiles - Always Vigilant.
Crossover - Halo & Cyberpunk 2077 - Rated: M - English - Adventure - Chapters: 62 - Words: 423,713 - Reviews: 749 - Favs: 1,097 - Follows: 1,288 - Updated: 9/30 - Published: 12/20/2020 - OC, V, Panam P.
Humanity's Resurgence by Strikefreedom10 reviews
Two different humanity's. Both pushed around by aliens for far too long. Together, they shall show this third universe that humanity is not to be underestimated.
Crossover - Stargate: SG-1 & Halo - Rated: T - English - Sci-Fi/Adventure - Chapters: 1 - Words: 161 - Reviews: 94 - Favs: 234 - Follows: 277 - Updated: 9/30 - Published: 4/1/2019 - S. Carter, J. O'Neill, Master Chief/John-117, T. Hood - Complete
Story Ideas by Strikefreedom10 reviews
The title says it all, this is a collection of story ideas that I come up with and then post as I do not have the time or the energy to purseue these story ideas, but I think they still deserve to be made into full stories.
Crossover - Halo & Gundam Seed - Rated: T - English - Chapters: 1 - Words: 161 - Reviews: 14 - Favs: 22 - Follows: 16 - Updated: 9/30 - Published: 3/13/2019 - Master Chief/John-117, Kira Y., Lacus C.
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