Halo Crossovers
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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.
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 8 - Words: 32,575 - Reviews: 47 - Favs: 253 - Follows: 376 - Updated: 8/16 - Published: 7/7/2016 - SPARTAN-B312/Noble Six
Mass Effect Terran Effect by The Grandiose Library reviews
Work In Progress
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 1 - Words: 695 - Reviews: 3 - Favs: 21 - Follows: 25 - Published: 8/16
Der überlegene Soldat by Halgen reviews
I was made to hunt down rebels. To ensure order and prosperity for Earth and all her colonies. The perfect soldier. Then that supersoldat drove it’s iron fist into my visor. My fragmented visor revealed my unnatural blue eyes glaring at the expressionless mask. “My turn.”
Crossover - Halo & Wolfenstein series - Rated: M - English - Sci-Fi - Chapters: 9 - Words: 16,463 - Reviews: 16 - Favs: 45 - Follows: 68 - Updated: 8/14 - Published: 6/22 - Master Chief/John-117
Halo-Naruto: The Fire Within by Azores reviews
20 years have passed since the Dominion arrived on Shinsei. Now, a young boy, burdened with a curse and having lost everything, embarks on a journey with his mentor to not only to become a shinobi but to also find himself along the way. Meanwhile, in the Dominion, war brews on the horizon as an old enemy rears its head once more. Naruto's story begins here. Sequel to H-N: Prologue.
Crossover - Halo & Naruto - Rated: M - English - Sci-Fi - Chapters: 9 - Words: 77,364 - Reviews: 30 - Favs: 99 - Follows: 103 - Updated: 8/14 - Published: 1/18/2019 - OC, Naruto U., Sakura H., Ino Y.
Unknown events have unmeasurable answers by Watsi 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: 15 - Words: 126,144 - Reviews: 269 - Favs: 363 - Follows: 549 - Updated: 8/13 - Published: 4/21 - [Master Chief/John-117, Tali'Zorah] J. Cutter
Dust and Echoes by trestwho reviews
After a successful mission, a UNSC fleet makes a random slipspace jump only to come across an uncharted system containing a sliver of humanity, one with seemingly no connection to Earth and whose natural abilities defy reason. In a galaxy full of terrifying dangers, the UNSC and Remnant must work together to defend all they know from annihilation.
Crossover - Halo & RWBY - Rated: T - English - Sci-Fi/Adventure - Chapters: 24 - Words: 275,129 - Reviews: 969 - Favs: 1,127 - Follows: 1,271 - Updated: 8/13 - Published: 1/12/2020 - Master Chief/John-117, Arbiter, Team RWBY, Team JNPR
Halo: Peace Within the Dark by NeroFlashfox reviews
Dark Version. With the rush of the firing of the rings errors occurred. More species come into play and humanity no longer started on Earth alone. The planet Elemental is here with humans who are different from Earth. With the sacrifice of someone dear to her, Kushina will have her vengeance and her way. Even if she must use her son.
Crossover - Halo & Naruto - Rated: M - English - Chapters: 5 - Words: 12,120 - Reviews: 4 - Favs: 35 - Follows: 47 - Updated: 8/13 - Published: 7/4 - C. Halsey, Naruto U., Orochimaru, Kushina U.
MetroidDoomHalo crossover by Jessica Williams2
This is a crossover of Halo and Doom and Metroid it looks pretty amazing as soon you start to read it because gotten some references from the halo books regarding the Spartans.
Crossover - Doom & Halo - Rated: T - English - Suspense/Adventure - Chapters: 1 - Words: 1,406 - Favs: 1 - Follows: 1 - Published: 8/12 - Doomguy, Master Chief/John-117, Cortana, SPARTAN-B312/Noble Six
Only In Death Does Duty End by Cypher1597 reviews
Spartans are the protectors of humanity. Headhunters are the sword of humanity. Both are required to fight for their species unto their dying breath. However, when death finally comes is that duty maintained? Does it continue as long as the mind can remember it? Regardless of the answer, a Headhunter must find a way to continue his duties. Even if he is no longer human.
Crossover - Halo & High School DxD/ハイスクールD×D - Rated: M - English - Suspense - Chapters: 24 - Words: 143,706 - Reviews: 329 - Favs: 685 - Follows: 899 - Updated: 8/12 - Published: 6/29/2021 - OC
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: 14 - Words: 43,884 - Reviews: 86 - Favs: 137 - Follows: 193 - Updated: 8/12 - Published: 6/26/2021 - Master Chief/John-117, Cortana, Ghost, Guardian
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: 13 - Words: 95,468 - Reviews: 681 - Favs: 1,351 - Follows: 1,777 - Updated: 8/12 - Published: 7/28/2018 - Anakin Skywalker, Obi-Wan K., Master Chief/John-117, Cortana
Noble Team of Terra by FantasyRider35 reviews
Noble Team, six members, all but one is dead, and their duty completed, their story in their universe has ended and are forever memorialized. But now a new world calls to them, reuniting the team and bringing them to the world of Tera. Here they are given another chance, both at life and to save a world from a catastrophe of unimaginable scales, but this time they won't be alone.
Crossover - Halo & Arknights - Rated: M - English - Adventure/Sci-Fi - Chapters: 11 - Words: 78,406 - Reviews: 21 - Favs: 74 - Follows: 97 - Updated: 8/11 - Published: 5/26 - Carter-A259/Noble One, SPARTAN-B312/Noble Six, Amiya
United Nations Shipgirl Command by AT Pyro reviews
The war with the Covenant is over, but a new alien race is threatening Humanity. Follow the exploits, trials, tribulations, and slipping sanity of Admiral Aqua Steele as she fights threats from within and without with humanity's newest weapons... shipgirls. Rated M for language, implications, and shipgirls. A crossover of Halo and Azur Lane, with some Kantai Collection for flavor.
Crossover - Halo & Azur Lane/碧蓝航线 - Rated: M - English - Sci-Fi/Humor - Chapters: 21 - Words: 44,440 - Reviews: 37 - Favs: 78 - Follows: 91 - Updated: 8/11 - Published: 12/12/2018
Everything is Fair in Love and War by VastErimos reviews
So you died? Nailed it. Here try again for my entertainment. OPMC, Waifu Catalog fic, if you have a problem with either of these that’s fine
Crossover - Halo & X-overs - Rated: T - English - Sci-Fi/Friendship - Chapters: 1 - Words: 3,521 - Reviews: 1 - Favs: 12 - Follows: 14 - Published: 8/9 - Fred-104, Serina
Digimon War Game by riven-del reviews
AU. Reach has fallen. A Digimon Tamer was lucky to get off planet, but she didn't expect to get ejected into an UNSC ship fleeing the system to go on their own mission. Can she survive this adventure in one piece?
Crossover - Digimon & Halo - Rated: T - English - Adventure/Hurt/Comfort - Chapters: 22 - Words: 22,893 - Reviews: 17 - Favs: 14 - Follows: 18 - Updated: 8/9 - Published: 12/6/2021 - OC, Herissmon, J. Keyes - Complete
The Mantle of Remnant by KtyouVsWriting reviews
The Master Chief has saved Humanity at the cost of Cortana, one of his few remaining friends. More than he will admit, John relied on her, cared for her. To no longer have her means to lose another part of his humanity. Still the universe keeps going and once again, he is called to serve and protect Mankind. Now he has a choice: does he brave Remnant alone or does he embrace help?
Crossover - Halo & RWBY - Rated: M - English - Adventure/Friendship - Chapters: 21 - Words: 118,201 - Reviews: 567 - Favs: 1,239 - Follows: 1,628 - Updated: 8/7 - Published: 5/16/2019 - Master Chief/John-117
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: 6 - Words: 59,419 - Reviews: 101 - Favs: 583 - Follows: 838 - Updated: 8/6 - Published: 11/9/2020 - SPARTAN-B312/Noble Six, Tali'Zorah, Miranda L., Shepard
Halo: Universal Vortex by NeroFlashfox reviews
With the rush of the firing of the rings errors occurred. More species come into play and humanity no longer started on Earth alone. The planet Elemental is here with humans who are different from Earth. Now Naruto needs to navigate this war torn galaxy. Alive preferably. Pairings maybe Harem. NarutoXHalo world merged with bits of others like Star Wars and Mass Effect. Maybe more.
Crossover - Halo & Naruto - Rated: M - English - Chapters: 47 - Words: 104,082 - Reviews: 172 - Favs: 262 - Follows: 320 - Updated: 8/6 - Published: 1/10 - C. Halsey, Naruto U.
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)
Crossover - Halo & Mass Effect - Rated: M - English - Adventure - Chapters: 3 - Words: 11,089 - Reviews: 30 - Favs: 160 - Follows: 249 - Updated: 8/5 - Published: 7/8 - Rookie, Shepard
Choque de mundos by herlareyrabat reviews
Ambientado después de halo 3 y 20 años antes de la rebelion de robert. John y Cortana llegan a u. extraño mundo después de su batalla en el arca. Que pasara en Westeros una vez que el jefe Maestro y Cortana empiezan a jugar el juego de tronos?
Crossover - Halo & Game of Thrones - Rated: T - Spanish - Adventure/Sci-Fi - Chapters: 1 - Words: 1,104 - Reviews: 5 - Favs: 10 - Follows: 12 - Published: 8/3 - Master Chief/John-117, Cortana, Jon S., Lyanna S.
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?
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 8 - Words: 72,855 - Reviews: 90 - Favs: 285 - Follows: 434 - Updated: 8/3 - Published: 10/8/2020 - T. Hood, Shepard, Councilor Tevos, Benezia
Overruling Covenant by Anime0CC0Manga reviews
All Of Nazarick Ends Up In The Halo Universe (I Own Nothing)
Crossover - Overlord/オーバーロード & Halo - Rated: K - English - Adventure/Sci-Fi - Chapters: 1 - Words: 1,707 - Reviews: 12 - Favs: 34 - Follows: 53 - Published: 8/2 - Ainz, Albedo, Demiurge, Arbiter
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.
Crossover - Halo & Mass Effect - Rated: T - English - Adventure/Sci-Fi - Chapters: 1 - Words: 827 - Reviews: 3 - Favs: 7 - Follows: 12 - Published: 8/2 - OC, Shepard, Peebee S.
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: 5 - Words: 38,143 - Reviews: 81 - Favs: 164 - Follows: 206 - Updated: 8/1 - Published: 4/17 - Clark K./Kal-El/Superman, Master Chief/John-117
Boku No Halo Academia: Rising Conflict by Iowaman24 reviews
Just coming from a desperate battle on another world, Aurdel is hard-pressed to find himself on an alternate Earth where superpowers are completely commonplace. While for now stuck in a battle against Villains and the critics of his methods, he must prepare himself and others for a conflict on the horizon that just may bring about a fiery and devastating end to the world.
Crossover - Halo & My Hero Academia/僕のヒーローアカデミア - Rated: T - English - Adventure/Sci-Fi - Chapters: 47 - Words: 271,450 - Reviews: 90 - Favs: 250 - Follows: 261 - Updated: 7/31 - Published: 12/8/2020 - OC, Shouta A./Eraserhead, 1-A Students, Rumi U./Mirko - Complete
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