Halo Crossovers
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HALO: JL by G4dgetJunior reviews
After a slipspace accident sends a UNSC Frigate and a Banished warship through a rift in space time, Master Chief, Arbiter and others find themselves In a brand new universe. Unfortunately, There are more threats on the horizon, Old and New. As well as some new allies. The Multiverse will never be the same again.
Crossover - Halo & Justice League - Rated: T - English - Sci-Fi/Angst - Chapters: 3 - Words: 6,557 - Reviews: 4 - Favs: 23 - Follows: 28 - Updated: 11/22 - Published: 11/20 - Arbiter, Master Chief/John-117, Karen Starr/Kara Zor-L/Power Girl, J'onn J./Martian Manhunter
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: M - English - Sci-Fi/Friendship - Chapters: 3 - Words: 10,198 - Reviews: 6 - Favs: 21 - Follows: 39 - Updated: 11/21 - Published: 8/9 - Fred-104, Serina
Collectors at Dawn v2 by jacksld850 reviews
A rewrite of the original Collectors at Dawn. Lost all of the work I had on it so I'll be redoing it from scratch.
Crossover - Halo & Mass Effect - Rated: M - English - Adventure/Sci-Fi - Chapters: 1 - Words: 11,710 - Reviews: 3 - Favs: 18 - Follows: 35 - Published: 11/21 - Master Chief/John-117, Cortana, Miranda L., Shepard
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: 2 - Words: 3,393 - Reviews: 5 - Favs: 9 - Follows: 12 - Updated: 11/20 - Published: 10/11
Iter In Astris by RememberReach312 reviews
After the Battle at the Ark, John-117 and Cortana are found and rescued by the long-lost UNSC "Spirit of Fire"... [Disclaimers within] [Cross-posted on SB] [Image not mine]
Crossover - StarTrek: Enterprise & Halo - Rated: T - English - Sci-Fi/Drama - Chapters: 1 - Words: 9,613 - Reviews: 10 - Favs: 58 - Follows: 84 - Published: 11/20 - Master Chief/John-117, Cortana, J. Cutter
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: 6 - Words: 22,957 - Reviews: 6 - Favs: 10 - Follows: 18 - Updated: 11/19 - Published: 8/14 - [Master Chief/John-117, Cortana] [Fred-104, Kelly-087]
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: 30 - Words: 142,696 - Reviews: 628 - Favs: 893 - Follows: 1,137 - Updated: 11/19 - Published: 1/28 - C. Halsey, OC, Itami, Tyuule
Wrong Place, Right Time: A Hero's Story by DLTA-BOT reviews
The journey of a hero doesn't always start where they expect. It doesn't always happen to those who expect it. Damon was never interested in being what SPARTANs represent: an implacable force for good standing as humanity's shield. Like most other third-generation SPARTANs, the war took everything from him. All he wanted was to return the favor. Sometimes we don't get a choice.
Crossover - Fallout & Halo - Rated: T - English - Adventure/Sci-Fi - Chapters: 58 - Words: 672,794 - Reviews: 168 - Favs: 326 - Follows: 353 - Updated: 11/19 - Published: 9/29/2020 - Sole Survivor, Arthur Maxson, Shaun, OC
At Orion's Edge by CIA 4UUUU reviews
The Pillar of Creation and its sleeping occupant orbit a distant star at the edge of Orion's Spur. 170 million kilometers from this heavenly body is a planet unique to most others.
Crossover - Halo & RWBY - Rated: M - English - Adventure/Sci-Fi - Chapters: 3 - Words: 38,450 - Reviews: 9 - Favs: 33 - Follows: 48 - Updated: 11/18 - Published: 11/13 - OC, Team RWBY, Team JNPR
The Spartan's Wrath by SpartanPrime101 reviews
I have been called many things since I first arrived in this universe. The locals call me a hero. That boy scout, Superman, calls me a mindless killer. The Amazon…a necessary evil. Gotham's Batman…a murderer. I'm all that, and much more…I'm a Spartan. OC Spartan. Rated M for Mature Themes. Please Read and Review.
Crossover - Halo & Justice League - Rated: M - English - Sci-Fi - Chapters: 10 - Words: 22,219 - Reviews: 61 - Favs: 175 - Follows: 244 - Updated: 11/18 - Published: 10/31 - OC, Diana of Themyscira/Wonder Woman, Barbara Gordon/Batgirl/Oracle
Star Wars: Odyssey of the Infinity by IX404 reviews
During a routine safety test, the Slipstream Space Drive of the Infinity malfunctions, catapulting them into unknown space. Little do Lasky and the members of the Infinity know is that they will soon change the fate of a far away galaxy.
Crossover - Star Wars & Halo - Rated: T - English - Sci-Fi/Drama - Chapters: 7 - Words: 93,792 - Reviews: 159 - Favs: 362 - Follows: 463 - Updated: 11/18 - Published: 10/11 - Luke S., Han S., Master Chief/John-117, T. Lasky
Halo x Star Wars: Galactic Wars by herlareyrabat reviews
Set in a shared universe of Halo and Star wars. What will happen when the republic is threatened by an unknown faction? Will he be able to survive? And the UNSC? Will he be able to survive a new war on a galactic scale?
Crossover - Star Wars & Halo - Rated: T - English - Sci-Fi/Fantasy - Chapters: 1 - Words: 1,535 - Reviews: 4 - Favs: 17 - Follows: 23 - Published: 11/17 - Anakin Skywalker, Ahsoka T., Master Chief/John-117, T. Hood
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.
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 15 - Words: 249,186 - Reviews: 173 - Favs: 130 - Follows: 135 - Updated: 11/17 - Published: 6/26/2016 - OC, Liara T'Soni, U. Wrex
Halo Gundam by 6-4 pilot reviews
Stuck in the Universal Century during the One Year War, Master Chief and his companions help the White Base Crew survive while also trying to find a way back to Zeta Halo. In the meantime, a group of battle-hardened Banished troops does what their organization does best. Take advantage of conflicts and various organizations for their own benefit. (Also includes Owl House)
Crossover - Halo & Gundam UC - Rated: M - English - Sci-Fi - Chapters: 27 - Words: 102,291 - Reviews: 181 - Favs: 72 - Follows: 93 - Updated: 11/16 - Published: 6/22 - Master Chief/John-117, Amuro R.
The Guiding Fire by UNSC indomitable reviews
A Commander striped of authority. The world divide and falling. Last fading light. Hope lays in Spirit and might. As those with the fire lay dying. All must stand fast in the face howling night.
Crossover - Halo & Azur Lane/碧蓝航线 - Rated: T - English - Sci-Fi/Adventure - Chapters: 11 - Words: 80,607 - Reviews: 71 - Favs: 166 - Follows: 227 - Updated: 11/15 - Published: 7/22/2020 - J. Cutter, Belfast, OC
Halo: Universal Vortex by NeoFlashfox 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: 48 - Words: 107,149 - Reviews: 177 - Favs: 272 - Follows: 336 - Updated: 11/14 - Published: 1/10 - C. Halsey, Naruto U.
Night Raid Watch Halo Legends by Crimson Soldat reviews
As the direct continuation of Night Raid plays Halo, Night Raid and Delta are now going to watch multiple stories within the universe of Halo. Follow up from my last fic story, Night Raid Plays Halo. It will have realistic reactions from the cast. Omakes from different characters will be throughout this story. No Multiverse reactions included. Co-written by ExcaliburShooter.
Crossover - Halo & Akame ga Kiru/アカメが斬る - Rated: T - English - Drama/Sci-Fi - Chapters: 12 - Words: 39,054 - Reviews: 64 - Favs: 109 - Follows: 120 - Updated: 11/14 - Published: 1/16/2021
Unknown and Uncharted sectors Of Section I I I by VodMesa
Unknown and uncharted the Spartan III super soldier that was known as B-312 is about to be in some strange sectors (Captain Forever)
Crossover - Halo & Captain Forever - Rated: M - English - Sci-Fi - Chapters: 1 - Words: 5,597 - Favs: 1 - Published: 11/14 - SPARTAN-B312/Noble Six, Cpt. Farbs, Peacekeepers, OC
Eternity Into The Void by ProfessorZooms reviews
The Reclamation has begun and the UNSC Eternity is now on the run after fleeing the Orion Arm - into the safety of slipspace. Only to end up marooned on a strange magical world. Inspired by an earlier Halo x FoZ fanfic called "Zero to Infinity"
Crossover - Familiar of Zero & Halo - Rated: M - English - Sci-Fi/Fantasy - Chapters: 19 - Words: 119,077 - Reviews: 216 - Favs: 370 - Follows: 535 - Updated: 11/13 - Published: 4/10
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 - Halo & Harry Potter - Rated: T - English - Sci-Fi/Adventure - Chapters: 3 - Words: 11,838 - Reviews: 5 - Favs: 17 - Follows: 21 - Updated: 11/13 - Published: 9/2 - Harry P., Master Chief/John-117
A New Path by GeorgeQuartz reviews
Year 2560, the UNSC Infinity and what is left of her crew is fighting for its life against countless Banished Invaders. Deep inside the ship, two pilots and friends have to fight their way through it all to their Longsword Interceptor. A one-in-a-million chance incident with a Forerunner Artefact brings them to a different fight with a different enemy, just trying to get back home.
Crossover - Halo & Star Wars Rebels - Rated: T - English - Sci-Fi - Chapters: 4 - Words: 34,761 - Reviews: 22 - Favs: 61 - Follows: 78 - Updated: 11/12 - Published: 9/6 - T. Lasky, OC, Ezra B., Sabine W.
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: 4 - Words: 2,905 - Favs: 3 - Follows: 3 - Updated: 11/12 - Published: 9/2 - OC, Herissmon, Master Chief/John-117, Fred-104
Dance With the Devil (2) by ghost company reviews
Vader had it all planned out. Sidious would die. For years he had plotted, conspired, murdered, and forged elaborate lies to get to this point. However, when the Force throws in a new variable, years of planing are called into question. Will the Sith Lord be able to complete his revenge, and who will he be in the end... Anakin or Vader?
Crossover - Star Wars & Halo - Rated: T - English - Sci-Fi/Adventure - Chapters: 12 - Words: 78,941 - Reviews: 76 - Favs: 255 - Follows: 341 - Updated: 11/12 - Published: 11/21/2018
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: 8 - Words: 98,545 - Reviews: 151 - Favs: 717 - Follows: 1,027 - Updated: 11/11 - Published: 11/9/2020 - SPARTAN-B312/Noble Six, Tali'Zorah, Miranda L., Shepard
The Reclaimer of Mandalore by UNSC indomitable reviews
Having been awoken by his faithful companion. The Master Chief and Cortana find themselves in an unknown galaxy. Knowing the only way to survive is to remain under the radar. But in a galaxy gripped by war, such a thing was never going to be easy. As the Chief try's to up hold the status quo in the ever changing world of Mandalore, as the galaxy slowly torn apart around them.
Crossover - Star Wars & Halo - Rated: T - English - Sci-Fi - Chapters: 11 - Words: 70,187 - Reviews: 292 - Favs: 800 - Follows: 1,140 - Updated: 11/10 - Published: 11/25/2020 - OC, Master Chief/John-117, Cortana
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