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Autumn's Fury by AuthorOfTheHorizon reviews
A world falling to darkness. A ship fleeing a world that's already succumbed to its death. Fate sets the two on a collision course, pitting the brave men and women of the UNSC Pillar of Autumn against a foe even more mysterious than the Covenant.
Crossover - Halo & RWBY - Rated: T - English - Adventure/Sci-Fi - Chapters: 5 - Words: 26,448 - Reviews: 42 - Favs: 113 - Follows: 198 - Updated: 8h - Published: 3/30 - Master Chief/John-117, J. Keyes, J. Ironwood, Ozpin
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. Currently in Stargate. Temporarily in Miraculous tales of Ladybug and Chat Noir.
Crossover - Halo & X-overs - Rated: M - English - Sci-Fi/Friendship - Chapters: 16 - Words: 62,393 - Reviews: 64 - Favs: 127 - Follows: 145 - Updated: 6/11 - Published: 8/9/2022 - Fred-104, Serina
Harry Potter got trained by Driver1985 reviews
On the night Harry would have been dropped off by his Aunt, Dumbledore had someone else in mind. What if Harry was taken in by other strong people and they even decided to train him? Trained to be a Warrior by Wolves and the UNSC, he will change the world. OP, smart, trained Harry, small harem double cross with Witcher and Halo
Crossover - Harry Potter & Halo - Rated: M - English - Fantasy/Sci-Fi - Chapters: 95 - Words: 520,548 - Reviews: 425 - Favs: 880 - Follows: 1,038 - Updated: 6/11 - Published: 9/30/2021 - [Harry P., Hermione G., Daphne G.] Master Chief/John-117
A Better Tomorrow by DLTA-BOT reviews
How can one man change a world ravaged by corruption, war, and poverty? And if that world isn't his own, why would he want to? In a life built out of discontent and fear, maybe the opportunity for change lies in a new place and a fresh start. A new beginning. And, maybe, he can look forward to a better tomorrow. - A companion story to Wrong Place, Right Time: A Hero's Story.
Crossover - Halo & Cyberpunk 2077 - Rated: T - English - Sci-Fi/Adventure - Chapters: 4 - Words: 37,671 - Reviews: 15 - Favs: 107 - Follows: 134 - Updated: 6/9 - Published: 4/16 - OC, V, Johnny Silverhand, Rogue A.
Halo: Universal Vortex by Legend of Flashfox 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: 68 - Words: 151,342 - Reviews: 285 - Favs: 419 - Follows: 489 - Updated: 6/9 - Published: 1/10/2022 - C. Halsey, Naruto U.
Battle Group Zeta (MCUHalo Crossover) by Sammy-1000 reviews
An UNSC Fleet arrives in the MCU. How will the Avengers and other Heroes react to a Humanity who doesn't take any shit from the Aliens. Read and Find out! Read Full Summary in the First Page. Since Fanfiction doesn't allow much words. Warning:- Blood and Violence.
Crossover - Halo & Avengers - Rated: M - English - Sci-Fi/Adventure - Chapters: 2 - Words: 12,049 - Reviews: 5 - Favs: 42 - Follows: 56 - Published: 6/8 - J. Cutter, Iron Man/Tony S., Pepper P., Captain America/Steve R.
Total Corruption by Two Dudes and a Dream reviews
Having lost everything in her fight against Phazon, she'd gone to its Homeworld to bring an end to it. She had not been prepared to succumb to its effects on her body, but her will could not be ignored. While her body had been changed, her will remained iron strong until the end. But in a surprise twist, she's left abandoned in the gap between dimensions, with no hope of escape…
Crossover - Metroid & Halo - Rated: M - English - Sci-Fi - Chapters: 1 - Words: 4,871 - Reviews: 9 - Favs: 28 - Follows: 43 - Published: 6/7 - Samus A., Master Chief/John-117
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: 89 - Words: 1,051,230 - Reviews: 247 - Favs: 537 - Follows: 594 - Updated: 6/7 - Published: 9/29/2020 - Sole Survivor, Arthur Maxson, Shaun, OC
Spartans Don't Play Games by You will not find me reviews
The Tourney of Harrenhall was the greatest of its kind in Westeros. It was a grand show of the power of house Whent that drew the attention of all seven kingdoms. However, the Westerlands have arrived with strange new allies. Great warriors who bear the sigil of an eagle with arrows and lightning in its claws. Who are these new allies, and what do they mean for Westeros?
Crossover - Halo & Game of Thrones - Rated: T - English - Fantasy/Sci-Fi - Chapters: 57 - Words: 238,069 - Reviews: 2094 - Favs: 1,945 - Follows: 2,327 - Updated: 6/7 - Published: 11/17/2020 - Kurt-051, Lucy-B091, Tom-B292, Tywin L.
HALO: All the Stars in the Sky: Information Files by Spartan-076A reviews
Information Files for my Halo/Stargate fanfiction I have in development. Rated M for intense scenes of combat and violence portrayed in the main story.
Crossover - Stargate: SG-1 & Halo - Rated: M - English - Sci-Fi - Chapters: 6 - Words: 1,707 - Reviews: 9 - Favs: 11 - Follows: 12 - Updated: 6/7 - Published: 3/23
Nuevo Mundo, Mismos Problemas (RWBY Halo Crossover) by ZenthicAlpha115
Línea Alternativa de Si Fuera Tan Fácil. Después de sacrificarse para salvar a sus aliados, los SCDO Ethan y Svensdottir son llevados a otro planeta donde no tienen contacto con la UNSC y tendrán que ingeniárselas para sobrevivir en este nuevo mundo. Donde descubrirán la gran fachada que está llevando a la población de Remnant a una guerra silenciosa.
Crossover - Halo & RWBY - Rated: T - Spanish - Sci-Fi/Fantasy - Chapters: 20 - Words: 79,672 - Favs: 2 - Follows: 2 - Published: 6/6 - Jerome-092, Ruby R., Ozpin, Team RWBY
Halo: The War on Sera by SwedishEmperorThe1 reviews
After the final battle at the Ark, the Master Chief and his friends finds themselves on the obscure planet of Sera. There they've to team up with Sergeant Marcus Fenix and his Delta Squad to once again save humanity from enemies desiring its extermination, as well uncover hidden conspiracies that could determine the very fate of the universe.
Crossover - Halo & Gears of War - Rated: T - English - Sci-Fi/Adventure - Chapters: 6 - Words: 64,966 - Reviews: 67 - Favs: 159 - Follows: 186 - Updated: 6/6 - Published: 12/26/2015 - Master Chief/John-117, Marcus F.
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: 12 - Words: 60,253 - Reviews: 13 - Favs: 23 - Follows: 36 - Updated: 6/5 - Published: 8/14/2022 - [Master Chief/John-117, Cortana] [Fred-104, Kelly-087]
Nier: Great Journey by RamPluto reviews
Finding herself on an unknown ringworld, alone save for her Pod, 2B finds herself thrusted into the middle of an unknown and seemingly intergalactic conflict. With the aid of the Master Chief, 2B will find herself dealing with two worlds, one where Humanity is extinct and the other where war is a constant ever looming threat, to all of mankind and existence itself.
Crossover - Halo & Nier - Rated: T - English - Sci-Fi/Adventure - Chapters: 5 - Words: 31,134 - Reviews: 62 - Favs: 214 - Follows: 314 - Updated: 6/4 - Published: 2/20 - Master Chief/John-117, 2B, Cortana, 9S
Noble 6: Ghost of Reach by thermalsnipern7 reviews
The war against the Covenant ended, but something else pressed humanity to the verge of extinction like they never did. Now, Noble 6 rises again to defend humanity like he had done before, and make humanity into something strong like it was so long ago. The one thing his enemies keep wondering is why they hear boss music.
Crossover - Halo & Destiny - Rated: M - English - Sci-Fi/Romance - Chapters: 14 - Words: 69,788 - Reviews: 43 - Favs: 144 - Follows: 175 - Updated: 6/4 - Published: 7/31/2022 - [SPARTAN-B312/Noble Six, Fallen]
Mankind and Hope: A Halo and Star Wars Collection by Mayflower073 reviews
A collection of short stories in a merged universe for Halo and Star Wars during the last year of the Clone War and the later years of the Insurrection. The United Nations (AU) discovers a galactic community ravaged by civil war, within which a charismatic envoy beseeches them to choose a side. Experience the fanfic that got me into grad school! (Cross-posted from AO3, same name)
Crossover - Star Wars & Halo - Rated: M - English - Sci-Fi/Tragedy - Chapters: 18 - Words: 180,037 - Reviews: 15 - Favs: 43 - Follows: 42 - Updated: 6/4 - Published: 4/14 - Obi-Wan K., Count Dooku, Master Chief/John-117, J. Cutter - Complete
Remnants by General Rage reviews
From Halo's ashes, a mismatched Alliance is born. UNSC soldiers now serve alongside both Batarian deserters and shifty Jackal Space Pirates. Now Shepard and Master Chief have to keep these strange bedfellows from killing one another before they can stop an emergent new threat to the galaxy. The Next Swashbuckling Chapter of the Wormhole Chronicles.
Crossover - Halo & Mass Effect - Rated: M - English - Adventure/Sci-Fi - Chapters: 43 - Words: 910,922 - Reviews: 854 - Favs: 514 - Follows: 590 - Updated: 6/2 - Published: 4/22/2016 - Master Chief/John-117, Cortana, Tali'Zorah, Shepard
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: 24 - Words: 88,237 - Reviews: 163 - Favs: 566 - Follows: 842 - Updated: 6/2 - Published: 7/8/2022 - Rookie, Shepard
halo x gate by Krota reviews
Ever since the war ended years ago spartan 005 had to do one last task, sacrificing his own life to end the last remaining covenant fleet for him to be able to save earth from their last attempt at glassing the planet... S-005 thought he was gonna end up in the light but what he didn't know is that he had woken up in another world known to many as vahrian instead of earth.
Crossover - Halo & Call of Duty - Rated: M - English - Sci-Fi/Fantasy - Chapters: 19 - Words: 141,695 - Reviews: 6 - Favs: 8 - Follows: 7 - Updated: 5/31 - Published: 3/12 - OC, Grace-093, C. Halsey, Kate Laswell
Celestial Dominion of Humanity: star wars by Nopintaloco
War and economy are the only things we know. If your civilization wants to negotiate with us, then we will invade your market with our resources. If you want war, we will make you fight among yourselves, and then we will come and pick up the ashes.
Crossover - Star Wars & Halo - Rated: M - English - Sci-Fi/Fantasy - Chapters: 4 - Words: 6,226 - Favs: 2 - Follows: 4 - Published: 5/30
Echoes of the Force: Awakening of the Fire by Dan Is Here reviews
In a twist of fate, the UNSC Spirit of Fire arrives in the Star Wars galaxy, where it crosses paths with the daring Ghost crew. Together, they defeat an Imperial Star Destroyer, integrate a hyperdrive, and forge a strong alliance. This unexpected alliance kindles a glimmer of hope, hinting that the Spirit of Fire may yet navigate its way home.
Crossover - Star Wars & Halo - Rated: T - English - Sci-Fi/Adventure - Chapters: 5 - Words: 28,235 - Reviews: 19 - Favs: 127 - Follows: 160 - Updated: 5/30 - Published: 3/5 - Hera S., Kanan J., J. Cutter, E. Anders
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: 30 - Words: 249,000 - Reviews: 205 - Favs: 421 - Follows: 493 - Updated: 5/30 - Published: 11/1/2021 - OC, Vladilena Milizé/Lena, Shinei Nouzen, Theo Rikka
Book One: Harvest by Believer218 reviews
The year is 2583. Humanity stands strong, even twenty-six years after a disastrous first contact. But it seems that wherever they go, war will follow. And this war will grip the galaxy like no other. The first adventure of Mass Effect: The Reclaimer Saga. Rated M for graphic depictions of violence.
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 5 - Words: 27,498 - Reviews: 82 - Favs: 78 - Follows: 118 - Updated: 5/28 - Published: 4/4 - [Master Chief/John-117, Ashley W.] Arbiter, Saren A.
Outlaws of the Verse (REVISED, May 2024) by Coltkit Prods. - Omniva Verse reviews
Unofficial sequel/AU/Multi-Xover to "The Last Spartan" by DinoJake. After the defeat of the Reapers, Sapient races stopped aging (believed to be caused by the wave that reprogrammed the Reapers). Made sustainable thanks to Replicators, Dyson Spheres, & Magic giving near infinite land & resources. 3 Powers battle for the soul of the Galaxies: The Space Forces, Pirates, & The Outlaws
Crossover - Mass Effect & Halo - Rated: T - English - Sci-Fi/Family - Chapters: 30 - Words: 80,974 - Reviews: 2 - Favs: 16 - Follows: 10 - Updated: 5/28 - Published: 10/21/2023 - Master Chief/John-117, Shepard, OC, U. Grunt
The Sins of our Fathers by MarkerMagnum reviews
Unknown to the Citadel Council, the Human-Covenant war nears its vicious end. Miranda Keyes is seconds too slow. Delta Halo fires, leaving UNSC space as a lifeless snapshot in time. The Citadel must morn the loss of a civilization they never knew.
Crossover - Halo & Mass Effect - Rated: T - English - Drama/Sci-Fi - Chapters: 13 - Words: 134,428 - Reviews: 547 - Favs: 1,522 - Follows: 2,018 - Updated: 5/27 - Published: 2/11/2023 - Cortana, Councilor Valern, Councilor Tevos, Councilor Sparatus
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