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Halo: Un cuento de los Siete Reinos by freakmanvityaz reviews
En el año 2559/296 D.C., el UNSC inicia la colonización del recien descubierto sistema estelar "Omega Ascalon" en un intento por evacuar a supervivientes de los ataques de "Los Desterrados". Mientras tanto, en el continente occidental del planeta, sus habitantes pronto enfrentarán el cambio de reglas en el "Juegos de Tronos", cuando un lobo solitario vuelve al servicio activo.
Crossover - Halo & A song of Ice and Fire - Rated: M - Spanish - Sci-Fi/Fantasy - Chapters: 6 - Words: 50,946 - Reviews: 16 - Favs: 10 - Follows: 20 - Updated: 3/9 - Published: 2/12
Halo Welcome to New York, Part 2: Tales of Slender by SPARTAN-117-2
Slenderman was trapped in SCP-3008 for months. He was beaten by John-117. Now he's out for blood... Spartan blood.
Crossover - Halo & Slender - Rated: T - English - Horror/Sci-Fi - Chapters: 1 - Words: 96 - Favs: 2 - Follows: 2 - Published: 3/9 - Master Chief/John-117, Slender
A Reaching Light by pro-meem-theus reviews
It's the Fall of Reach, the Covenant have won. Spartan B312, the last Spartan remaining on Reach, has fought tooth and nail to break the backs of the Fleet still present on Reach. However, we both know how it ends. The question is: What happens when the Traveller sees fit to bring back Reach's Hyper Lethal Vector?
Crossover - Halo & Destiny - Rated: T - English - Sci-Fi/Adventure - Chapters: 1 - Words: 812 - Reviews: 4 - Favs: 20 - Follows: 26 - Published: 3/8 - SPARTAN-B312/Noble Six, Ghost, Fallen
The Spartan Of Smallville by SSJ Lone Wolf reviews
Between the Insurrectionists and the Covenant, he thought he had done and seen it all. But after being transported to an alternate universe and settling down in Smallville, Spartan-B312 realizes that his toughest challenge is about to begin...High School. He'll soon learn that there is more to this quiet little town than he initially thought.
Crossover - Smallville & Halo - Rated: M - English - Chapters: 4 - Words: 26,023 - Reviews: 106 - Favs: 217 - Follows: 246 - Updated: 3/8 - Published: 8/18/2022 - Clark K./Superman, Lex L., SPARTAN-B312/Noble Six
La nueva era de la humanidad, Libro 1 Invasiones by Type-universe
El gran Reich renacido de las cenizas después de la guerra Humano-Covenant, unificará a la humanidad a través del multiverso con la intención de unificar a toda la humanidad a través del multiverso, a cualquier costo que sea necesario
Crossover - Halo & Arifureta Shokugyou de Sekaisaikyou/ありふれた職業で世界最強 - Rated: M - Spanish - Sci-Fi/Fantasy - Chapters: 3 - Words: 27,389 - Updated: 3/8 - Published: 2/1
Drop into Hell by Lighting wolf knight reviews
They have a lot more to do before its done. Rated T for violence, death, and profanity.
Crossover - Halo & Mass Effect - Rated: T - English - Adventure/Romance - Chapters: 3 - Words: 11,962 - Reviews: 1 - Favs: 17 - Follows: 23 - Updated: 3/8 - Published: 2/3 - Miranda K., OC, Admiral Hackett, Shepard
BattleTech: Combat Evolved by IX404 reviews
While fleeing from the Inner Sphere following the Amaris Coup, the Exodus Fleet discovers an object out in the inky blackness of space. Little does General Kerensky or his sons know is that they will soon be within the center of a conflict that will decide the fate of Humanity and place the Star League-in-Exile at the forefront of the conflict.
Crossover - Mechwarrior/Battletech & Halo - Rated: T - English - Sci-Fi/Drama - Chapters: 20 - Words: 103,096 - Reviews: 267 - Favs: 225 - Follows: 233 - Updated: 3/8 - Published: 8/25/2022 - Master Chief/John-117, A. J. Johnson, Arbiter, 343 Guilty Spark
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. Crossposted by myself, Jabber the very wocky on Ao3.
Crossover - Halo & Mass Effect - Rated: T - English - Drama/Sci-Fi - Chapters: 4 - Words: 29,995 - Reviews: 122 - Favs: 384 - Follows: 554 - Updated: 3/7 - Published: 2/11 - Master Chief/John-117, Miranda K., Cortana
The Great Apocalyse War of the Stars by FrozenIceKing
A powerful ancient entity escapes imprisonment threatening to destroy everything Harry Potter holds dear, with the help of his friends and the Masterchief aims to stop her yet, would he be able to stop the ancient entity before all is lost and corrupted beyond recognition?
Crossover - Harry Potter & Halo - Rated: T - English - Romance/Adventure - Chapters: 1 - Words: 3,766 - Favs: 2 - Follows: 3 - Published: 3/6 - Harry P., Cho C., Master Chief/John-117, Arbiter
War of the Old Ones by Ian the Mechanic reviews
In forgotten ages past, two near eldritch forces vied for the very life essence of the Galaxy. Unknown to the young races, that war is still ongoing. how can the UNSC, the Citadel Council or the Covenant hope to stand against such forces, when they are still embroiled in their own petty squabbling? How could they hope to survive the War of the Old Ones?
Crossover - Mass Effect & Halo - Rated: M - English - Sci-Fi/Horror - Chapters: 17 - Words: 89,915 - Reviews: 101 - Favs: 214 - Follows: 315 - Updated: 3/6 - Published: 2/21/2022
Homeward Bound:The Human-Covenant War by Johnnieboy11 reviews
As the Human-Covenant War rages on in the year 2552, the UNSC gathers the best of its SPARTANs on Reach in a final bid to buy themselves time against the tide of the Alien Hegemony.. In the meanwhile, a Patrol Ship orbiting the outer areas of the Epsilon Eridani system finds an unknown vessel as it floats aimlessly. Aboard it may be the key to saving humanity, second to Chief.
Crossover - Halo & SIGNALIS - Rated: T - English - Angst/Sci-Fi - Chapters: 12 - Words: 63,737 - Reviews: 36 - Favs: 63 - Follows: 89 - Updated: 3/5 - Published: 2/7 - [Elster/LSTR-512, Ariane Yong] Master Chief/John-117, Cortana
The restoration of the UNSC by Warwolff2003 reviews
Reach has Fallen and the newly promoted Captain Jacob Keyes has taken his small fleet and st course for Earth. However, this is not the Earth those in the UNSC remember. This is my version of a similar story by originally by Samsara Sage which was adopted by Ultimate Deathsaurer 2
Crossover - Stargate: SG-1 & Halo - Rated: T - English - Sci-Fi - Chapters: 12 - Words: 43,659 - Reviews: 90 - Favs: 154 - Follows: 232 - Updated: 3/5 - Published: 12/22/2022 - S. Carter, J. O'Neill, Master Chief/John-117, J. Keyes
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: 5 - Words: 47,435 - Reviews: 25 - Favs: 72 - Follows: 89 - Updated: 3/5 - Published: 9/6/2022 - T. Lasky, OC, Ezra B., Sabine W.
Summoned From The Stars by ProfessorZooms reviews
One day, visitors from the stars came to our world...
Crossover - Halo & Japan Summons/日本国召喚 - Rated: M - English - Sci-Fi/Fantasy - Chapters: 2 - Words: 9,707 - Reviews: 13 - Favs: 47 - Follows: 75 - Updated: 3/4 - Published: 2/3
The Jade Demon of Konoha by Azrael The Deplorable reviews
John-117 has defeated the Didact, at a cost. Cortana falls deep into Rampancy and has a broken body. He must rise to defend the primitive populace from the scattered remnants of the Knights and Covenant forces. Now John has help from distinct Forerunner AI and magic. Or chakra, as the populace calls it.
Crossover - Halo & Naruto - Rated: M - English - Sci-Fi/Hurt/Comfort - Chapters: 1 - Words: 7,808 - Reviews: 4 - Favs: 12 - Follows: 21 - Published: 3/4 - Master Chief/John-117, Cortana, Naruto U., Kakashi H.
Demons of the Holy Grail by jabinker reviews
Deep in the multiverse in the world of the Fate series many characters are summoned, some amazing and good, others terrifying and destructive. This one only hungers to expand. (P.S. Need more stories that have the Flood in them)
Crossover - Halo & Fate/stay night - Rated: M - English - Sci-Fi/Fantasy - Chapters: 1 - Words: 4,161 - Reviews: 7 - Favs: 9 - Follows: 10 - Published: 3/3 - Gilgamesh, Irisviel vE., Arturia Pendragon - Complete
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: 31 - Words: 92,734 - Reviews: 33 - Favs: 113 - Follows: 146 - Updated: 3/2 - Published: 5/1/2021 - [OC, Pyrrha N.] SPARTAN-B312/Noble Six, J. Ironwood
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: 15 - Words: 105,772 - Reviews: 448 - Favs: 694 - Follows: 777 - Updated: 3/2 - Published: 10/5/2021 - SPARTAN-B312/Noble Six, Jake P., Amy S, Rosa D.
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: 8 - Words: 51,605 - Reviews: 61 - Favs: 209 - Follows: 273 - Updated: 3/2 - Published: 2/16/2022 - Samuel-034, Mirio T., T. Amajiki, Nejire Hado
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: 12 - Words: 103,119 - Reviews: 138 - Favs: 322 - Follows: 399 - Updated: 3/2 - Published: 4/17/2022 - Clark K./Kal-El/Superman, Master Chief/John-117
Ironwood Lights the Ring by mizupan reviews
When Ironwood ACTUALLY commits genocide. A bad ending for the RWBY series diverging from the end of Season 8.
Crossover - Halo & RWBY - Rated: K - English - Tragedy/Sci-Fi - Chapters: 1 - Words: 3,170 - Reviews: 4 - Favs: 14 - Follows: 15 - Published: 3/1 - Ruby R., J. Ironwood, Winter S., A. Watts
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: 14 - Words: 85,480 - Reviews: 340 - Favs: 955 - Follows: 1,327 - Updated: 2/28 - Published: 11/25/2020 - OC, Master Chief/John-117, Cortana
Halo: From Spartan to Seran by CommanderAuri reviews
What was originally set to be a smash and grab mission goes completely sideways. A haphazard escape through teleporter on the shield world Requiem's surface sends Spartan Commander Rachel Auri flying head over heels onto foreign soil with hostile contacts right on her tail. Follow her story as she tries to survive a planet that is constantly attempting to kill off it inhabitants.
Crossover - Halo & Gears of War - Rated: K - English - Sci-Fi/Adventure - Chapters: 4 - Words: 28,607 - Reviews: 18 - Favs: 29 - Follows: 35 - Updated: 2/28 - Published: 11/9/2022 - Marcus F., Dominic S., A. Cole, D. Baird
The Reclamation by Fade Maybe reviews
Through ONI's manipulation, the UNSC stumbles upon a Mass Relay and is dragged into a new war. They'll discover the battered races of the Citadel, the political intrigue of its factions, and a second group of humans governed by the Systems Alliance, divided by Cerberus, and lead by Commander Shepard. Yet no one can stop what is to come: the Reclamation, and the death of the galaxy.
Crossover - Halo & Mass Effect - Rated: T - English - Drama/Suspense - Chapters: 55 - Words: 409,476 - Reviews: 1673 - Favs: 1,784 - Follows: 2,209 - Updated: 2/27 - Published: 3/13/2013
Still in the fight by Scepter 2-1 actual reviews
Team Prime battles to defend Earth from the Decepticons with the help of their human allies. Then one day, a mysterious ship shows up, straight out of another war, carrying one of its most hardened veterans with one of his closest friends. A man known to the enemy as a Demon. Cover image is not mine.
Crossover - Halo & Transformers/Beast Wars - Rated: T - English - Sci-Fi/Adventure - Chapters: 10 - Words: 39,844 - Reviews: 73 - Favs: 171 - Follows: 216 - Updated: 2/27 - Published: 12/13/2021 - Arcee, Bulkhead, Jack D., SPARTAN-B312/Noble Six
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