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The Noble Diaries by SSJ Lone Wolf reviews
Finding himself back in time to the early twenty-first century, Six thought that attending Highschool would be a breeze compared to fighting the Covenant and Insurrectionists. But between Vampires, Werewolves, doublegangers, and countless other supernatural creatures and who knows what else, he finds that his troubles are just starting.
Crossover - Halo & Vampire Diaries - Rated: M - English - Chapters: 3 - Words: 20,070 - Reviews: 57 - Favs: 178 - Follows: 205 - Updated: 37m - Published: 7/3 - SPARTAN-B312/Noble Six, Elena G., Stefan S., Bonnie B.
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: 4 - Words: 41,032 - Reviews: 52 - Favs: 203 - Follows: 281 - Updated: 10h - Published: 11/20/2022 - Master Chief/John-117, Cortana, J. Cutter
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: 24 - Words: 108,347 - Reviews: 295 - Favs: 256 - Follows: 275 - Updated: 11h - Published: 8/25/2022 - Master Chief/John-117, A. J. Johnson, Arbiter, 343 Guilty Spark
ARES:The Gods of War by Johnnieboy11 reviews
Mankind's Greatest Hero has finished his mission once more. Saving Earth from the Didact and his weapon of mass-recruitment, the Composer, the Master Chief and his AI companion, Cortana, find themselves mysteriously transported to a strange variation of Earth, where machines rule the surface and mankind hides below. The SPARTAN and those that join will fight to Reclaim the world...
Crossover - Halo & Goddess of Victory: Nikke - Rated: T - English - Adventure/Sci-Fi - Chapters: 4 - Words: 15,210 - Reviews: 43 - Favs: 240 - Follows: 325 - Updated: 12h - Published: 11/29/2022 - Master Chief/John-117, Cortana, Commander, Rapi
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 & Slender - Rated: T - English - Sci-Fi/Adventure - Chapters: 5 - Words: 18,414 - Reviews: 6 - Favs: 25 - Follows: 27 - Updated: 13h - Published: 9/2/2022 - Master Chief/John-117, Slender
BattleTech: Combat Evolved - Definitive Edition by IX404 reviews
We all know the tale. The SLDF under Aleksandr Kerensky's command leaves the Inner Sphere forever, before evolving into the Clans following Operation KLONDIKE. What if this was not the case? What if the entire Exodus fleet suffered a misjump that propelled them into another universe, one where Humanity will reclaim an ancient inheritance? This is the story of that possibility.
Crossover - Mechwarrior/Battletech & Halo - Rated: T - English - Sci-Fi/Drama - Chapters: 1 - Words: 11,590 - Reviews: 7 - Favs: 56 - Follows: 65 - Published: 14h - Master Chief/John-117, Arbiter, 343 Guilty Spark, C. Halsey
Halo ALT: Remnant by scouttroop reviews
In an Alternate Universe, the UNSC has colonized a disserted Remnant while at war against the United Rebel Front. Meanwhile Pyrrha Nikos who lost her fight against Cinder Fall lands in this Alternate Universes and stranded. Pyrrha herself would join the UNSC since there is probably no way back to her dimension. Alternate Universe Setting and Chapters will be EXTENDED.
Crossover - Halo & RWBY - Rated: T - English - Sci-Fi/Adventure - Chapters: 6 - Words: 4,801 - Reviews: 6 - Favs: 17 - Follows: 19 - Updated: 15h - Published: 7/29 - Catherine-B320/Kat/Noble Two, Carter-A259/Noble One, SPARTAN-B312/Noble Six, Pyrrha N.
Reunion in Fire by Illuviar reviews
For thirty years, humanity led by the UNSC has fought a war against the Covenant. The Covenant glassed hundreds of colonies and killed billions. Humanity is losing the war. At the same time, a galaxy away, the Federated Empire rises from the ashes of the Clone Wars and the Black Rebellion, slowly rebuilding. It is at this time, that the last of the Precursors decided to intervene.
Crossover - Star Wars & Halo - Rated: T - English - Sci-Fi/Adventure - Chapters: 29 - Words: 106,576 - Reviews: 92 - Favs: 301 - Follows: 334 - Updated: 8/23 - Published: 3/11 - Anakin Skywalker, Obi-Wan K., Master Chief/John-117, SPARTAN-B312/Noble Six
Star Wars: Tales of the Infinity's Odyssey by IX404 reviews
While many know of the story of Lasky, the Master Chief and his compatriots, few people know of the stories that happened during these major events. These are the stories of the men and women that also experienced the Odyssey of the Infinity.
Crossover - Star Wars & Halo - Rated: T - English - Sci-Fi/Adventure - Chapters: 29 - Words: 166,010 - Reviews: 196 - Favs: 229 - Follows: 245 - Updated: 8/23 - Published: 11/25/2022 - G. Marek/Starkiller, Jyn E., T. Hood, C. Halsey
Horizon War:Tales of the UNSC-Citizen Federation War by Johnnieboy11 reviews
A chance encounter with Forerunner Technology leads the UNSC to discover a two-way portal which leads into a Universe so similar, yet ever so different from their own. First contact with said Universe's humanity, however, goes awfully wrong, sparking the greatest war since the Human-Covenant War. These are the tales of those who fought in it.
Crossover - Halo & Starship Troopers - Rated: M - English - Adventure/Sci-Fi - Chapters: 9 - Words: 33,740 - Reviews: 106 - Favs: 169 - Follows: 228 - Updated: 8/23 - Published: 6/13 - [J. Rico, Dizzy F.] C. Halsey, T. Lasky
The Iron Cross by Lighting wolf knight reviews
Scattered, in a world where their emperor never existed... The Ultramarines have but one purpose... Protect humanity and act among them. Rated T for violence, death, and profanity. Read next chapter Author Notes for important news.
Crossover - Warhammer & Halo - Rated: T - English - Adventure/Romance - Chapters: 13 - Words: 39,002 - Reviews: 61 - Favs: 96 - Follows: 123 - Updated: 8/23 - Published: 7/15 - Space Marines, OC, Arbiter, Linda-058
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: 48 - Words: 195,499 - Reviews: 1603 - Favs: 1,589 - Follows: 1,895 - Updated: 8/22 - Published: 11/17/2020 - Kurt-051, Lucy-B091, Tom-B292, Tywin L.
The Great War by Forgotten Trooper reviews
9BBY The Galactic Empire is a Behemoth, with no Rebellion to speak of and a unstoppable military, it will soon find itself dragged into conflict with unforeseen enemies and unusual allies. The UNSC is losing the war to the Covenant, and the Prophets consolidate their power over their Dominion. These Gargantuan forces will collide in a war that will leave the galaxy forever changed.
Crossover - Star Wars & Halo - Rated: T - English - Sci-Fi - Chapters: 2 - Words: 7,235 - Reviews: 8 - Favs: 27 - Follows: 36 - Updated: 8/22 - Published: 8/13 - Darth Vader, General Veers, Prophet of Truth, P. Cole
The Brotherhood of Fire by Frostdragon2468 reviews
After the Spirit of Fire leaves the shield world, it is left drifting in space, before a mysterious contact from "New Vegas" on Earth leads the ship down an odd spiral of new circumstances.
Crossover - Fallout & Halo - Rated: T - English - Sci-Fi/Adventure - Chapters: 1 - Words: 726 - Reviews: 4 - Favs: 7 - Follows: 11 - Published: 8/21 - Courier, J. Cutter, E. Anders, Yes Man
The Last Metroid by ShadowLight223 reviews
Her Metroid dna has taken over, resulting in a monstrous transformation. Unable to control her powers, when attempting to escape ZDR, her ship loses power due to her actions. She can't remember what happened after that, but now, all she sees is the blackness of space, left drifting, alone. In the distance, the broken body of a frigate is seen, with the name of Forward Unto Dawn…
Crossover - Metroid & Halo - Rated: M - English - Sci-Fi/Suspense - Chapters: 25 - Words: 114,961 - Reviews: 248 - Favs: 314 - Follows: 457 - Updated: 8/21 - Published: 9/20/2022 - Samus A., Master Chief/John-117
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: 26 - Words: 96,124 - Reviews: 147 - Favs: 256 - Follows: 324 - Updated: 8/21 - Published: 6/26/2021 - Master Chief/John-117, Cortana, Ghost, Guardian - Complete
Bellum Terranum by F35B reviews
In the year 2585 the Humans have mostly recovered from the effects of the Human-Covenant War, however unknown to them, there is a much larger Galaxy out there... one that doesn't take kindly to humanity and their... antics... However an old threat still lays out there, ready to strike. Pls Read & Review (Slight HFY)(AU)
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 4 - Words: 20,556 - Reviews: 59 - Favs: 201 - Follows: 286 - Updated: 8/21 - Published: 7/31
Gensokyo: Combat Evolved by CrackPairingLover reviews
A collection of short stories that are all loosely connected to one another. Please leave reviews and share your thoughts to keep this story going.
Crossover - Halo & Touhou Project - Rated: M - English - Sci-Fi/Fantasy - Chapters: 6 - Words: 3,196 - Reviews: 6 - Favs: 1 - Follows: 2 - Updated: 8/21 - Published: 7/26 - Rtas 'Vadumee, Youmu K., Rookie, Reimu H.
Blood for blood by Lighting wolf knight reviews
As the emperor falls, a new one ascends and his angels take flight... Into a galaxy that needs them. Rated T for violence, death, and profanity.
Crossover - Warhammer & Halo - Rated: T - English - Adventure/Sci-Fi - Chapters: 4 - Words: 7,506 - Reviews: 1 - Favs: 4 - Follows: 6 - Updated: 8/20 - Published: 8/5 - Space Marines, OC, Kelly-087
A Soldier's Odyssey by TheIronGiant reviews
Soldier and Wanderer stack bad guys and protect innocent civilians. In the aftermath of a cosmic rift, the Master Chief crash-lands on Earth, but not the one he knows. Issac is in need of a pro gunfighter to help liberate a slave camp. The slave camp is merely the surface layer of a tangled conspiracy that threatens to destroy what's left of humanity. War never changes.
Crossover - Fallout & Halo - Rated: M - English - Adventure/Mystery - Chapters: 1 - Words: 3,426 - Reviews: 3 - Favs: 6 - Follows: 8 - Published: 8/20 - Lone Wanderer, Dogmeat, Master Chief/John-117, Cortana
Spectre with a Spartan Sister by ZeBear reviews
In 2574, after the formation of the United Sentient Species Federation, they find more intelegent life. Having infiltrated the Normandy Project, they save John Shepard from dying after the Collectors attack at the end of Mass Effect 1. Neglecting to tell his friends. Now with and entire Federation of Species behind him, instead of Cerberus, how will John deal with it all?
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 5 - Words: 6,717 - Reviews: 10 - Favs: 34 - Follows: 60 - Updated: 8/20 - Published: 7/28 - [Shepard, Tali'Zorah] Garrus V.
Spartan and Astartes by Dragon Scripture reviews
War never changes be it in the 26th century or the 40th millennium
Crossover - Halo & Warhammer - Rated: T - English - Romance/Adventure - Chapters: 3 - Words: 3,947 - Reviews: 16 - Favs: 36 - Follows: 49 - Updated: 8/20 - Published: 7/24 - SPARTAN-B312/Noble Six, Space Marines
Many hands make light work by Polluxsashes reviews
A normal twenty-first century human mind stuck inside a Huragok, a Forerunner biobot, gets punted straight into the worst place anyone could ever be: Warhammer 40k. What is he to do but what he is made for? Beware all who call this horrid universe home, you will be 'halped'. First story on this site, updates every 2 weeks. I have up to chapter 12 already written.
Crossover - Warhammer & Halo - Rated: M - English - Sci-Fi - Chapters: 9 - Words: 16,946 - Reviews: 71 - Favs: 246 - Follows: 355 - Updated: 8/17 - Published: 4/27
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: 28 - Words: 466,736 - Reviews: 712 - Favs: 849 - Follows: 1,018 - Updated: 8/16 - Published: 10/11/2022 - Luke S., Han S., Master Chief/John-117, T. Lasky
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