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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: 25 - Words: 393,709 - Reviews: 576 - Favs: 786 - Follows: 959 - Updated: 55m - Published: 10/11/2022 - Luke S., Han S., Master Chief/John-117, T. Lasky
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: 6 - Words: 21,590 - Reviews: 71 - Favs: 120 - Follows: 165 - Updated: 1h - Published: 6/13 - [J. Rico, Dizzy F.] C. Halsey, T. Lasky
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: 81 - Words: 400,778 - Reviews: 304 - Favs: 683 - Follows: 803 - Updated: 3h - Published: 9/30/2021 - [Harry P., Hermione G., Daphne G.] Master Chief/John-117
The Terran Calamity by F35B reviews
(Formerly United Freedom) The Republic finds a small planet on the edge of their space but little do they know the repercussions of their actions. The Terran Eagle will not accept any compromises, nor will any of her citizens. (Halo Inspired Universe) (Star Wars Canon Universe)
Crossover - Star Wars & Halo - Rated: T - English - Sci-Fi - Chapters: 8 - Words: 70,275 - Reviews: 119 - Favs: 310 - Follows: 383 - Updated: 14h - Published: 1/3 - OC
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: 22 - Words: 102,442 - Reviews: 208 - Favs: 285 - Follows: 420 - Updated: 7/9 - Published: 9/20/2022 - Samus A., Master Chief/John-117
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: 8 - Words: 70,555 - Reviews: 288 - Favs: 883 - Follows: 1,238 - Updated: 7/9 - Published: 2/11 - Cortana, Councilor Valern, Councilor Tevos, Councilor Sparatus
HALO: Dead Man of the Moon by UH-60 NIGHTSTALKER reviews
When a new yet familiar Enemy threatens Neo-Queen Serenity and her court/friends, an unlikely ally appears and just happens to have a UNSC Warship at his command. But can Serenity's Senshi trust this new armored clad stranger?
Crossover - Halo & Sailor Moon - Rated: T - English - Adventure/Sci-Fi - Chapters: 21 - Words: 60,465 - Reviews: 95 - Favs: 125 - Follows: 148 - Updated: 7/8 - Published: 1/30/2021 - Neo-Queen Serenity, OC
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: 62 - Words: 138,063 - Reviews: 212 - Favs: 335 - Follows: 405 - Updated: 7/7 - Published: 1/10/2022 - C. Halsey, Naruto U.
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: 27 - Words: 152,315 - Reviews: 178 - Favs: 216 - Follows: 233 - Updated: 7/7 - Published: 11/25/2022 - G. Marek/Starkiller, Jyn E., T. Hood, C. Halsey
Sekirei: The Lost Wolf by Helghast honored guard reviews
The Lonewolf survived and made it off Reach .Now he finds himself trapped in another world, another time and another conflict. Up against a madman forcing a race of super powered aliens to fight to the death to bring a new age of the gods . (Six and Harem)
Crossover - Halo & Sekirei - Rated: M - English - Sci-Fi/Romance - Chapters: 14 - Words: 110,244 - Reviews: 105 - Favs: 322 - Follows: 418 - Updated: 7/6 - Published: 3/2/2022 - SPARTAN-B312/Noble Six, No. 12/Hibiki, No. 11/Hikari, No. 16/Toyotama
Operation: WASTELAND by Spartan-049 reviews
When the UNSC corvette West Virginia finds herself crippled and trapped in a strange irradiated world, her crew allies with one of the largest groups around in the hopes of getting back home again.
Crossover - Fallout & Halo - Rated: T - English - Adventure/Western - Chapters: 7 - Words: 22,412 - Reviews: 7 - Favs: 40 - Follows: 58 - Updated: 7/6 - Published: 3/17
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 11 already written.
Crossover - Warhammer & Halo - Rated: M - English - Sci-Fi - Chapters: 6 - Words: 11,353 - Reviews: 40 - Favs: 152 - Follows: 228 - Updated: 7/6 - Published: 4/27
The Song of Infinity by Johnnieboy11 reviews
As the battle of Christophsis is ongoing, a new faction emerges over the crystalline battlefield. Confusion, worry and fear permeate the Republic lines until a first shot is fired in anger by the Confederacy. A change stirs in the Force, the Reclaimers are awakening and the Galaxy at large is powerless to stop them.
Crossover - Star Wars & Halo - Rated: T - English - Sci-Fi/Adventure - Chapters: 15 - Words: 59,680 - Reviews: 114 - Favs: 440 - Follows: 555 - Updated: 7/5 - Published: 3/23 - Anakin Skywalker, Ahsoka T., Master Chief/John-117, T. Lasky
Avatar: The Lost Wolves by Believer218 reviews
The Academy became the home of Spartan training after the loss of Laconia Station. Kept hidden on a secret world, it has the potential to tip the balance in favor of the UNSC. But secrets lurk beneath the facility, and those secrets are about to be unleashed. Join the Lone Wolves as they embark on an adventure that could change more than just their world.
Crossover - Halo & Avatar: Last Airbender - Rated: T - English - Fantasy/Adventure - Chapters: 4 - Words: 7,987 - Reviews: 1 - Favs: 2 - Follows: 3 - Updated: 7/5 - Published: 6/27 - H. Dinh, OC, Aang, Katara
Noble Intent by In BRRRRRRT We Trust reviews
Without warning, her world went dark, but that's not where her story ends. When Catherine - B320 wakes up in a small room surrounded by others wielding legendary weapons, she quickly realizes what she's in for and now has to adapt to a different kind of hell. Will she fall just as she did on Reach? Or will she bring about a change solidifying her status as a demon?
Crossover - Halo & Rising of the Shield Hero/盾の勇者の成り上がり - Rated: M - English - Adventure/Fantasy - Chapters: 4 - Words: 26,068 - Reviews: 22 - Favs: 109 - Follows: 127 - Updated: 7/3 - Published: 6/27 - Catherine-B320/Kat/Noble Two, Raphtalia
The Noble Diaries by SSJ Lone Wolf reviews
Finding themselves 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, and countless other supernatural creatures and who knows what else, he finds that his troubles are just beginning.
Crossover - Halo & Vampire Diaries - Rated: M - English - Chapters: 1 - Words: 3,079 - Reviews: 29 - Favs: 77 - Follows: 99 - Published: 7/3 - SPARTAN-B312/Noble Six, Elena G., Stefan S., Bonnie B.
Halo-Naruto: Prologue by Azores reviews
Following Psi Serpentis, the fleeing UNSC Everest finds itself in a star system far from the war or the UEG. Teaming up with the Admiral's old flame from the URF and various other elements fleeing the war, the UNSC finds a world, unlike anything they have ever seen before, while on that same world its inhabitants will have their lives changed forever. AU for both Universe. PROLOGUE
Crossover - Halo & Naruto - Rated: M - English - Sci-Fi - Chapters: 18 - Words: 263,411 - Reviews: 166 - Favs: 309 - Follows: 351 - Updated: 7/2 - Published: 5/7/2015 - P. Cole, OC, Kushina U., OC
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: 21 - Words: 113,263 - Reviews: 118 - Favs: 259 - Follows: 386 - Updated: 7/2 - Published: 2/21/2022
Beyond: A Mass Effect and Halo Story by yaknsneeze reviews
AU. 7 months after the events on the Citadel, Commander Shepard and an old ally return to fight an old enemy. Their new mission however, just got a lot more complicated. Post Mass Effect 3, and set in the Halo universe during the book Shadows of Reach.
Crossover - Halo & Mass Effect - Rated: M - English - Chapters: 3 - Words: 4,644 - Reviews: 3 - Favs: 7 - Follows: 15 - Updated: 7/2 - Published: 6/27 - Master Chief/John-117, Shepard
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: 15 - Words: 76,017 - Reviews: 42 - Favs: 97 - Follows: 126 - Updated: 7/2 - Published: 2/7 - [Elster/LSTR-512, Ariane Yong] Master Chief/John-117, Cortana
The Defenders of Humanity by Johnnieboy11 reviews
After the Battle on Mantle's Approach, the Master Chief and his companion AI, Cortana, find themselves in a strange time and place. To survive, the two and those that would come to follow them shall seek allegiance to Earth's Mightiest Heroes, in order to prepare for and counter a great threat to not just mankind, but the wider Universe.
Crossover - Halo & Avengers - Rated: M - English - Adventure/Sci-Fi - Chapters: 4 - Words: 14,230 - Reviews: 38 - Favs: 238 - Follows: 318 - Updated: 7/1 - Published: 3/12/2022 - [Cortana, Master Chief/John-117] Captain America/Steve R., Iron Man/Tony S.
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: 73 - Words: 862,467 - Reviews: 203 - Favs: 415 - Follows: 454 - Updated: 7/1 - Published: 9/29/2020 - Sole Survivor, Arthur Maxson, Shaun, OC
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: 13 - Words: 94,254 - Reviews: 89 - Favs: 193 - Follows: 263 - Updated: 6/30 - Published: 7/22/2020 - J. Cutter, Belfast, OC
Of Latchkeys and Misjumps by Sieben Nightwing reviews
When a second wave SLDF task force from the Amaris Civil War carrying high value passengers suffers a misjump, they end up in orbit over an uncharted planet. Lost and alone, they're hailed by an unknown ship. Circumstances will force them to work together to survive, as the new situation they find themselves in is even worse than the one they came from.
Crossover - Mechwarrior/Battletech & Halo - Rated: M - English - Sci-Fi/Adventure - Chapters: 7 - Words: 36,144 - Reviews: 13 - Favs: 37 - Follows: 62 - Updated: 6/30 - Published: 4/26
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: 17 - Words: 101,073 - Reviews: 386 - Favs: 1,068 - Follows: 1,457 - Updated: 6/30 - Published: 11/25/2020 - OC, Master Chief/John-117, Cortana
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