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On the Illusion of Might by evevee reviews
We thought ourselves powerful, able to conquer a galaxy with nothing but toys. When we overcame every challenge, breached the space between the galaxies themselves, what use were the words of a race ashamed of their own past? Yet we cannot deny that we were warned, for while a challenge to a human is laughable, a challenge to humanity is a death sentence.
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi - Chapters: 27 - Words: 297,181 - Reviews: 2061 - Favs: 3,744 - Follows: 4,729 - Updated: 2/21 - Published: 2/21/2017 - Master Chief/John-117, Cortana, Garrus V., Shepard
Season of Transmigrations by Dead Eternity
Fireteam Eros's Engines has been called upon the Young Wolf to investigate a mysterious anomaly in the Manhattan Nuclear Zone. With everything that has been going on, it seems to be a low stakes mission despite the Young Wolf's urgency in this matter. From there, they discover a dead Guardian and a mysterious perpetrator that is playing havoc with a strange portals.
Crossover - Halo & Destiny - Rated: T - English - Adventure/Sci-Fi - Chapters: 2 - Words: 4,791 - Favs: 6 - Follows: 9 - Published: 2/21 - OC
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: 3 - Words: 18,827 - Reviews: 90 - Favs: 287 - Follows: 422 - Updated: 2/20 - Published: 2/11 - Master Chief/John-117, Miranda K., Cortana
Cross the Stars by Helljumper206 reviews
A flash of new arrivals appears above Earth. The UNSC is left baffled at the sight of a flying battleship with technology unlike any other.
Crossover - Starblazers & Halo - Rated: T - English - Chapters: 1 - Words: 2,478 - Reviews: 11 - Favs: 23 - Follows: 28 - Published: 2/20 - D. Wildstar/S. Kodai, P. Cole
Dust and Echoes by trestwho reviews
After a successful mission, a UNSC fleet makes a random slipspace jump only to come across an uncharted system containing a sliver of humanity, one with seemingly no connection to Earth and whose natural abilities defy reason. In a galaxy full of terrifying dangers, the UNSC and Remnant must work together to defend all they know from annihilation.
Crossover - Halo & RWBY - Rated: M - English - Sci-Fi/Adventure - Chapters: 26 - Words: 309,539 - Reviews: 1083 - Favs: 1,256 - Follows: 1,380 - Updated: 2/20 - Published: 1/12/2020 - Master Chief/John-117, Arbiter, Team RWBY, Team JNPR
Wolves That Walk Alone (Hiatus) by TheManThatWalksTheAbyss115 reviews
There's always been growing legends in Remnant. Some of fearless warriors and others of horror, but there's one that's recently been picked up by the inhabitants. A legend of a man who was more akin to a wolf without a pack, barely speaking and doing his deed before leaving without a trace. After all... some people just want isolation rather than company.
Crossover - Halo & RWBY - Rated: M - English - Sci-Fi/Adventure - Chapters: 44 - Words: 345,660 - Reviews: 4636 - Favs: 3,659 - Follows: 4,214 - Updated: 2/19 - Published: 5/8/2019 - SPARTAN-B312/Noble Six, L. Ren, Nora V.
Butcher of Bleeding Faithful by Lord of Moons reviews
Hyper-Lethal. There was but two Spartans with that designation. Each had seen worlds burn, armies fall and wars rage. This one will see a different kind of war, one in which stories sing the song of victory, not statistics.
Crossover - Halo & Is It Wrong to Try to Pick Up Girls in a Dungeon? - Rated: T - English - Sci-Fi/Fantasy - Chapters: 5 - Words: 19,896 - Reviews: 17 - Favs: 61 - Follows: 97 - Updated: 2/19 - Published: 2/6
A Whole New World by Spartan III Commando reviews
Noble six's story did not end on Reach, he escaped the doomed planet after saving the Pillar of Autumn, and he and 117 fought across each Halo, until an incident sent him to a whole new world. And he is wholly unprepared for the journey in store.
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 9 - Words: 35,994 - Reviews: 56 - Favs: 294 - Follows: 429 - Updated: 2/18 - Published: 7/7/2016 - SPARTAN-B312/Noble Six
Machines and Might by Strategic.Ignorance reviews
Eight years before the USJ Incident, the Hero Public Safety Commission learns of the Meta Liberation Army. Doubting the current heroes ability to stop this threat, the Commission sees this as the perfect opportunity to usher in a new age of heroes. The first step is the kidnapping of one hundred kids. Among them is Izuku Midoriya. Moderate AU.
Crossover - Halo & My Hero Academia/僕のヒーローアカデミア - Rated: T - English - Sci-Fi/Friendship - Chapters: 18 - Words: 68,244 - Reviews: 117 - Favs: 315 - Follows: 415 - Updated: 2/17 - Published: 12/1/2021 - William-043, Izuku M., Hitoshi S., Mei H.
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/Adventure - Chapters: 12 - Words: 55,521 - Reviews: 88 - Favs: 191 - Follows: 297 - Updated: 2/17 - Published: 9/20/2022 - Samus A., Master Chief/John-117
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: 16 - Words: 231,010 - Reviews: 360 - Favs: 625 - Follows: 772 - Updated: 2/17 - Published: 10/11/2022 - Luke S., Han S., Master Chief/John-117, 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: 68 - Words: 321,873 - Reviews: 222 - Favs: 564 - Follows: 680 - Updated: 2/17 - Published: 9/30/2021 - [Harry P., Hermione G., Daphne G.] Master Chief/John-117
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: 11 - Words: 30,781 - Reviews: 77 - Favs: 133 - Follows: 202 - Updated: 2/17 - Published: 12/22/2022 - S. Carter, J. O'Neill, Master Chief/John-117, J. Keyes
GATE x HALO: The Gate of Reach by SimplyLaggy reviews
A mysterious Gate opens on Hood Street, Reach. The USSC Counterattacks. What will happen as the JSDF Comes through? ( AU)
Crossover - Halo & Gate - Jietai Kare no Chi nite, Kaku Tatakeri - Rated: T - English - Sci-Fi - Chapters: 5 - Words: 8,372 - Reviews: 16 - Favs: 46 - Follows: 58 - Updated: 2/17 - Published: 1/31 - OC
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: 17 - Words: 254,203 - Reviews: 160 - Favs: 295 - Follows: 334 - Updated: 2/16 - Published: 5/7/2015 - P. Cole, OC, Kushina U., OC
Operation Terra Sunrise HALO ( AU) x ME ( AU) by SimplyLaggy reviews
The Endless Swarm, known as the Reapers. Mostly defeated by the forerunners, yet after the death of almost all forerunners, they return. Now, the Reclaimers face them. Join Rebecca Shepard, a OMI Long-term undercover operative, as she goes undercover as Jane Shepard on Terra, Systems Alliance Earth, which was made by Ancient Humanity, as a ancient human remnant AI watches.
Crossover - Halo & Mass Effect - Rated: T - English - Chapters: 2 - Words: 4,521 - Reviews: 7 - Favs: 37 - Follows: 58 - Updated: 2/16 - Published: 2/9 - Illusive Man, Shepard
House of Reclamation by Mend1cant Bias reviews
Death was truly never the end. Being born to a legendary, advance race was part of the equation. Yet it was never part of the equation to end up in a alternate universe, stranded with a handful of ships and their crew to survive in a world where light and dark clash in over the Universe. Dead people rising, Space Romans, scavenger pirate aliens, Time travel robots? Yeah, classic.
Crossover - Halo & Destiny - Rated: M - English - Sci-Fi/Adventure - Chapters: 1 - Words: 2,389 - Reviews: 8 - Favs: 18 - Follows: 26 - Published: 2/16 - Gravemind, OC, Fallen, Guardian
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: 10 - Words: 36,153 - Reviews: 84 - Favs: 332 - Follows: 501 - Updated: 2/16 - Published: 7/8/2022 - Rookie, Shepard
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: 12 - Words: 85,187 - Reviews: 81 - Favs: 176 - Follows: 243 - Updated: 2/15 - Published: 7/22/2020 - J. Cutter, Belfast, OC
The Noble Wolf of Earth by Slim A Lou Prime reviews
Noble Six was fighting the inevitable, he knew he would die on Reach. Yet he was not going to make it easy for covenant. Turns out killing him was outside their ground forces abilities. So they sent a cruiser glass him. That ship only managed to trap him before a flying forerunner monitor decided to set him lose on another galaxy. Maybe he wasn't meant to die on Reach.
Crossover - Stargate: SG-1 & Halo - Rated: M - English - Sci-Fi/Adventure - Chapters: 3 - Words: 26,823 - Reviews: 44 - Favs: 178 - Follows: 278 - Updated: 2/11 - Published: 11/28/2022 - SPARTAN-B312/Noble Six
A Better Tomorrow by jak3combat reviews
Helljumpers. Little Imps. Or just ODSTs. It doesn't matter what they're called, they're some of the best units in the entire UNSC, aside from the remaining SPARTANs. They've gone through rigorous trials to get to where they are today. Over New Mombasa, this group of Helljumpers don't quite make it to the ground. Instead, they arrive somewhere none of them can quite identify...
Crossover - My Little Pony & Halo - Rated: T - English - Adventure/Sci-Fi - Chapters: 2 - Words: 3,129 - Reviews: 8 - Favs: 21 - Follows: 27 - Updated: 2/11 - Published: 5/25/2018
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: 9 - Words: 38,188 - Reviews: 7 - Favs: 17 - Follows: 28 - Updated: 2/10 - Published: 8/14/2022 - [Master Chief/John-117, Cortana] [Fred-104, Kelly-087]
Drop into Hell by Lighting wolf knight
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: 2 - Words: 5,426 - Favs: 11 - Follows: 16 - Updated: 2/10 - Published: 2/3 - Miranda K., OC, Admiral Hackett, Shepard
The wolf of the hunter by Lighting wolf knight reviews
Hunters of all shades find a home. Rated t for violence, death, and profanity.
Crossover - Warhammer & Halo - Rated: T - English - Sci-Fi/Adventure - Chapters: 2 - Words: 7,502 - Reviews: 1 - Favs: 5 - Follows: 8 - Updated: 2/9 - Published: 1/20 - Space Marines, OC, Master Chief/John-117, Linda-058
The USSC: A Timeline by SimplyLaggy reviews
A timeline of my USSC fanfic base. Feel free to use what's inside, but please gib me credit : REVAMP OUT 28/2/23 ENJOY
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 1 - Words: 1,628 - Reviews: 2 - Favs: 8 - Follows: 10 - Published: 2/8
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