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Legacy of the Precursors (Revised Edition) by DrakeTheTraveller reviews
A legacy is what man leaves behind, the culmination of past deeds laid down at his feet for those who come after. Noble Six walks in the footsteps of his predecessors, peerless warriors and tacticians. As a spartan, war is his birthright. As a man he has nothing to call his own, no legacy to his name. But after Reach's fall, he discovers just what inheritance he will leave behind.
Crossover - Star Fox & Halo - Rated: M - English - Drama/Adventure - Chapters: 13 - Words: 127,597 - Reviews: 244 - Favs: 375 - Follows: 460 - Updated: 7/10 - Published: 3/10/2019 - Fox M., Krystal, Miyu, SPARTAN-B312/Noble Six
Only In Death Does Duty End by Cypher1597 reviews
Spartans are the protectors of humanity. Headhunters are the sword of humanity. Both are required to fight for their species unto their dying breath. However, when death finally comes is that duty maintained? Does it continue as long as the mind can remember it? Regardless of the answer, a Headhunter must find a way to continue his duties. Even if he is no longer human.
Crossover - Halo & High School DxD/ハイスクールD×D - Rated: M - English - Suspense - Chapters: 23 - Words: 138,191 - Reviews: 307 - Favs: 641 - Follows: 840 - Updated: 7/10 - Published: 6/29/2021 - OC, Sirzechs L., Serafall L., Grayfia L.
RWBY:Souls of the Spartans by Johnnieboy11 reviews
The four new members of Noble Team, Six, Seven, Eight and Nine get transported to a world stranger to theirs, where they have to fight their way through the creatures of Grimm, the White Fang and several other darker enemies... All while studying at Beacon, with their new friends. The Spartans, even though younger than most other SIII Survivors, are a hard team to match.
Crossover - Halo & RWBY - Rated: T - English - Humor/Romance - Chapters: 2 - Words: 6,050 - Reviews: 10 - Favs: 44 - Follows: 58 - Updated: 7/10 - Published: 6/27 - SPARTAN-B312/Noble Six, OC, Team RWBY, Team JNPR
Flood of Remnant by Dhdoctor61 reviews
A crossover of Halo, RWBY, and a caricature inspired by one of my own stories. Not sure if the flood will make an appearance but please enjoy all the same.
Crossover - Halo & RWBY - Rated: T - English - Chapters: 3 - Words: 7,957 - Reviews: 3 - Favs: 3 - Follows: 5 - Published: 7/10
Justice League of Amazons: Halo by Angry lil' elf reviews
In a world where the rogue Amazon Aresia succeeds in her plan to wipe out all men on Earth, she has doomed humanity to extinction and a newly reformed Justice League must try and salvage the world. But hope is not lost and it comes in the form of a Spartan II Commando and his AI from another universe. His name: Master Chief Petty Officer John-117.
Crossover - Halo & Justice League - Rated: M - English - Sci-Fi/Adventure - Chapters: 13 - Words: 80,094 - Reviews: 277 - Favs: 902 - Follows: 913 - Updated: 7/9 - Published: 1/13/2016 - Master Chief/John-117, Diana of Themyscira/Wonder Woman, Shiera H./Shayera Hol/Hawkgirl
Remnants of a Spartan: Rewrite by playererror404 reviews
Spartans never die, B312 Noble Six knows this better then most. After her last stand on Reach she woke up lost on another world that has no knowledge of the Covenant or the UNSC. Stranded with few resources on the world of Remnant she'll have to form a new team, grieve her old one and try desperately not to lose her god damn mind over this crazy planet while trying to save it from
Crossover - Halo & RWBY - Rated: T - English - Adventure/Humor - Chapters: 16 - Words: 58,655 - Reviews: 45 - Favs: 239 - Follows: 311 - Updated: 7/9 - Published: 3/3 - [Coco A., Velvet S.] SPARTAN-B312/Noble Six, Team CFVY
The Tale of The Spacefarers: Under Azur Skies by TaleBearer42Day reviews
When the Spartan team known as the Spacefarers (along with their crew of The Bulwark) are pulled from Reach into a world not their own, they must try to return. All while loving ship-girls and fighting Sirens, of course. Things are sure to be fun!
Crossover - Halo & Azur Lane/碧蓝航线 - Rated: K+ - English - Romance/Sci-Fi - Chapters: 10 - Words: 19,763 - Reviews: 6 - Favs: 22 - Follows: 28 - Updated: 7/8 - Published: 2/28 - OC, Kaga, Illustrious
Peter Parker: ODST by Captin Morgan92 reviews
Corporal Peter Parker, a respectable and well-known ODST, drops into the Marvel universe along with his team Alpha-Nine. They face unexpected challenges and face against strange and foreign enemies like the Kingpin. Peter finds himself as a teenager again and he and his team must adapt and adjust to their new lifestyle. High School is definitely going to be a pain for Peter.
Crossover - Spider-Man & Halo - Rated: M - English - Drama/Adventure - Chapters: 6 - Words: 42,492 - Reviews: 57 - Favs: 167 - Follows: 190 - Updated: 7/8 - Published: 4/8/2017 - Peter P./Spider-Man, Gwen S., Liz A./Firestar, E. Buck
No Greater Calling by silencewillfall0091 reviews
Because here's the thing. Turians, despite their reputations, had never loved war- not the suffering, the dying, nor the pain. They loved victory- the prevailing of clear good over clear evil- justice winning in the end, the beating of overwhelming odds for peace. And there was never more a clear example of this type of war than ours against the Covenant.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 3 - Words: 4,912 - Reviews: 64 - Favs: 248 - Follows: 423 - Updated: 7/6 - Published: 1/7
The Return of Liberty by M306117 reviews
Boston, a key city in the American Revolution, once again finds itself threatened by a would-be tyrant that the Minutemen, recovering from their war with the Institute, might not be able to defeat. Undeterred, they stand ready to fight it and find help coming from the unlikeliest of places, both close to home and from afar. Very far...
Crossover - Fallout & Halo - Rated: T - English - Adventure/Sci-Fi - Chapters: 5 - Words: 19,699 - Reviews: 12 - Favs: 22 - Follows: 38 - Updated: 7/6 - Published: 5/9 - Sole Survivor
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. Whole crossover with the trilogy).
Crossover - Halo & Destiny - Rated: T - English - Sci-Fi/Adventure - Chapters: 12 - Words: 39,849 - Reviews: 75 - Favs: 122 - Follows: 169 - Updated: 7/6 - Published: 6/26/2021 - Master Chief/John-117, Cortana, Ghost, Guardian
Rasputin: Access Granted by Dedotron reviews
The Nine granted him access to the multiverse. A metaphorical key. They told him to use it wisely. He would. He would use it to enter universes. And this one would be a trial.
Crossover - Destiny & Halo - Rated: T - English - Sci-Fi/Adventure - Chapters: 3 - Words: 1,691 - Reviews: 12 - Favs: 17 - Follows: 30 - Updated: 7/6 - Published: 6/22 - Rasputin, 343 Guilty Spark, Master Chief/John-117
Wolves That Walk Alone 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: 42 - Words: 340,385 - Reviews: 4370 - Favs: 3,270 - Follows: 3,826 - Updated: 7/5 - Published: 5/8/2019 - SPARTAN-B312/Noble Six, L. Ren, Nora V.
Mass Effect: Galaxy at war by palik reviews
A Citadel Exploration fleet filled with people the council didnt want around discovers something that will change the face of Citadel Space forever. The council will experience a crash course in the fight for survival (Reaper Incursion Arc)
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi - Chapters: 28 - Words: 84,353 - Reviews: 515 - Favs: 1,100 - Follows: 1,569 - Updated: 7/5 - Published: 6/18/2020
The Halo Effect: War and Civilization by free man writer reviews
A crossover years in the works. Civilizations rise and fall but to those that do stand, they prosper. They Expand. They reach out across the stars. But of course, such is a Universal law, War is never far behind. War is a language all civilized races speak and it is war most are familiar with. Co-written with BulletStormX. Halo/Mass Effect with a dash of Star Wars.
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 13 - Words: 127,353 - Reviews: 355 - Favs: 703 - Follows: 920 - Updated: 7/4 - Published: 7/28/2020
Xen Effect by ThePilotArchangel reviews
Xen is the gateway between universes and dimensions. It is the place where time, space, physics, and other known rules that define ones life go out the metaphorical window. What will happen when a Child of Xen, a perfect Supersoldier, a Guardian of Humanity, and a Spectre of a Council of aliens find themselves caught up in a war of survival? Find out in "Xen Effect".
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 8 - Words: 73,718 - Reviews: 37 - Favs: 82 - Follows: 101 - Updated: 7/4 - Published: 4/30 - Master Chief/John-117, Cortana, Shepard, OC
HALO Mass convergence by SapphireDawn11709 reviews
Two Universe collide after the Forerunners fall and the Reapers return, will the two branches of Humanity placed in their respective Systems by a Forerunner Monitor unite or fall, only time will tell in this epic clash. When the UNSC Exploration and Research Vessel Light of Sol discover a strange artifact, they are opened up to the rest of the Galaxy after millennia of isolation.
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi - Chapters: 24 - Words: 82,670 - Reviews: 310 - Favs: 705 - Follows: 883 - Updated: 7/4 - Published: 9/18/2016 - Master Chief/John-117, Cortana, J. Garson, Tali'Zorah
Agent Reach by One Winged A2 reviews
After the events of Lone Wolf, Noble Six wakes up aboard the Mother of Invention. He is offered a chance from the Director to become an agent of Project Freelancer. He takes it, but will the heart of a frozen warrior need help from another? Cover art is in-game footage.
Crossover - Halo & Red vs. Blue - Rated: M - English - Sci-Fi/Romance - Chapters: 79 - Words: 277,241 - Reviews: 676 - Favs: 872 - Follows: 889 - Updated: 7/3 - Published: 10/8/2014 - [SPARTAN-B312/Noble Six, Tex/Allison] Maine/Meta
True Demon by TyrantChimera reviews
The Gravemind was a thousand billion minds. When Halo wiped out the vast majority of it, a small core, a Keymind, was safely ensconced in its own private pocket of space. Yet They were not alone there. There was a reason that the Gravemind never referred to John-117 as Demon. He could never match up to the horror and power of the real thing... Metroid. Oneshot, spoilers.
Crossover - Metroid & Halo - Rated: K+ - English - Horror/Supernatural - Chapters: 1 - Words: 2,091 - Reviews: 1 - Favs: 6 - Follows: 2 - Published: 7/3 - Samus A., Gravemind - Complete
Mass Effect - Convergence by Fallen2Pancake reviews
During a Batarian Slave Raid on the Systems Alliance Colony of Eden Prime unknown defenders both Human and of unknown alien origin aid in the defense. While the UNSC and XCOM join forces under a thought long dead UNSC Rear Admiral and navigate this new universe, how will the future of Mass Effect change and will it change for the better or worse. - Mass Effect - Halo - XCOM Cross.
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi - Chapters: 1 - Words: 11,385 - Reviews: 8 - Favs: 57 - Follows: 81 - Published: 7/2 - SPARTAN-B312/Noble Six, OC, Admiral Hackett, Shepard
Halo-Naruto: The Fire Within by Azores reviews
20 years have passed since the Dominion arrived on Shinsei. Now, a young boy, burdened with a curse and having lost everything, embarks on a journey with his mentor to not only to become a shinobi but to also find himself along the way. Meanwhile, in the Dominion, war brews on the horizon as an old enemy rears its head once more. Naruto's story begins here. Sequel to H-N: Prologue.
Crossover - Halo & Naruto - Rated: M - English - Sci-Fi - Chapters: 7 - Words: 76,325 - Reviews: 27 - Favs: 92 - Follows: 94 - Updated: 7/2 - Published: 1/18/2019 - OC, Naruto U., Sakura H., Ino Y.
Ratchet and clank:Wrath of the rook(revamped by elljayskywalker reviews
Humanity is failing. The banished are winning, and a single Spartan goes on a mission to save it. But the universe is bigger than he first thought. Secrets will be discovered, a new race will be found and trails will test this Spartan.
Crossover - Halo & Ratchet and Clank - Rated: T - English - Adventure/Sci-Fi - Chapters: 1 - Words: 580 - Reviews: 1 - Favs: 1 - Follows: 1 - Published: 7/1 - OC, Ratchet, Rivet
Digimon War Game by riven-del reviews
AU. Reach has fallen. A Digimon Tamer was lucky to get off planet, but she didn't expect to get ejected into an UNSC ship fleeing the system to go on their own mission. Can she survive this adventure in one piece?
Crossover - Digimon & Halo - Rated: T - English - Adventure/Hurt/Comfort - Chapters: 20 - Words: 21,621 - Reviews: 16 - Favs: 12 - Follows: 16 - Updated: 7/1 - Published: 12/6/2021 - OC, Herissmon, J. Keyes
Operation Unusual Paperwork by kpmh2001 reviews
A side story containing all of the story exerpts, post chapter nonsense, and omakes that the world of The Men From Onyx has to offer, now in one convenient package! Warning: The tone and intention of these short stories will change on a by-chapter basis, tonal consistency is effectively not a consideration.
Crossover - Halo & RWBY - Rated: T - English - Parody/Humor - Chapters: 30 - Words: 103,272 - Reviews: 162 - Favs: 89 - Follows: 95 - Updated: 6/30 - Published: 10/4/2019
A hunter in waiting by TheDinoDude427 reviews
The Lek'golo, a race of worms that work together to shape an individual that had the ability to think as a group. But the lek'golo are not a race found on earth, but it would be quite the coincidence that a case 53 came into the Bay as a group of Lek'golo worms. Let's sit back and watch the chaos. (This is somewhat a self-insert story; you have been warned)
Crossover - Halo & Worm - Rated: M - English - Humor/Sci-Fi - Chapters: 7 - Words: 16,822 - Reviews: 56 - Favs: 197 - Follows: 238 - Updated: 6/28 - Published: 3/9 - OC, Skitter, Dinah A.
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