Halo Crossovers
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Halo: The Aparoid War by The Number One Otaku reviews
The office of naval intelligence receives a strange encrypted distress signal from a research station from a colony on titan. UNSC infinity is tasked with investigating. when the deployment team sent to investigate reports back of a strange creature they have taken down a data chip found provides evidence. a map to an unknown star system and a name. Aparoid
Crossover - Star Fox & Halo - Rated: T - English - Sci-Fi/Adventure - Chapters: 1 - Words: 635 - Reviews: 2 - Favs: 8 - Follows: 13 - Published: 12/31/2021 - Fox M., Krystal, Master Chief/John-117, A. J. Johnson
The (Non)Friendly Neighborhood Spartan by RockofthemMarin reviews
To the UNSC, Spartan-B312 -Noble Six-, went MIA on August 30, 2552. What if Six really went missing in action on that fateful day and ended up in Queens, as our friendly Neighborhood Spider-Man instead.
Crossover - Halo & Avengers - Rated: T - English - Sci-Fi - Chapters: 1 - Words: 1,447 - Reviews: 3 - Favs: 17 - Follows: 22 - Published: 12/28/2021
It Started At Shanxi by SpaceTurtleOX reviews
Fifty years after the end of the Human-Covenant War an ill-fated UNSC expedition opens Relay 314, revealing a civilization unprepared for their arrival, and relics from a terrible past.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 16 - Words: 81,162 - Reviews: 561 - Favs: 1,717 - Follows: 2,581 - Updated: 12/27/2021 - Published: 7/26/2019 - Master Chief/John-117, Cortana, Zaeed M., OC
An Old Machine's New Home by Edgeoftoday reviews
A Reaper is launched from it's home galaxy during one of their many cycles, and spends countless years floating through the empty void of space. It's unintended destination results in the nearly destroyed machine unknowingly put in the middle of a galactic war between a coalition of religeous zealots and an ambitious race expanding over the stars. Picks up at the start of Halo: CE.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 6 - Words: 29,509 - Reviews: 71 - Favs: 252 - Follows: 353 - Updated: 12/25/2021 - Published: 8/22/2020 - Master Chief/John-117, Arbiter, J. Keyes, Cortana
Forget Me Not by Lady Artimes Blaine reviews
A woman from our world discovers that she is in a future where the Halo parody, Red vs Blue is real. She had no idea what happened to her and has a lot to figure out. The problem was that she was getting tired of slapping Church. Then there was Tucker, Caboose, a moody tank, a Spanish speaking robot, 4 Red idiots, a freelancer, an insane AI, & a clueless medic. This was her life.
Crossover - Red vs. Blue & Halo - Rated: T - English - Humor/Parody - Chapters: 6 - Words: 23,563 - Reviews: 1 - Favs: 26 - Follows: 27 - Updated: 12/24/2021 - Published: 10/28/2021 - OC, Tex/Allison, L. Church/Alpha, Cortana
Just Built Different by Pokeya reviews
Max Barrett, the child prodigy, is the single smartest man that humanity has ever or will ever produce. Regarded as both the greatest mind and as a naturally born supersoldier Max is guaranteed a life of luxury. Unfortunately, a single good deed has landed him in an unusual situation: he finds himself in a Halo/Mass Effect crossover universe.
Crossover - Halo & Mass Effect - Rated: M - English - Humor/Sci-Fi - Chapters: 6 - Words: 43,727 - Reviews: 67 - Favs: 192 - Follows: 237 - Updated: 12/24/2021 - Published: 12/21/2020
Halo: A New Frontier by Starwriter8172 reviews
When a UNSC Warship is damaged during a emergency Slip space jump they re emerge in a unknown space, interfering in unknown affair they must survive and reunite with the UNSC command before they are destroyed.
Crossover - Star Wars & Halo - Rated: T - English - Adventure/Sci-Fi - Chapters: 6 - Words: 16,082 - Reviews: 47 - Favs: 158 - Follows: 226 - Updated: 12/24/2021 - Published: 6/12/2021 - Anakin Skywalker, Ahsoka T., Master Chief/John-117, T. Lasky
Ash-117 by Ender-Nite reviews
With the Kalos league over, ending once again in another loss, Ash contemplates where he should go next, but things don't go as planned when he is abducted into the Spartan ll program. Turned into an unstoppable supersoldier, he must save all of humanity under the designation Ash-117.
Crossover - Pokémon & Halo - Rated: T - English - Sci-Fi/Fantasy - Chapters: 2 - Words: 4,223 - Reviews: 3 - Favs: 12 - Follows: 13 - Updated: 12/24/2021 - Published: 12/4/2021 - Ash K./Satoshi, Serena, Cortana
The Noble's Spirit:Tales of the Cardinal Heroes by Johnnieboy11 reviews
The Fall of Reach had signified the beginning of the end of the Human-Covenant War. On Reach, a single Spartan had held the line after the planet was completely abandoned, dying there, alone. In another time, a famed ship fought and defeated the Covenant, only to disappear. Today, on a foreign, ancient world, these two entities would meet to assist one hero and find the truth.
Crossover - Halo & Rising of the Shield Hero/盾の勇者の成り上がり - Rated: M - English - Adventure/Sci-Fi - Chapters: 2 - Words: 10,254 - Reviews: 50 - Favs: 241 - Follows: 316 - Updated: 12/24/2021 - Published: 11/5/2021 - J. Cutter, SPARTAN-B312/Noble Six, Naofumi I., Raphtalia
The Spartan and the Slayer by evevee reviews
When all seems lost and the endless hordes once again pour forth from Hell, the Master Chief finds some help from an old legend wielding a double-barreled sword of vengeance. Lite spoilers for some Halo: Infinite lore. One-shot.
Crossover - Doom & Halo - Rated: K - English - Sci-Fi/Friendship - Chapters: 1 - Words: 1,281 - Reviews: 10 - Favs: 46 - Follows: 24 - Published: 12/24/2021 - Doomguy, Master Chief/John-117 - Complete
Winters Contingency by TwinAttorney864 reviews
NOBLE Teams' actions are sung with praises of glory in one world, but not in another. A planet aflame, a team divided. A single girl is at the center of it all, and she doesn't even know it. Looking for a path away, she eventually learns that she may never be able to run forever. Two stories so well known but twisted by a single person. I want to say there's CW, but not for awhile
Crossover - Halo & Girls und Panzer/ガールズ&パンツァー - Rated: T - English - Sci-Fi/Drama - Chapters: 2 - Words: 3,019 - Reviews: 5 - Favs: 11 - Follows: 18 - Updated: 12/22/2021 - Published: 12/20/2021 - Maho N.
A Halo Effect Challenge by FallenDispair reviews
For a writer looking for a Halo/Mass Effect crossover idea. Free range use of what's inside. Details and new combined timeline of the two universes.
Crossover - Halo & Mass Effect - Rated: T - English - Chapters: 1 - Words: 11,833 - Reviews: 4 - Favs: 18 - Follows: 17 - Published: 12/20/2021
Space Hulk Infinty by 8Ball3 reviews
Spartans don't die. They're just Missing in Action.
Crossover - Warhammer & Halo - Rated: K+ - English - Mystery/Sci-Fi - Chapters: 1 - Words: 1,085 - Reviews: 4 - Favs: 24 - Follows: 15 - Published: 12/19/2021 - Space Marines, Master Chief/John-117 - Complete
Inheritor Effect by Panther-Girl0251 reviews
The family and friends would have been know that Raine would be dead or she could be alive somewhere in the galaxy. They may have hope that Raine will eventually come back home to her family and friends. Wherever she is... or whenever she is found. Things are going to be different in the future she might discover something new... in century later.
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi - Chapters: 3 - Words: 5,313 - Reviews: 5 - Favs: 8 - Follows: 13 - Published: 12/16/2021 - [Shepard, Garrus V.] [SPARTAN-B312/Noble Six, OC]
The Truth About What It Means To Be Alive by FreedomOfThinking reviews
He's the last of his kind, and he's way out of his time. Waking up to a universe under the control of a despotic Artificial Intelligence was the last thing he expected. But the good news for him is that our favorite red-haired commander is all-inclusive and totally supportive of anyone, human or alien. Even if he's kinda responsible for the whole Reaper thing... whoops.
Crossover - Halo & Mass Effect - Rated: T - English - Humor/Adventure - Chapters: 5 - Words: 40,276 - Reviews: 50 - Favs: 237 - Follows: 329 - Updated: 12/16/2021 - Published: 4/10/2019 - Librarian, Didact, OC, Shepard
Time Capsule of Justice by Codey-Wraith reviews
Halo with super hero gear, what could go wrong.
Crossover - Halo & Justice League Unlimited - Rated: M - English - Sci-Fi/Supernatural - Chapters: 1 - Words: 3,840 - Reviews: 2 - Favs: 13 - Follows: 16 - Published: 12/15/2021 - Master Chief/John-117, Brainiac
Power Rangers Nitroforce Season 1 by RomarioGoRace reviews
Those rangers to reveal in new york traveling in the world to stop them. When evil master ridge to flooded the city a tristate area. Luckly a new generation will be it for power rangers nitroforce rising of the nightfall
Crossover - Power Rangers & Halo - Rated: K - English - Supernatural/Sci-Fi - Chapters: 23 - Words: 35,542 - Reviews: 10 - Favs: 1 - Follows: 1 - Updated: 12/13/2021 - Published: 2/1/2021 - Adelle F., Sarah T., Miranda K., Nicole-458
Spartan Appearance by HeroHunter2 reviews
Spartan B-002 awakens on an abandoned frigate, (after being thought to be dead) falling from the orbit of an unknown planet. With little to no choice the Spartan decides to grab a pelican and make his way to the surface of the planet. Only to find something that he never would have expected. (Due to life story on hold, may or may not receive updates again)
Crossover - Halo & RWBY - Rated: M - English - Adventure - Chapters: 8 - Words: 8,866 - Reviews: 35 - Favs: 30 - Follows: 52 - Updated: 12/10/2021 - Published: 5/24/2018 - OC, J. Cutter, Winter S.
Night Raid Plays Halo (COMPLETED) by Crimson Soldat reviews
Taking place in an alternate timeline of Night Raid plays the Original Modern Warfare Trilogy, a Monitor visits them due to boredom and isolation. They question her whether or not she's here to hurt them, but she would show them the events of the Haloverse. With that said and done, they begin to play one of the most popular video game franchise ever. COMPLETE.
Crossover - Akame ga Kiru/アカメが斬る & Halo - Rated: T - English - Sci-Fi/Parody - Chapters: 63 - Words: 234,042 - Reviews: 308 - Favs: 179 - Follows: 178 - Updated: 12/9/2021 - Published: 8/26/2020 - Complete
Eyes up, Spartan by Jonathan Anubian reviews
"We were assigned to assist the NavSpecWar Research Division with the recent discovery of an alien facility. The centerpiece of which was to be some form of slipspace portal. Codenamed The Bridge." There is a pause in the recording. "Something went wrong."
Crossover - Halo & Destiny - Rated: T - English - Sci-Fi - Chapters: 2 - Words: 487 - Reviews: 5 - Favs: 19 - Follows: 26 - Updated: 12/9/2021 - Published: 9/30/2020 - OC, Ikora Rey
Guardians, Spartans, and Guardian? by Kitfictioner reviews
A planned Strike gone wrong where instead of going to Mars, the Guardian ends up in a different universe and must find their way back home. Hopefully this inter-dimensional travel doesn't create some new problems.
Crossover - Destiny & Halo - Rated: T - English - Sci-Fi/Fantasy - Chapters: 3 - Words: 3,627 - Reviews: 12 - Favs: 45 - Follows: 74 - Updated: 12/4/2021 - Published: 7/1/2018 - OC, J. Locke, Master Chief/John-117, Warden Eternal
The Eagle and the Dove by XENMEGALOGOS reviews
For 27 years, humanity had been fighting a losing war with the Covenant. In one universe, humanity discovered the Halo arrays, altering the course of history forever. In another universe, however, humanity discovered another galaxy, and with it, another democracy...
Crossover - Halo & Stellaris - Rated: T - English - Adventure/Friendship - Chapters: 3 - Words: 10,033 - Reviews: 17 - Favs: 68 - Follows: 97 - Updated: 12/4/2021 - Published: 7/6/2021 - Master Chief/John-117, J. Keyes, Cortana, OC
Halo Impact: The Herrscher and the Knight by marseldagistani reviews
John-117 was a broken individual, there's no doubt about that. After his fight with the Didact Cortana gives him her final goodbyes and throws him through a slipspace portal, but what if instead this portal didn't sent to the Infinity? What if during the Mantle's Approach destruction, caused a malfunction that caused a spatial anomaly? Come and find out
Crossover - Halo & Honkai Impact 3rd - Rated: T - English - Chapters: 5 - Words: 13,362 - Reviews: 19 - Favs: 54 - Follows: 75 - Updated: 12/4/2021 - Published: 2/11/2021
Mass Effect: Spartans of the UNSC Stormbringer by Beowolf 43
first chapter is summery.
Crossover - Mass Effect & Halo - Rated: M - English - Sci-Fi/Adventure - Chapters: 1 - Words: 210 - Favs: 7 - Follows: 12 - Published: 12/3/2021
First Contact by outawork reviews
Judy, Nick, and Gazelle makes some new friends and they are very very far from home.
Crossover - Halo & Zootopia - Rated: T - English - Sci-Fi/Humor - Chapters: 6 - Words: 42,006 - Reviews: 9 - Favs: 30 - Follows: 41 - Updated: 12/3/2021 - Published: 12/4/2017 - Master Chief/John-117, Arbiter, Judy H., Nick W.
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