Halo Crossovers
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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: 12 - Words: 120,081 - Reviews: 306 - Favs: 647 - Follows: 848 - Updated: 12/28/2021 - Published: 7/28/2020
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: 540 - Favs: 1,610 - Follows: 2,437 - Updated: 12/27/2021 - Published: 7/26/2019 - Master Chief/John-117, Cortana, Zaeed M., OC
Ruby-B312 by GreenTheRyno reviews
Reach has fallen, and Noble Team along with it. Standing alone, Noble Six fights like a woman possessed, but even her unique superpowers cannot turn the tide against an enemy who has no interest in fighting fair. Little does she know, her death is only the beginning of her journey - one that will teach this Lone Wolf the strength of her pack.
Crossover - Halo & RWBY - Rated: M - English - Adventure/Sci-Fi - Chapters: 46 - Words: 359,195 - Reviews: 764 - Favs: 1,156 - Follows: 1,354 - Updated: 12/26/2021 - Published: 8/15/2018 - SPARTAN-B312/Noble Six, Ruby R., Winter S., Team RWBY
The Exiles:A New Power by Johnnieboy11 reviews
The beginning of the Battle For Earth signaled the start of the final, bloodiest campaign of the Human-Covenant War. Hastily, a plan is put into motion and an Ark Fleet, composed of a dozen Phoenix-class vessels and their escorts, makes the jump out of system. Either interference, or malfunction, causes their arrival to a new Galaxy, where new threats lurk just around the corner.
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 1 - Words: 5,005 - Reviews: 26 - Favs: 162 - Follows: 245 - Published: 12/26/2021 - OC, Tali'Zorah, Admiral Hackett, Rael'Zorah
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: 70 - Favs: 238 - Follows: 339 - Updated: 12/25/2021 - Published: 8/22/2020 - Master Chief/John-117, Arbiter, J. Keyes, Cortana
Forget Me Not by Lady Artimes Blaine
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 - Favs: 18 - Follows: 23 - 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: 66 - Favs: 182 - Follows: 230 - Updated: 12/24/2021 - Published: 12/21/2020
The Fall of IS by chinoetofu reviews
After the Fall of Reach, Noble six finds himself on what at first to be a past version of Earth. Then he finds out that there are exoskeletons who can only be piloted by females, an academy, a terrorist organization and him being part of a family from this new Earth. How will he react and overcome this new situation?
Crossover - Infinite Stratos/IS<インフィニット・ストラトス> & Halo - Rated: M - English - Sci-Fi/Drama - Chapters: 12 - Words: 45,753 - Reviews: 34 - Favs: 98 - Follows: 119 - Updated: 12/24/2021 - Published: 11/24/2021 - SPARTAN-B312/Noble Six, Houki S., Chifuyu O., Madoka O.
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: 45 - Favs: 144 - Follows: 213 - 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: 2 - Favs: 10 - Follows: 12 - 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: 44 - Favs: 201 - Follows: 264 - 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: 7 - Favs: 24 - Follows: 15 - 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: 9 - Follows: 15 - Updated: 12/22/2021 - Published: 12/20/2021 - Maho N.
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: 9 - Words: 28,118 - Reviews: 47 - Favs: 76 - Follows: 85 - Updated: 12/21/2021 - Published: 1/30/2021 - Neo-Queen Serenity, OC
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: 15 - Follows: 15 - 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: 18 - Follows: 10 - Published: 12/19/2021 - Space Marines, Master Chief/John-117 - Complete
Night Raid Watch Halo Legends (COMING BACK in 2022!) by Crimson Soldat reviews
As the direct continuation of Night Raid plays Halo, Night Raid and Delta are now going to watch multiple stories within the universe of Halo. Follow up from my last fic story, Night Raid Plays Halo. It will have realistic reactions from the cast. Omakes from different characters will be throughout this story. No Multiverse reactions included. Working on currently chapter right.
Crossover - Halo & Akame ga Kiru/アカメが斬る - Rated: T - English - Drama/Sci-Fi - Chapters: 11 - Words: 36,614 - Reviews: 52 - Favs: 78 - Follows: 92 - Updated: 12/19/2021 - Published: 1/16/2021
Halo Tamers by riven-del reviews
The war is over. Things are starting to establish a new normal, including a popular game called Digimon seeing a resurgence in popularity. Ellie has a short lived victory in a local Digimon tournament before she's sent to Onyx to be part of a coexistence project, but the Digital World soon calls for help there...
Crossover - Digimon & Halo - Rated: T - English - Adventure/Friendship - Chapters: 18 - Words: 18,147 - Reviews: 13 - Favs: 4 - Follows: 10 - Updated: 12/19/2021 - Published: 8/12/2021 - Tailmon/Gatomon, T. Hood, OC
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: 7 - Follows: 11 - 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: 216 - Follows: 312 - 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: 29 - Follows: 51 - Updated: 12/10/2021 - Published: 5/24/2018 - OC, J. Cutter, Winter S.
Haloless Angel by SuperZman reviews
What would you do to make up for past mistakes? Some people spend a massive amount of energy to do so, but that energy can either award a blessing, or a curse.
Crossover - Doom & Halo - Rated: M - English - Adventure/Sci-Fi - Chapters: 6 - Words: 8,649 - Reviews: 12 - Favs: 35 - Follows: 47 - Updated: 12/10/2021 - Published: 10/13/2020 - Doomguy, Master Chief/John-117, Cortana
Forceful Entry by Scepterfall reviews
After leaving the Jedi Order, Ahsoka Tano calls in a favour to leave Coruscant. Jedi Master Aayla Secura happily assists the former Jedi. But while on route to Aayla next deployment, a mysterious gravitational anomaly pulls them from light speed. Now the two Force sensitives, along with a handful of clones, find themselves in another war! *Covering the events of Halo 2, and Halo 3
Crossover - Star Wars & Halo - Rated: M - English - Adventure/Sci-Fi - Chapters: 3 - Words: 51,649 - Reviews: 61 - Favs: 268 - Follows: 394 - Updated: 12/9/2021 - Published: 9/9/2021 - Aayla S., Ahsoka T., Master Chief/John-117, SPARTAN-B312/Noble Six
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