Halo Crossovers
Filters
3.3K | « Prev Page 1 2 3 4 5 12 .. Last Next »

StellarHalo: Imperial Intervention by Jack Smith1 reviews
Crown princess Sarah Beatrice Smith was on a Training mission to learn the ropes of Space warfare after completing her training on her homeworld of Terra, But when she and her people stumbles upon an Gateway leading to a new universe, Will they damn or ultimately save the UNSC and the UEG?
Crossover - Halo & Stellaris - Rated: M - English - Adventure/Sci-Fi - Chapters: 2 - Words: 8,121 - Reviews: 2 - Favs: 23 - Follows: 27 - Updated: 3/22 - Published: 2/27 - C. Halsey, SPARTAN-B312/Noble Six, OC
A Hopeful Voyage by EmperorHueyLong reviews
A Call goes out. A Signal of distress. Earth is in danger, it's cities being wiped out one by one. Monsters prowl the streets, and far worse hide in the shadows. It is the UNSC's job to protect earth from all threats, even if this earth isn't their own. The UNSC will answer the call, as it always has.
Crossover - Halo & Worm - Rated: M - English - Sci-Fi - Chapters: 2 - Words: 7,080 - Reviews: 18 - Favs: 54 - Follows: 80 - Updated: 3/22 - Published: 3/14
The Spartan Hero by SilverExcel115 reviews
The mission's changed, they always do. Sam wasn't expecting entering another world with no possible way back, but his missions objectives remain the same, "Protect humanity, no matter the cost." At the same time, he will be forced to come to terms with his new home and learn what it means to be a hero in this new world. At least he doesn't have to do it alone. Sam and Big 3, C-2A
Crossover - Halo & My Hero Academia/僕のヒーローアカデミア - Rated: T - English - Sci-Fi/Drama - Chapters: 9 - Words: 55,607 - Reviews: 70 - Favs: 218 - Follows: 284 - Updated: 3/21 - Published: 2/16/2022 - Samuel-034, Mirio T., T. Amajiki, Nejire Hado
The Spartan and The Heiress by ArmadaScream reviews
After destroying the Flood and escaping the Ark Master Chief and Cortana find themselves on a strange new world where monsters roam freely, and magic truly exists. Together with Weiss Schnee, a huntress in training the unlikely trio will fight the forces of evil and save the world.
Crossover - RWBY & Halo - Rated: T - English - Adventure/Fantasy - Chapters: 1 - Words: 2,721 - Reviews: 10 - Favs: 21 - Follows: 40 - Published: 3/21 - Weiss S., Master Chief/John-117, Cortana, Team RWBY
Different Galaxies Same Fighting Hearts by BeeSamusnChief reviews
After losing Cortana, and gaining his team back. Master Chief would have never thought of himself to become a father figure. Sent to investigate an unkown alien planet, the Covenant have invaded. Chief, and the rest of Blue Team, are put in a situation they've never been through in spartan history. Link to the full cover /art/Different-Galaxies-Same-Fighting-Hearts-Cover-569152729
Crossover - Metroid & Halo - Rated: M - English - Family/Humor - Chapters: 23 - Words: 270,989 - Reviews: 89 - Favs: 225 - Follows: 230 - Updated: 3/21 - Published: 9/30/2014 - Samus A., Master Chief/John-117, Kelly-087, Linda-058
Noble 6: Ghost of Reach by thermalsnipern7 reviews
The war against the Covenant ended, but something else pressed humanity to the verge of extinction like they never did. Now, Noble 6 rises again to defend humanity like he had done before, and make humanity into something strong like it was so long ago. The one thing his enemies keep wondering is why they hear boss music.
Crossover - Halo & Destiny - Rated: M - English - Sci-Fi/Romance - Chapters: 6 - Words: 28,629 - Reviews: 23 - Favs: 79 - Follows: 89 - Updated: 3/20 - Published: 7/31/2022 - [SPARTAN-B312/Noble Six, Fallen]
The Great Apocalyse War of the Stars by FrozenIceKing
A powerful ancient entity escapes imprisonment threatening to destroy everything Harry Potter holds dear, with the help of his friends and the Masterchief aims to stop her yet, would he be able to stop the ancient entity before all is lost and corrupted beyond recognition?
Crossover - Harry Potter & Halo - Rated: T - English - Romance/Adventure - Chapters: 2 - Words: 6,654 - Favs: 3 - Follows: 4 - Updated: 3/20 - Published: 3/6 - Harry P., Cho C., Master Chief/John-117, Arbiter
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: 17 - Words: 110,092 - Reviews: 462 - Favs: 834 - Follows: 1,064 - Updated: 3/19 - Published: 6/29/2021 - OC
Accounts of the Flood conflicts by hunter 139 reviews
A multicrossover series of one-shots depicting several franchises and their encounters with the Flood. I do not own Halo or any other franchises depicted in these stories.
Crossover - Halo & Mass Effect - Rated: T - English - Horror/Sci-Fi - Chapters: 41 - Words: 103,318 - Reviews: 212 - Favs: 178 - Follows: 195 - Updated: 3/17 - Published: 1/15/2015 - Gravemind - Complete
United Freedom by F35B reviews
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. PM me any Weapon and or Plot suggestions if you want, I am open 24/7 so feel free to express your opinion!
Crossover - Star Wars & Halo - Rated: M - English - Sci-Fi - Chapters: 10 - Words: 52,567 - Reviews: 44 - Favs: 101 - Follows: 130 - Updated: 3/17 - 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/Adventure - Chapters: 14 - Words: 64,564 - Reviews: 110 - Favs: 219 - Follows: 336 - Updated: 3/17 - Published: 9/20/2022 - Samus A., Master Chief/John-117
A Huntress In A Demon's World by Rajin Kaijun reviews
Awakening on a strange ringworld occupied by The Banished hellbent on destroying humanity, Ruby Rose joins the Master Chief and his new AI companion in hopes to not only defeat this new threat but also finding a way back to Remnant. This isn't Remnant anymore, she has to play by Halo's rules. (Slight AU Infinite)
Crossover - Halo & RWBY - Rated: M - English - Sci-Fi/Adventure - Chapters: 4 - Words: 22,831 - Reviews: 17 - Favs: 83 - Follows: 132 - Updated: 3/17 - Published: 8/9/2022 - Master Chief/John-117, Ruby R., Atriox, Cortana
Halo: Rise of the Empire by theotherpianist reviews
After the end of the Great War, humanity thought they were done fighting. They were wrong. When a operation to find two UNSC distress signals is launched, the Milk Way entangles itself in a war they never wanted to fight, be in, or witness: the dramatic power play that was the Clone Wars. Amidst the conflict, one Spartan III struggles to protect humanity in a galaxy far, far away.
Crossover - Star Wars & Halo - Rated: T - English - Chapters: 30 - Words: 275,339 - Reviews: 520 - Favs: 812 - Follows: 928 - Updated: 3/16 - Published: 3/16/2014 - Anakin Skywalker, Obi-Wan K., SPARTAN-B312/Noble Six, OC
Final Frontier by Cipher32 reviews
For us the storm has passed, it's time to honor those who never return in this dreadful voyage. As human carved their loved ones' names to a stone pillar of remembrance, they carved ours' into their hearts as an utmost symbol of gratitude, and in them we would never be forgotten amidst time for it is the greatest way they honor us. UNSC Enterprise, requesting immediate recovery.
Crossover - Halo & Azur Lane/碧蓝航线 - Rated: T - English - Sci-Fi/Adventure - Chapters: 12 - Words: 158,404 - Reviews: 199 - Favs: 522 - Follows: 679 - Updated: 3/16 - Published: 1/21/2020 - OC, Enterprise, Cleveland, Vestal
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: 6 - Words: 10,501 - Reviews: 20 - Favs: 56 - Follows: 71 - Updated: 3/15 - Published: 1/31 - OC
From Domination to Genocide V2 by InnocentBlaze686 reviews
4000 years before Darth Vader, there was Mandalore the Preserver, who mysteriously disappeared from the galaxy. With the death of Chancellor Palpatine during his attempted kidnapping, the Republic seeks a new advantage over the CIS, which comes in the form of the newly found Mandalore. But something draws the Jedi away from the Republic: the screams of those suffering genocide.
Crossover - Star Wars & Halo - Rated: T - English - Sci-Fi/Adventure - Chapters: 14 - Words: 57,802 - Reviews: 368 - Favs: 459 - Follows: 592 - Updated: 3/15 - Published: 1/23/2016
Halo: Aegis by Ninja65 reviews
What happens when our favorite knucklehead gets thrown into another universe. This time its time to fight the Covenant. Be prepared for godly shenanigans, large battles, and lots of looting. This is the same version of Naruto I used in my other stories,smarter and more mature Naru. Hopefully you enjoy what I have come up with. Naru/ Harem most likely.
Crossover - Halo & Naruto - Rated: M - English - Adventure/Romance - Chapters: 1 - Words: 5,352 - Reviews: 4 - Favs: 31 - Follows: 41 - Published: 3/14 - Cal-141, Naruto U., Hinata H., Hiruzen S.
The Way by Twisted Fate MK 2 reviews
Ever since the fall of the Covenant, the Arbiter has sought one thing. A path to redeem himself of his past sins. Waking up on a strange world does nothing to change that goal. Though it does add some complications to it, in the form of the bestial Grimm and strange children. But if the gods wish him here, then he shall see their desires through.
Crossover - Halo & RWBY - Rated: T - English - Adventure/Mystery - Chapters: 45 - Words: 199,057 - Reviews: 676 - Favs: 987 - Follows: 1,209 - Updated: 3/13 - Published: 12/27/2019 - Master Chief/John-117, Arbiter, Ruby R., Weiss S.
Remnant by ArmadaScream reviews
The Covenant have stumbled upon Remnant. Team RWBY, General Ironwood, not even Salem, will stop them from carrying out the will of their Gods.
Crossover - Halo & RWBY - Rated: T - English - Tragedy/Sci-Fi - Chapters: 1 - Words: 1,992 - Reviews: 5 - Favs: 8 - Follows: 7 - Published: 3/13 - Ruby R., Salem, Team RWBY
Everything is Fair in Love and War by VastErimos reviews
So you died? Nailed it. Here try again for my entertainment. OPMC, Waifu Catalog fic, if you have a problem with either of these that’s fine
Crossover - Halo & X-overs - Rated: M - English - Sci-Fi/Friendship - Chapters: 4 - Words: 13,367 - Reviews: 12 - Favs: 29 - Follows: 53 - Updated: 3/12 - Published: 8/9/2022 - Fred-104, Serina
Iter In Astris by RememberReach312 reviews
After the Battle at the Ark, John-117 and Cortana are found and rescued by the long-lost UNSC "Spirit of Fire"... [Disclaimers within] [Cross-posted on SB] [Image not mine]
Crossover - StarTrek: Enterprise & Halo - Rated: T - English - Sci-Fi/Drama - Chapters: 2 - Words: 21,628 - Reviews: 37 - Favs: 140 - Follows: 187 - Updated: 3/11 - Published: 11/20/2022 - Master Chief/John-117, Cortana, J. Cutter
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: 66 - Words: 771,295 - Reviews: 182 - Favs: 372 - Follows: 403 - Updated: 3/11 - Published: 9/29/2020 - Sole Survivor, Arthur Maxson, Shaun, OC
Halo: Justice League by G4dgetJunior reviews
After a slipspace incident during a fierce battle, Sierra 117 and some of his allies find themselves in the DC CW universe. However, they are not alone, Atriox and the banished have followed them. Can the UNSC's greatest hero save a new universe from destruction?
Crossover - Halo & Supergirl - Rated: T - English - Sci-Fi/Suspense - Chapters: 2 - Words: 6,652 - Reviews: 1 - Favs: 17 - Follows: 23 - Published: 3/10 - Master Chief/John-117, J'onn J./Martian Manhunter, Kara D./Supergirl, Arbiter
HALO: JL by G4dgetJunior reviews
After a slipspace accident sends a UNSC Frigate and a Banished warship through a rift in space time, Master Chief, Arbiter and others find themselves In a brand new universe. Unfortunately, There are more threats on the horizon, Old and New. As well as some new allies. The Multiverse will never be the same again.
Crossover - Halo & Justice League - Rated: T - English - Sci-Fi/Angst - Chapters: 5 - Words: 6,613 - Reviews: 8 - Favs: 36 - Follows: 47 - Updated: 3/10 - Published: 11/20/2022 - Arbiter, Master Chief/John-117, Karen Starr/Kara Zor-L/Power Girl, J'onn J./Martian Manhunter
Full Circle by sleepycrawler1 reviews
The beginning marks the end, how truer have those words ever been until now. We stopped Truth and are firing Halo to exterminate the Flood, while also hightailing it as fast as we can back to the Portal to return home with all hands accounted. As Chief said "We'll head to the Portal and we'll all go home" Sadly nothing ever goes as planned.
Crossover - Halo & Nier - Rated: M - English - Sci-Fi - Chapters: 1 - Words: 3,154 - Reviews: 5 - Favs: 20 - Follows: 43 - Published: 3/10 - OC, Pascal
3.3K | « Prev Page 1 2 3 4 5 12 .. Last Next »