Halo Crossovers
Filters
3.4K | Page 1 2 3 4 11 .. Last Next »

Dance With the Devil (2) by ghost company reviews
Vader had it all planned out. Sidious would die. For years he had plotted, conspired, murdered, and forged elaborate lies to get to this point. However, when the Force throws in a new variable, years of planing are called into question. Will the Sith Lord be able to complete his revenge, and who will he be in the end... Anakin or Vader?
Crossover - Star Wars & Halo - Rated: T - English - Sci-Fi/Adventure - Chapters: 15 - Words: 95,258 - Reviews: 107 - Favs: 291 - Follows: 378 - Updated: 11h - Published: 11/21/2018
HELLDIVERS:The Chance Encounter by Johnnieboy11 reviews
Super Earth is at war! In the Galactic West, the Automatons unleash their socialist horror upon the peoples of Super Earth. In the East, meanwhile, Terminids escaped from their cages bring forth destruction on our Colonies! Though, even amidst these trying times, hope remains! Newfound allies have entered the fight for Managed Democracy! Their name? The United Nations Space Command
Crossover - Helldivers & Halo - Rated: T - English - Sci-Fi/Adventure - Chapters: 8 - Words: 31,525 - Reviews: 87 - Favs: 216 - Follows: 266 - Updated: 15h - Published: 3/2 - Master Chief/John-117, A. J. Johnson, Arbiter, SPARTAN-B312/Noble Six
HALO: All the Stars in the Sky: Information Files by Spartan-076A reviews
Information Files for my Halo/Stargate fanfiction I have in development. Rated M for intense scenes of combat and violence portrayed in the main story.
Crossover - Stargate: SG-1 & Halo - Rated: M - English - Sci-Fi - Chapters: 4 - Words: 1,427 - Reviews: 3 - Favs: 7 - Follows: 10 - Updated: 19h - Published: 3/23
Galaxy of Inheritors and Usurpers by HaloZealotDemon reviews
The Separatists destroy the Covenant in a brutal war, yet in the 2570s remnants persist, but their defeat is inevitable. However, The Gods have other plans. The Migrant fleet deciding to escape through a dormant Relay into unknown space, meet "Sleep-deprived Titans with negative zero fucks to give." -LTCOL Church. Heavy AU, RVB elements, swearing.
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi/Drama - Chapters: 3 - Words: 28,112 - Reviews: 85 - Favs: 355 - Follows: 501 - Updated: 4/21 - Published: 12/25/2022 - Arbiter, T. Hood, Han'Gerrel, Rael'Zorah
Always Be a Good Boy by Anquietas reviews
A Spartan and his A.I. companion will stumble across the Colonies of Kobol just a few days before the Cylon attack. That is where our story will truly begin.
Crossover - Halo & Battlestar Galactica: 2003 - Rated: T - English - Sci-Fi/Adventure - Chapters: 12 - Words: 75,179 - Reviews: 83 - Favs: 123 - Follows: 187 - Updated: 4/21 - Published: 12/26/2023 - OC, W. Adama, L. Adama/Apollo, K. Thrace/Starbuck
Halo: Spartan Spider by G4dgetJunior reviews
Peter Parker defeats Thanos on Titan. In doing so, he, too, dies. However, this is not the end. Spidey is given a second chance in a different universe. One that desperately needs a hero. Halo X Marvel Spiderman AU fanfic. Peter Parker X Karen, MC X Cortona.
Crossover - Avengers & Halo - Rated: T - English - Sci-Fi/Adventure - Chapters: 4 - Words: 7,602 - Reviews: 18 - Favs: 80 - Follows: 102 - Updated: 4/20 - Published: 8/23/2023 - Spider-Man/Peter Parker, A. J. Johnson, C. Halsey, Cortana
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: M - English - Sci-Fi/Adventure - Chapters: 17 - Words: 66,245 - Reviews: 311 - Favs: 911 - Follows: 1,347 - Updated: 4/20 - Published: 12/26/2021 - OC, Tali'Zorah, Admiral Hackett, Rael'Zorah
War of the Hearts by World Archivist
The Human-Covenant war had left an undeniable scar on the galaxy. Now in the year 2553, a new enemy shall appear, and a new war shall begin, one with origins in a time before the Halo Array.
Crossover - Halo & Kingdom Hearts - Rated: M - English - Sci-Fi - Chapters: 1 - Words: 1,398 - Favs: 1 - Follows: 1 - Published: 4/19
Kingmaker by Temujin the Obliterator reviews
In the midst of a Cold War between the CIS and the UNSC. An ONI agent and an ARC trooper discover a more sinister plot beneath the surface and most work together to orchestrate a coup against the Chancellor.
Crossover - Star Wars & Halo - Rated: M - English - Adventure - Chapters: 2 - Words: 29,777 - Reviews: 3 - Favs: 6 - Follows: 15 - Updated: 4/19 - Published: 4/12
Mantle of Responsibility by GeorgeQuartz reviews
10 Years after the Human-Covenant war and an Alliance between the Sangheili and Humanity keeps that Milky Way stable, soon though, a dead battlefield is discovered and the discovery encounter leads to UNSC military forces being deployed to the edge of the Andromeda Galaxy, also known as...The Outer Rim. (21BBY & 2564 AD Story start year)
Crossover - Halo & Star Wars - Rated: T - English - Sci-Fi - Chapters: 28 - Words: 282,555 - Reviews: 408 - Favs: 944 - Follows: 1,072 - Updated: 4/18 - Published: 6/17/2020 - Ahsoka T., Fives, Rookie, OC - Complete
A Better Tomorrow by DLTA-BOT reviews
How can one man change a world ravaged by corruption, war, and poverty? And if that world isn't his own, why would he want to? In a life built out of discontent and fear, maybe the opportunity for change lies in a new place and a fresh start. A new beginning. And, maybe, he can look forward to a better tomorrow. - A companion story to Wrong Place, Right Time: A Hero's Story.
Crossover - Halo & Cyberpunk 2077 - Rated: T - English - Sci-Fi/Adventure - Chapters: 1 - Words: 9,223 - Reviews: 7 - Favs: 34 - Follows: 40 - Published: 4/16 - OC, V, Johnny Silverhand, Rogue A.
In Fire Forged (StargateHalonBSG fusion) V2 by Illuviar reviews
The Goa'uld System Lords led by Ra fight for survival and domination against the Covenant. The Prophets in their lust for power have proclaimed Humanity's extermination, and decreed the destruction of the False Gods. Long dormant and forgotten Stargates come to life to bring UEG's Earth and the Colonies of Cobol into a bloody contact with the galaxy at large...
Crossover - Stargate: SG-1 & Halo - Rated: T - English - Sci-Fi/Adventure - Chapters: 19 - Words: 68,079 - Reviews: 72 - Favs: 128 - Follows: 183 - Updated: 4/15 - Published: 3/26 - J. O'Neill, Master Chief/John-117
A different journey by Dragon Cat84 reviews
The Master Chief is found by the Atlantis Expedition, how did the Master Chief end up in the early 21st Century and in the Pegasus Galaxy?
Crossover - Halo & Stargate: Atlantis - Rated: T - English - Chapters: 7 - Words: 28,078 - Reviews: 21 - Favs: 54 - Follows: 84 - Updated: 4/15 - Published: 3/24
Stained Ambition by Halgen reviews
We’ve been separated for too long. Enough is enough. The Covenant, ONI, and now a literal god. Well… bring it for I’m a warrior from beyond the stars and… I have been given a chance. One. That. I. Will. Take. A safe haven for both us, a place where we could be brother and sister again. For we were together before and we will be together in the end. We promised after all.
Crossover - Halo & Genshin Impact - Rated: M - English - Adventure/Sci-Fi - Chapters: 7 - Words: 53,486 - Reviews: 13 - Favs: 39 - Follows: 56 - Updated: 4/14 - Published: 7/17/2023 - OC, Aether, Paimon
The Fifth-Race Reclaimers: Upheaval by Piero217 reviews
Over the course of eight months following their triumph over the Precursor threat, the Fifth-Race Reclaimers have been working hard to learn more about each other and their respective galaxies—sometimes without the other side even knowing. But with a new threat looming on the horizon, will they be prepared to defend every living creature they have been entrusted with?
Crossover - Stargate: SG-1 & Halo - Rated: T - English - Sci-Fi/Drama - Chapters: 3 - Words: 8,405 - Reviews: 11 - Favs: 72 - Follows: 103 - Updated: 4/14 - Published: 6/8/2019 - S. Carter, D. Jackson, Teal'c, Arbiter
Mankind and Hope: A Halo and Star Wars Collection by Mayflower073 reviews
A collection of short stories in a merged universe for Halo and Star Wars during the last year of the Clone War and the later years of the Insurrection. The United Nations discovers a galactic community ravaged by civil war, within which a charismatic envoy beseeches them to choose a side.
Crossover - Star Wars & Halo - Rated: M - English - Sci-Fi/Tragedy - Chapters: 7 - Words: 64,758 - Reviews: 2 - Favs: 9 - Follows: 7 - Published: 4/14 - Obi-Wan K., Count Dooku, Master Chief/John-117, J. Cutter
Operation: WASTELAND by Spartan-049 reviews
Whilst exploring the depths of Gamma Halo, a lone Spartan inexplicably finds himself transported to an irradiated wasteland on a planet that shouldn't have one; Earth. Hoping to find some answers he enlists the help of a local courier already on a quest of his own to find something.
Crossover - Fallout & Halo - Rated: T - English - Adventure/Western - Chapters: 6 - Words: 18,679 - Reviews: 6 - Favs: 21 - Follows: 32 - Updated: 4/14 - Published: 2/2
The Song of Infinity by Johnnieboy11 reviews
As the battle of Christophsis is ongoing, a new faction emerges over the crystalline battlefield. Confusion, worry and fear permeate the Republic lines until a first shot is fired in anger by the Confederacy. A change stirs in the Force, the Reclaimers are awakening and the Galaxy at large is powerless to stop them.
Crossover - Star Wars & Halo - Rated: T - English - Sci-Fi/Adventure - Chapters: 29 - Words: 119,550 - Reviews: 212 - Favs: 732 - Follows: 912 - Updated: 4/14 - Published: 3/23/2023 - Anakin Skywalker, Ahsoka T., Master Chief/John-117, T. Lasky
Debt unpaid by Dgreen20 reviews
Some debts can't be wiped away. A monetary debt can be paid off in time, but a life debt can never truly be repaid. A super soldier, torn from the losing end of a war for humanity's survival. A girl, trapped in a tower her entire life. How can the soldier who has nothing, repay a woman who yearns for her freedom? "Don't make a girl a promise, if you know you can't keep it".
Crossover - Halo & BioShock - Rated: T - English - Adventure/Sci-Fi - Chapters: 11 - Words: 75,560 - Reviews: 23 - Favs: 86 - Follows: 129 - Updated: 4/13 - Published: 12/3/2017 - [OC, Elizabeth] Booker D.
Stargate Atlantis Fire Within by heavyneos reviews
Just as the Atlantis team think they have finally found a reprieve from the Wraith thanks to a fortuitous accident something hidden in deep space and from another world may bring more than one complication to the fight
Crossover - Halo & Stargate: Atlantis - Rated: T - English - Sci-Fi/Adventure - Chapters: 7 - Words: 27,157 - Reviews: 54 - Favs: 119 - Follows: 147 - Updated: 4/13 - Published: 9/8/2023 - Rodney M., John S., OC
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: 85 - Words: 1,003,347 - Reviews: 233 - Favs: 500 - Follows: 546 - Updated: 4/13 - Published: 9/29/2020 - Sole Survivor, Arthur Maxson, Shaun, OC
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: 19 - Words: 103,704 - Reviews: 362 - Favs: 1,162 - Follows: 1,185 - Updated: 4/13 - Published: 1/13/2016 - Master Chief/John-117, Diana of Themyscira/Wonder Woman, Shiera H./Shayera Hol/Hawkgirl
Fleet of the Homeward Bound: Book two by Sora with an S reviews
Spirit of Fire, Hyperion, Jupiter II, Archangel and a few Firestorms just want to know where they are and how to get home. Also, they want to know why they're all girls in space now.
Crossover - StarCraft & Halo - Rated: T - English - Chapters: 2 - Words: 15,601 - Reviews: 10 - Favs: 28 - Follows: 40 - Updated: 4/12 - Published: 8/9/2023
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: 12 - Words: 55,260 - Reviews: 41 - Favs: 131 - Follows: 158 - Updated: 4/12 - Published: 7/31/2022 - [SPARTAN-B312/Noble Six, Fallen]
Eye of Aegis by UNSC Kawakaze
Eye of Aegis, a Halo x Azur Lane crossover with one Teutonic demoness in particular, but with some twists. (Pre Human-Covie War, moderately OP MC)
Crossover - Halo & Azur Lane/碧蓝航线 - Rated: T - English - Sci-Fi - Chapters: 3 - Words: 14,184 - Favs: 13 - Follows: 16 - Published: 4/12 - [Prinz Eugen, SPARTAN-B312/Noble Six] P. Cole, M. Stanforth
3.4K | Page 1 2 3 4 11 .. Last Next »