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BattleTech: Combat Evolved - Definitive Edition by IX404 reviews
We all know the tale. The SLDF under Aleksandr Kerensky's command leaves the Inner Sphere forever, before evolving into the Clans following Operation KLONDIKE. What if this was not the case? What if the entire Exodus fleet suffered a misjump that propelled them into another universe, one where Humanity will reclaim an ancient inheritance? This is the story of that possibility.
Crossover - Mechwarrior/Battletech & Halo - Rated: T - English - Sci-Fi/Drama - Chapters: 12 - Words: 91,393 - Reviews: 93 - Favs: 193 - Follows: 241 - Updated: 4/9 - Published: 8/24/2023 - Master Chief/John-117, Arbiter, 343 Guilty Spark, C. Halsey
Starting a new faction in the Halo universe with StarCraft Technology by CaptainKriss S5-SIERRA-117 reviews
Jean Razak just a regular normal young adult with a balanced lifestyle between gaming,study and work. Somehow out of nowhere he was transported to another planet with similar environments to earth. He gained power called [SYSTEM] to summon the StarCraft Terran faction unit. Can he survive and return to his original home
Crossover - Halo & StarCraft - Rated: T - English - Sci-Fi/Parody - Chapters: 2 - Words: 4,247 - Reviews: 2 - Favs: 29 - Follows: 33 - Updated: 4/9 - Published: 3/29
The Ultimate Warrior - DC Justice League version by long night of solace reviews
Humanity is an impressive intergalactic empire. When John-117, supreme commander of human military and his AI friend Cortana discovers a mysterious signal from another universe, the truths and the hidden secrets will force them to ally with the native heroes on a race to save the multiverse.
Crossover - Halo & Justice League - Rated: T - English - Adventure/Sci-Fi - Chapters: 10 - Words: 142,980 - Reviews: 33 - Favs: 176 - Follows: 192 - Updated: 4/8 - Published: 5/8/2020
The Mantle of Remnant by KtyouVsWriting reviews
The Master Chief has saved Humanity at the cost of Cortana, one of his few remaining friends. More than he will admit, John relied on her, cared for her. To no longer have her means to lose another part of his humanity. Still the universe keeps going and once again, he is called to serve and protect Mankind. Now he has a choice: does he brave Remnant alone or does he embrace help?
Crossover - Halo & RWBY - Rated: M - English - Adventure/Friendship - Chapters: 31 - Words: 172,082 - Reviews: 876 - Favs: 1,660 - Follows: 2,123 - Updated: 4/8 - Published: 5/16/2019 - Master Chief/John-117
The Rook by Twisted Fate MK 2 reviews
On the way down to New Mombasa, Rookie falls into the Slipspace Rupture and ends up crashing down on Menae, high above Palaven, right in the midst of the Reaper War. From there, the war itself will shift and the fighting persists, but who knows what an ODST will add to the mix. (Redo of an older story)
Crossover - Halo & Mass Effect - Rated: M - English - Adventure - Chapters: 21 - Words: 73,190 - Reviews: 151 - Favs: 529 - Follows: 793 - Updated: 4/8 - Published: 7/8/2022 - Rookie, Shepard
Folks Need Heroes, Sensei by SSgtLuLZ reviews
"First To Fight" - words the Marine Sergeant Major lived by all his life. With his duty fulfilled to the UNSC, the Corps and humanity itself, he mysteriously finds himself embarking on yet another great journey to save a city tearing itself apart. With the values of courage, honor and discipline; can he bring order to the Academy City of Kivotos?
Crossover - Halo & Blue Archive - Rated: T - English - Sci-Fi/Adventure - Chapters: 2 - Words: 27,474 - Reviews: 26 - Favs: 155 - Follows: 210 - Updated: 4/8 - Published: 12/25/2023 - A. J. Johnson
Welcome to the Jungle by Mark Nutt 2014 reviews
In the wake of Reach's destruction at the hands of the Covenant a new Spartan team, Gold Team, is formed. During their transfer to Nassau Station a freak slipspace anomaly occurs, sending the team through space and time. Crash landing back on Earth, the team finds the human home world no longer under human control. (Unable to upload due to corruption, updated on AO3)
Crossover - Halo & Beastars/ビースターズ - Rated: M - English - Adventure - Chapters: 34 - Words: 110,879 - Reviews: 46 - Favs: 85 - Follows: 91 - Updated: 4/7 - Published: 8/31/2020 - Legosi, Yafya
Thus I Scatter Rewrite by The crimson trucker reviews
An unexpected slip-space rupture sends Summer Rose to the streets of New Mombasa. Looking for a way home, She learns a secret hidden through time. Rwby and Halo are owned by their respective owners and creators. Please support the official release.
Crossover - Halo & RWBY - Rated: T - English - Sci-Fi/Adventure - Chapters: 4 - Words: 6,154 - Reviews: 8 - Favs: 51 - Follows: 84 - Updated: 4/6 - Published: 11/21/2023 - A. J. Johnson, Arbiter, Cortana, Summer R.
Never Truly Alone by SuspectNutria reviews
The Office of Naval Intelligence has detected multiple slipspace ruptures at an unknown system right next to human space, prompting HIGHCOM to send a Point Blank-class prowler to perform reconnaissance. Unbeknownst to them, this world contains many ancient secrets they and the natives are unaware of. The future of Remnant is uncertain as the Banished begin conquering this world...
Crossover - Halo & RWBY - Rated: M - English - Sci-Fi/Adventure - Chapters: 1 - Words: 15,513 - Reviews: 4 - Favs: 36 - Follows: 64 - Published: 4/6 - OC, Winter S., Team RWBY
Halo: Iron Kingdoms by jjimenez042v reviews
After the final battle of the ark, The Master Chief and Cortana found themselves on planet that mix steam-power technology with magic as great kingdoms fight each other supremacy. Force to adapt this new world they must forge alliance with unlikely people while dealing with strange enemies while they look for way home.
Crossover - Halo & Warmachine - Rated: M - English - Adventure/Sci-Fi - Chapters: 2 - Words: 11,236 - Reviews: 8 - Favs: 9 - Follows: 17 - Updated: 4/5 - Published: 3/16
Book One: Harvest by Believer218 reviews
The year is 2583. Humanity stands strong, even twenty-six years after a disastrous first contact. They are on a path to getting a human into the Citadel Council's Special Tactics and Reconnaissance. But that human is soon to discover that the Citadel isn't the only conglomerate of aliens. Rated M for graphic depictions of violence.
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 2 - Words: 7,169 - Reviews: 16 - Favs: 30 - Follows: 61 - Updated: 4/5 - Published: 4/4 - [Master Chief/John-117, Ashley W.] Arbiter, Admiral Hackett
The Spartan of the Planet of the Apes by Scepter 2-1 actual reviews
It's been years since Noble Six and Auntie Dot found themselves in an alternate Earth being ravaged by a deadly plague. Now, a new threat emerges in the form of evolved and highly intelligent apes. Can Six and Dot ensure mankind's dominance? Or will they fall in the wake of the Ape uprising? Cover image does not belong to me.
Crossover - Planet of the Apes & Halo - Rated: T - English - Adventure/Drama - Chapters: 3 - Words: 12,495 - Reviews: 23 - Favs: 46 - Follows: 76 - Updated: 4/4 - Published: 11/23/2023 - Caesar, SPARTAN-B312/Noble Six
Spirit Unto Dawn by free man writer reviews
Spartan's found only to be lost. A ship filled with humans in a galaxy not their own. The Spirit of Fire finds itself with new allies in a galaxy they are unfamiliar with, dealing with its own set of problems and apocalyptic enemies. Co-created and written with BulletStormX. UNDERGOING REWRITE AND REVAMP
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi/Adventure - Chapters: 16 - Words: 122,216 - Reviews: 807 - Favs: 1,824 - Follows: 2,295 - Updated: 4/4 - Published: 4/16/2020 - Master Chief/John-117, SPARTAN-B312/Noble Six, Tali'Zorah, Shepard - Complete
Halo Vahrian by Krota reviews
Ever since the war ended years ago spartan 005 had to do one last task, sacrificing his own life to end the last remaining covenant fleet for him to be able to save earth from their last attempt at glassing the planet... S-005 thought he was gonna end up in the light but what he didn't know is that he had woken up in another world known to many as vahrian instead of earth.
Crossover - Halo & Call of Duty - Rated: M - English - Sci-Fi/Fantasy - Chapters: 10 - Words: 77,068 - Reviews: 6 - Favs: 4 - Follows: 3 - Updated: 4/3 - Published: 3/12 - OC, Grace-093, C. Halsey, Kate Laswell
Autumn's Fury by AuthorOfTheHorizon reviews
A world falling to darkness. A ship fleeing a world that's already succumbed to its death. Fate sets the two on a collision course, pitting the brave men and women of the UNSC Pillar of Autumn against a foe even more mysterious than the Covenant.
Crossover - Halo & RWBY - Rated: T - English - Adventure/Sci-Fi - Chapters: 3 - Words: 15,408 - Reviews: 21 - Favs: 62 - Follows: 108 - Updated: 4/3 - Published: 3/30 - Master Chief/John-117, J. Keyes, J. Ironwood, Ozpin
New Mombasa The Rookie And Engineer by jabinker reviews
Rookie and Tali'Zorah, both separated from their squads and lost in the Mega-City of New Mombasa must work together to survive the Covenant forces to find clues of where their squads are and to also complete the mission, save New Mombasa.
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi - Chapters: 1 - Words: 3,959 - Reviews: 6 - Favs: 18 - Follows: 35 - Published: 4/2 - Rookie, Tali'Zorah
Nier: Great Journey by RamPluto reviews
Finding herself on an unknown ringworld, alone save for her Pod, 2B finds herself thrusted into the middle of an unknown and seemingly intergalactic conflict. With the aid of the Master Chief, 2B will find herself dealing with two worlds, one where Humanity is extinct and the other where war is a constant ever looming threat, to all of mankind and existence itself.
Crossover - Halo & Nier - Rated: T - English - Sci-Fi/Adventure - Chapters: 4 - Words: 20,623 - Reviews: 45 - Favs: 163 - Follows: 248 - Updated: 4/2 - Published: 2/20 - Master Chief/John-117, 2B, Cortana, 9S
April Fools 2024 by zzzxxc1 reviews
I wrote this a few months back and forgot to publish it yesterday, epic fail
Crossover - Star Wars & Halo - Rated: T - English - Humor - Chapters: 1 - Words: 1,219 - Reviews: 3 - Favs: 1 - Follows: 1 - Published: 4/2 - Complete
Remnant's YAPPENING by SuspectNutria reviews
Yapyap THE DESTROYER is ready to conquer the galaxy after dabbing on the Spirit of Fire and Banished on the Ark with his Unggoy brethren. His first target? Some worthless planet called 'Remnant', or whatever the natives called it. All will bow down to Yapyap THE DESTROYER! (A very stupid April Fools' crack fic shitpost)
Crossover - Halo & RWBY - Rated: M - English - Humor/Sci-Fi - Chapters: 1 - Words: 3,956 - Reviews: 1 - Favs: 4 - Follows: 3 - Published: 3/31 - J. Ironwood, Team RWBY - Complete
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: 3 - Words: 1,150 - Reviews: 2 - Favs: 7 - Follows: 10 - Updated: 3/31 - Published: 3/23
Sins Of A Galactic Empire Reborn by zzzxxc1 reviews
When the Milky Way is revealed to the universe at large by a derelict CIS warship, the UEG are forced to become members of the transgalactic community, but its existence is soon threatened by the decline of the Republic, and the rise of an Empire. Adopted from SpaceCowboy2013.
Crossover - Star Wars & Halo - Rated: T - English - Sci-Fi - Chapters: 21 - Words: 156,042 - Reviews: 1067 - Favs: 2,034 - Follows: 2,593 - Updated: 3/31 - Published: 7/28/2018 - Anakin Skywalker, Obi-Wan K., Master Chief/John-117, Cortana
Azur Lane 3: ODST by Animeak116
The Sirens, a alliance of synthetic hominoid machines, have waged a genocidal war against the Humans. Drop into New Mombasa as the AI of Battle Group Row and ODST squad Alpha 9 descend into the City. however there Spartan lll ally senses something weird is going on.
Crossover - Halo & Azur Lane/碧蓝航线 - Rated: M - English - Sci-Fi/Adventure - Chapters: 3 - Words: 7,661 - Favs: 6 - Follows: 10 - Updated: 3/31 - Published: 1/21 - [OC, Arizona] E. Buck, Nevada
ARES:The Gods of War by Johnnieboy11 reviews
Mankind's Greatest Hero has finished his mission once more. Saving Earth from the Didact and his weapon of mass-recruitment, the Composer, the Master Chief and his AI companion, Cortana, find themselves mysteriously transported to a strange variation of Earth, where machines rule the surface and mankind hides below. The SPARTAN and those that join will fight to Reclaim the world...
Crossover - Halo & Goddess of Victory: Nikke - Rated: T - English - Adventure/Sci-Fi - Chapters: 45 - Words: 180,872 - Reviews: 460 - Favs: 547 - Follows: 703 - Updated: 3/30 - Published: 11/29/2022 - Master Chief/John-117, Cortana, Commander, Rapi
Halo: Earth's Mightiest Heroes by Julian 10 reviews
The Master Chief, humanity's greatest hero, is suddenly transported into another universe—a universe full of great heroes. But when it comes to facing a universe full of unknowns, the Master Chief will not be facing it alone. Joining him will be Earth's mightiest heroes in the Avengers. He will face threats of all kinds and complete a prophecy that foretold his coming.
Crossover - Halo & Avengers: Earth's Mightiest Heroes - Rated: M - English - Sci-Fi/Adventure - Chapters: 1 - Words: 4,311 - Reviews: 4 - Favs: 22 - Follows: 32 - Published: 3/30 - Master Chief/John-117, Cortana, Captain America, Iron Man
In Fire Forged (StargateHalonBSG fusion) by Illuviar reviews
The Supreme System Lord Ra has been missing for a year, the System Lords are straining their bonds, at a perilous time. The alien Covenant has proclaimed the Goa'uld and their servants, as False Gods and Heretics to be exterminated. Meanwhile, the beleagued UNSC struggles for survival, while the 12 Colonies of Kobol are none the wiser about the dangers lurking in the dark...
Crossover - Stargate: SG-1 & Halo - Rated: T - English - Sci-Fi/Adventure - Chapters: 7 - Words: 21,482 - Reviews: 24 - Favs: 115 - Follows: 143 - Updated: 3/26 - Published: 10/23/2020
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