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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: 91 - Favs: 188 - Follows: 236 - Updated: 6h - 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
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 - Favs: 18 - Follows: 23 - Updated: 8h - 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: 31 - Favs: 174 - Follows: 188 - 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: 872 - Favs: 1,649 - Follows: 2,112 - 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: 525 - Follows: 786 - 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: 24 - Favs: 141 - Follows: 183 - 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: 46 - Follows: 79 - Updated: 4/6 - Published: 11/21/2023 - A. J. Johnson, Arbiter, Cortana, Summer R.
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: 16 - Words: 58,820 - Reviews: 55 - Favs: 106 - Follows: 151 - Updated: 4/6 - Published: 3/26 - J. O'Neill, Master Chief/John-117
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: 32 - Follows: 46 - 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: 8 - Follows: 13 - 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: 15 - Favs: 23 - Follows: 41 - Updated: 4/5 - Published: 4/4 - [Master Chief/John-117, Ashley W.] Arbiter, Admiral Hackett
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: 6 - Words: 23,300 - Reviews: 62 - Favs: 178 - Follows: 224 - Updated: 4/5 - Published: 3/2 - Master Chief/John-117, A. J. Johnson, Arbiter, SPARTAN-B312/Noble Six
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: 84 - Words: 994,199 - Reviews: 228 - Favs: 485 - Follows: 531 - Updated: 4/5 - Published: 9/29/2020 - Sole Survivor, Arthur Maxson, Shaun, OC
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: 6 - Words: 23,588 - Reviews: 18 - Favs: 45 - Follows: 69 - Updated: 4/4 - Published: 3/24
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: 21 - Favs: 42 - Follows: 70 - 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: 804 - Favs: 1,812 - Follows: 2,287 - Updated: 4/4 - Published: 4/16/2020 - Master Chief/John-117, SPARTAN-B312/Noble Six, Tali'Zorah, Shepard - Complete
Bellum Terranum by F35B reviews
Humanity has long since recovered from the effects of the Human-Covenant War, beginning to resettle and rebuild. The Quarians, with help from the Council, have also begun to rebuild their fallen civilization, settling pre-approved Council planets finally settling after surviving the Morning Wars. One pirate attack on a Quarian Colony however will alter the course of history...
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 4 - Words: 25,206 - Reviews: 207 - Favs: 477 - Follows: 750 - Updated: 4/3 - Published: 7/31/2023
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: 28 - Words: 116,050 - Reviews: 208 - Favs: 718 - Follows: 895 - Updated: 4/3 - Published: 3/23/2023 - Anakin Skywalker, Ahsoka T., Master Chief/John-117, T. Lasky
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
Roses and Violets by Gashadokur0 reviews
Ever heard of a giant Megacorp falling down from the sky? Neither did Night City. Until a suriving group of UNSC came down with a mishmash of a UNSC Carrier ship. That certainly gave Night City something to talk about for months. (Inspired by both the main Halo series and Red vs Blue)
Crossover - Halo & Cyberpunk 2077 - Rated: T - English - Humor/Sci-Fi - Chapters: 16 - Words: 50,519 - Reviews: 47 - Favs: 100 - Follows: 132 - Updated: 4/3 - Published: 1/26
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: 19 - Favs: 60 - Follows: 100 - 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: 14 - Follows: 29 - 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: 42 - Favs: 155 - Follows: 240 - 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: 1,464 - Reviews: 3 - Favs: 1 - Follows: 1 - Published: 4/2 - Complete
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