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HALO Mass convergence by SapphireDawn11709 reviews
Two Universe collide after the Forerunners fall and the Reapers return, will the two branches of Humanity placed in their respective Systems by a Forerunner Monitor unite or fall, only time will tell in this epic clash. When the UNSC Exploration and Research Vessel Light of Sol discover a strange artifact, they are opened up to the rest of the Galaxy after millennia of isolation.
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi - Chapters: 23 - Words: 79,389 - Reviews: 298 - Favs: 646 - Follows: 824 - Updated: 2/20 - Published: 9/18/2016 - Master Chief/John-117, Cortana, J. Garson, Tali'Zorah
Rising Tide by EliteArbiter reviews
The sudden arrival of the UNSC and ex-Covenant factions into the Andromeda Galaxy caused unmissable changes within the galactic community. But as the awe in the newcomers fades and time ticks down towards Knightfall, low tide passes unseen, and in the murkiest depths of the galaxy, the tide begins to rise... Inspired by UH-60 Nightstalker's "The Terran-Republic Affair"
Crossover - Star Wars & Halo - Rated: T - English - Sci-Fi/Suspense - Chapters: 22 - Words: 111,972 - Reviews: 437 - Favs: 611 - Follows: 785 - Updated: 2/20 - Published: 5/16/2021 - Anakin Skywalker, Master Chief/John-117, Arbiter, Rtas 'Vadumee
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: 7 - Words: 9,519 - Reviews: 13 - Favs: 35 - Follows: 48 - Updated: 2/19 - Published: 10/13/2020 - Doomguy, Master Chief/John-117, Cortana
The Last of the Brave by SuspectNutria reviews
With recent reports of the Banished using a newly-discovered planet between the UEG's Inner and Outer Colonies as a base, UNSC HIGHCOM has dispatched one of its newly-commissioned ships, the Harvest, to eliminate the threat. But this world the crew wake up to has a dark and uncertain future ahead. Will the UNSC stop the Banished from conquering Remnant? Or die protecting humanity?
Crossover - Halo & RWBY - Rated: M - English - Sci-Fi/Adventure - Chapters: 12 - Words: 79,577 - Reviews: 75 - Favs: 146 - Follows: 209 - Updated: 2/19 - Published: 2/6/2021 - OC, J. Ironwood, Winter S., Team RWBY
Wolves That Walk Alone by TheManThatWalksTheAbyss115 reviews
There's always been growing legends in Remnant. Some of fearless warriors and others of horror, but there's one that's recently been picked up by the inhabitants. A legend of a man who was more akin to a wolf without a pack, barely speaking and doing his deed before leaving without a trace. After all... some people just want isolation rather than company.
Crossover - Halo & RWBY - Rated: M - English - Sci-Fi/Adventure - Chapters: 41 - Words: 329,745 - Reviews: 4124 - Favs: 3,102 - Follows: 3,655 - Updated: 2/19 - Published: 5/8/2019 - SPARTAN-B312/Noble Six, L. Ren, Nora V.
A Lion's Heart by NoXXiMillioN reviews
Jorge 052, Noble Five, detonates the Slipspace bomb manually as the last resort. Now this black hole ripped a hole between galaxies, sending the wreckage of the Supercarrier through to the other side... to the peaceful Republic planet of Naboo. With an intergalactic war seeming inevitable, he must adapt to a different and more secretive UNSC, and enemies that are not his own.
Crossover - Star Wars: The Clone Wars & Halo - Rated: T - English - Adventure/Sci-Fi - Chapters: 21 - Words: 106,557 - Reviews: 196 - Favs: 383 - Follows: 497 - Updated: 2/18 - Published: 2/6/2021 - Anakin S., Obi- Wan K., Jerome-092, Jorge-052/Noble Five
Audax Novus by A-01 reviews
A bold new world - A strange new reality - Fresh trials, tribulations, allies, and enemies. John fell through the portal from the Mantles Approach, but his luck works in mysterious ways. Now stranded in an alternate reality, how will he strive forward? The galaxy takes a sharp turn from the world we know, and the Reaper threat looms just as large, but no longer so uncontested.
Crossover - Halo & Mass Effect - Rated: M - English - Adventure/Romance - Chapters: 25 - Words: 656,164 - Reviews: 744 - Favs: 1,454 - Follows: 1,837 - Updated: 2/17 - Published: 9/4/2020 - [Master Chief/John-117, Miranda L.] [Shepard, Tali'Zorah]
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.
Crossover - Halo & My Hero Academia/僕のヒーローアカデミア - Rated: T - English - Sci-Fi/Drama - Chapters: 1 - Words: 4,045 - Reviews: 8 - Favs: 35 - Follows: 54 - Published: 2/16 - [Samuel-034, Nejire Hado] Mirio T., T. Amajiki
Por todo lo que no dije by Zedkaii
Un sueño, un nuevo comienzo o quizás un final feliz.
Crossover - Halo & Ben 10 - Rated: T - Spanish - Romance/Adventure - Chapters: 1 - Words: 3,108 - Follows: 1 - Published: 2/16 - Master Chief/John-117, Cortana, Ben T., Rook - Complete
Halo: Spartan SOS by Memerman20 reviews
Master Chief wasn't the only Spartan to make it through the slip space stream in time on the ark you know. The screeching still fresh in his mind. But he's not sure that the flood is really gone. I do not own halo or the loud house.
Crossover - Halo & Loud House - Rated: M - English - Adventure/Sci-Fi - Chapters: 8 - Words: 14,902 - Reviews: 2 - Favs: 7 - Follows: 7 - Updated: 2/16 - Published: 11/7/2020 - Gravemind, Lincoln L., Lynn L., Sam
Brotherhood of Steel:Chronicles of the 86th UNSC Assault Corps by Johnnieboy11 reviews
A veteran fleet formed of the few survivors of Reach goes missing upon their jump toward Earth. Originally meant to reinforce the Home Fleet with a slew of fresh units, the dozen vessels now find themselves over a foreign world engaged in a familiar war of survival with a rogue army of AI and their own prejudices against each-other. A new world to protect and new challenges await.
Crossover - Halo & 86 エイティシックス - Rated: T - English - Sci-Fi/Adventure - Chapters: 20 - Words: 186,000 - Reviews: 154 - Favs: 211 - Follows: 262 - Updated: 2/16 - Published: 11/1/2021 - OC, Vladilena Milizé/Lena, Shinei Nouzen, Theo Rikka
The Perfect Storm by EliteArbiter reviews
The Chancellor is plotting his takeover as the Clone Wars rage on. The Covenant and its remnants are gone, and the UNSC and their allies have finally found peace. But when a mysterious portal appears over the Ark coupled with an ancient distress call, events no one could predict take place, and the galaxy is thrown into the perfect storm. Post Halo 4, Pre Halo 5
Crossover - Star Wars & Halo - Rated: T - English - Chapters: 17 - Words: 187,323 - Reviews: 229 - Favs: 482 - Follows: 536 - Updated: 2/16 - Published: 8/9/2020 - Aayla S., Barriss O., Ahsoka T., Carter-A259/Noble One - Complete
RWBY: War For Remnant by Be an 1an reviews
Remnant is an independant star system with a treasure trove of secrets and a coalition of planets that until fifteen years prior, fought a terrifying horde of darkness for centuries. Now in a rare moment of peace, Remnant eagerly rebuilds its war-torn civilizations, but the small systen will soon face an enemy more terrifying than anything it has ever faced.
Crossover - Halo & RWBY - Rated: T - English - Drama/Sci-Fi - Chapters: 1 - Words: 1,233 - Reviews: 4 - Favs: 11 - Follows: 15 - Published: 2/13 - Ruby R., Ozpin, Jaune A., Qrow B.
Halo: Heroes Evolved by ReaderWriterfella reviews
What if instead of just fighting villains, heroes had to fight an alien invasion too? Good thing Izuku 117 was trained for that.
Crossover - My Hero Academia/僕のヒーローアカデミア & Halo - Rated: M - English - Adventure/Romance - Chapters: 21 - Words: 45,914 - Reviews: 80 - Favs: 285 - Follows: 340 - Updated: 2/13 - Published: 10/6/2020 - Izuku M., Arbiter, Cortana, Itsuka K.
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: 51 - Favs: 81 - Follows: 91 - Updated: 2/13 - Published: 1/30/2021 - Neo-Queen Serenity, OC
Star Wars: Rise of The UNSC by IX404 reviews
When testing an experimental Slipspace upgrade, the Infinity is pulled into another galaxy. Little do they know is that soon, they will be in a fight for their lives against an opponent though to be long since defeated.
Crossover - Star Wars & Halo - Rated: T - English - Sci-Fi/Drama - Chapters: 16 - Words: 66,158 - Reviews: 175 - Favs: 443 - Follows: 569 - Updated: 2/13 - Published: 2/18/2021 - OC, Master Chief/John-117, Rtas 'Vadumee
Enduring the Flames of War by Masterdude21 reviews
A joint Asari-Turian operation salvaged a "package" from a derelict wreckage in the Terminus Systems, whereupon they release a force of war beyond their reckoning. Hoping to avoid another war, Commander Shepard recruits the "package" into her team. A simple act of kindness, unwittingly paving the way for a clash unlike the galaxy has ever seen. Fate directs the flames of war.
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi/Horror - Chapters: 42 - Words: 599,482 - Reviews: 2177 - Favs: 3,396 - Follows: 4,174 - Updated: 2/13 - Published: 11/30/2015 - Master Chief/John-117, OC, Shepard
The Promise by Mr. Blackberry reviews
During his time as a student, Naruto found something. Something that would help him greatly in the future. Fast forward he has lost his home world to the covenant. He along with the few friends that he was able to save will not stop until the covenant is brought to its' knees. That is their promise.
Crossover - Halo & Naruto - Rated: M - English - Adventure/Sci-Fi - Chapters: 3 - Words: 11,544 - Reviews: 21 - Favs: 103 - Follows: 119 - Updated: 2/12 - Published: 8/31/2020 - Naruto U., Sakura H., Hinata H.
Forward Unto Dawn by TheWizardofOzbourne reviews
Triple Crossover, TSCC/Halo w/Star Trek: Voy/DS9/TNG elements. Trapped in a universe similar to our own, Cameron and John Henry struggle to return home. To do so, three gifts, each from another universe, will get them home and entangle them in a war they thought they knew. Eventual Jameron and MC/Cortana. Updated! 02/12/2022 CH49 Posted!
Crossover - Terminator: Sarah Connor Chronicles & Halo - Rated: T - English - Sci-Fi/Adventure - Chapters: 49 - Words: 381,029 - Reviews: 597 - Favs: 250 - Follows: 307 - Updated: 2/12 - Published: 3/26/2013 - [John C., Cameron] [Cortana, Master Chief/John-117]
Still in the fight by Scepter 2-1 actual reviews
Team Prime battles to defend Earth from the Decepticons with the help of their human allies. Then one day, a mysterious ship shows up, straight out of another war, carrying one of its most hardened veterans with one of his closest friends. A man known to the enemy as a Demon. Cover image is not mine.
Crossover - Halo & Transformers/Beast Wars - Rated: T - English - Sci-Fi/Adventure - Chapters: 9 - Words: 33,387 - Reviews: 55 - Favs: 101 - Follows: 126 - Updated: 2/11 - Published: 12/13/2021 - Arcee, Bulkhead, Jack D., SPARTAN-B312/Noble Six
Halo: Didactic Punishment by That Forerunner reviews
Mere moments away from being killed, the Didacts takes one last chance at preventing Humanity from wielding the Mantle of Responsibility. And in doing so the Didact uses a device so deadly and unpredictable that the Forerunners swore to never use it again. Although for the Didact, he could care less.
Crossover - Halo & Loud House - Rated: T - English - Drama/Adventure - Chapters: 4 - Words: 12,801 - Reviews: 17 - Favs: 19 - Follows: 17 - Updated: 2/10 - Published: 7/12/2016 - Didact, OC, Lincoln L.
Soldiers, Souls, and Scythes by Tagak Miishu reviews
They say that you can't teach an old dog new tricks. Well, that saying is going to face a tuff competitor in the form of Jorge-052. What will become of a soldier on a world without any known wars going on, and more importantly than that will he be able to find out what makes him, unique, or will he only ever be a machine of war. Either way the fate of this world will be up to him.
Crossover - Halo & RWBY - Rated: K - English - Drama/Adventure - Chapters: 1 - Words: 2,118 - Reviews: 3 - Favs: 7 - Follows: 15 - Published: 2/10
A Phoenix's Rebellion by SPARTAN REAPER-9060 reviews
The Spirit Of Fire, a veteran ship of the Human-Covenant War but declared Lost With All Hands by the UNSC on February 10, 2534. Mysteriously the ship appeared over Earth but an Earth they never knew before. Rated M for my Language.
Crossover - Halo & Code Geass - Rated: M - English - Chapters: 6 - Words: 9,339 - Reviews: 6 - Favs: 45 - Follows: 58 - Updated: 2/8 - Published: 8/31/2021 - J. Cutter, Jerome-092, Lelouch L., Nunnally L.
Noble Effect by LoneSpartan52 reviews
Noble Six was alone after the death of Emile. The Pillar of Autumn had left Reach, leaving the lone Spartan behind. But what if instead of dying on Reach, fighting to his last breath, Six survived? What if he escaped Reach and headed for Earth, only to end up in another galaxy, in another war? Will he agree to fight the reapers alongside aliens? Find out in Noble Effect
Crossover - Halo & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 15 - Words: 59,725 - Reviews: 120 - Favs: 296 - Follows: 405 - Updated: 2/6 - Published: 7/3/2020 - SPARTAN-B312/Noble Six, Garrus V., Shepard, Javik
Return, Shadow of the Sundered Star by FUCKING SLAYER reviews
When gods die, do they truly stay dead? An ancient evil returns.
Crossover - Halo & RWBY - Rated: M - English - Sci-Fi/Fantasy - Chapters: 1 - Words: 583 - Reviews: 2 - Favs: 4 - Follows: 14 - Published: 2/6 - Master Chief/John-117, Team RWBY, Team JNPR
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