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The Bringers of Dawn by Zannerson reviews
Once, a star fell near the island of the Torrentine river's, Empowering the house of Dayne with the Sword of the Morning. Now another one has come, and it will bring more than just Steel and Power. The line of Dayne will enter a world greater than they ever know.
Crossover - Halo & A song of Ice and Fire - Rated: M - English - Fantasy/Sci-Fi - Chapters: 2 - Words: 23,709 - Reviews: 10 - Favs: 28 - Follows: 49 - Updated: 2/22 - Published: 2/15
War of the Old Ones by Ian the Mechanic reviews
In forgotten ages past, two near eldritch forces vied for the very life essence of the Galaxy. Unknown to the young races, that war is still ongoing. how can the UNSC, the Citadel Council or the Covenant hope to stand against such forces, when they are still embroiled in their own petty squabbling? How could they hope to survive the War of the Old Ones?
Crossover - Mass Effect & Halo - Rated: M - English - Sci-Fi/Horror - Chapters: 2 - Words: 3,580 - Reviews: 3 - Favs: 13 - Follows: 19 - Published: 2/21
On the Illusion of Might by evevee reviews
We thought ourselves powerful, able to conquer a galaxy with nothing but toys. When we overcame every challenge, breached the space between the galaxies themselves, what use were the words of a race ashamed of their own past? Yet we cannot deny that we were warned, for while a challenge to a human is laughable, a challenge to humanity is a death sentence.
Crossover - Halo & Mass Effect - Rated: M - English - Sci-Fi - Chapters: 26 - Words: 287,962 - Reviews: 1925 - Favs: 3,394 - Follows: 4,326 - Updated: 2/21 - Published: 2/21/2017 - Master Chief/John-117, Cortana, Garrus V., Shepard
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: 12 - Words: 50,057 - Reviews: 341 - Favs: 428 - Follows: 537 - Updated: 2/21 - Published: 1/23/2016
The Men From Onyx by kpmh2001 reviews
A UNSC frigate is sent into another dimension after a disaster with their slipspace drive. Now lost in unknown territory, they must attempt to befriend the population of a local planet of strange humans under constant siege from an army of monsters. Consider this a minor AU as there are some slight differences, but everything major is still in the same place.
Crossover - Halo & RWBY - Rated: T - English - Drama/Sci-Fi - Chapters: 81 - Words: 521,869 - Reviews: 1282 - Favs: 1,017 - Follows: 1,254 - Updated: 2/21 - Published: 1/13/2019 - Ruby R., Ozpin, J. Ironwood, Winter S.
Rising of the Shield Helljumper by Autistic-Grizzly reviews
After the sacred duel between the spear and shield heroes, an army of a different world appear, one that supports the Shield Hero, now with the might of the UNSC behind him ODST Lance Corporal Naofumi Iwatani will be better equipped to handle the waves and find out the secrets linked between this world and the forerunners - rated T for now -
Crossover - Halo & Rising of the Shield Hero/盾の勇者の成り上がり - Rated: T - English - Sci-Fi/Adventure - Chapters: 7 - Words: 18,978 - Reviews: 41 - Favs: 94 - Follows: 128 - Updated: 2/21 - Published: 1/2 - Master Chief/John-117, E. Buck, Naofumi I., Raphtalia
spartan returns home by phoenix emperor 23 reviews
injured on a mission the first son of minato and kushina. he found something that put him in a war he never thought was possible. on his final mission on reach he chose to be behind. with the wider of the UNSC and ONI thought he died on reach. he had a chance to go back. now he must defended his family and the woman he love from the shadows. even it means the world to think he dead
Crossover - Halo & Naruto - Rated: M - English - Romance - Chapters: 3 - Words: 10,087 - Reviews: 2 - Favs: 29 - Follows: 47 - Updated: 2/20 - Published: 11/1/2021 - [SPARTAN-B312/Noble Six, Hana I.] [Minato N., Kushina U.]
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: 297 - Favs: 636 - Follows: 814 - 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: 435 - Favs: 604 - Follows: 771 - 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: 73 - Favs: 145 - Follows: 208 - 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: 4114 - Favs: 3,092 - Follows: 3,645 - 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: 382 - Follows: 494 - Updated: 2/18 - Published: 2/6/2021 - Anakin S., Obi- Wan K., Jerome-092, Jorge-052/Noble Five
Wrong Place, Right Time: A Hero's Story by DLTA-BOT reviews
Not everyone is born a hero. Some, well, some are forced into it. Damon has no interest in being the beacon SPARTANs have become. An invincible, implacable force for good standing as humanity's shield. After the War took everything, he became the sword. He fights battles no one wants to see, and the troubled SPARTAN III is fine with that. Sometimes though, we don't get a choice.
Crossover - Fallout & Halo - Rated: M - English - Adventure/Sci-Fi - Chapters: 30 - Words: 324,029 - Reviews: 112 - Favs: 205 - Follows: 250 - Updated: 2/18 - Published: 9/29/2020 - Sole Survivor, Arthur Maxson, Shaun, OC
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: 1,447 - Follows: 1,829 - 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: 33 - Follows: 50 - 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: 153 - Favs: 206 - Follows: 259 - 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: 479 - Follows: 533 - 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: 10 - Follows: 14 - 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: 79 - Favs: 283 - Follows: 336 - 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: 80 - Follows: 90 - 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: 434 - Follows: 561 - 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: 2175 - Favs: 3,390 - Follows: 4,167 - Updated: 2/13 - Published: 11/30/2015 - Master Chief/John-117, OC, Shepard
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