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Gamma Effect by GasPoweredOrca
Fandoms: Halo (Video Games) & Related Fandoms, Mass Effect Trilogy
20 Sep 2025
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Summary
Three Spartans have been sent to the ruins of New Mombasa on a mission, to extract a device the Covenant have uncovered, by any means necessary even if they all are to die. But for the soldiers of the Spartan-III programs Gamma Company this is what they trained for, prepared for all their lives. A suicide mission to deal as much damage as possible.
Emma Shepard didn't ask to be brought back to life, didn't ask to work for a shadowy terrorist organization and she sure as hell didn't ask to be sent on a mission to stop an Alien species known as the collectors from abducting humans but if she doesn't do it, no one else will. Building her crew she is willing to do whatever it takes to get to the bottom of the abductions, why they are targeting humans, and finally stop them... at all costs.
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Summary
The year is 2552. The Covenant have begun their assault on Earth. The battle for the Sol System is in full swing. Spartan III Gamma company has been deployed to the frontlines in order to buy as much time for the UNSC as possible, but one particular Spartan finds herself being diverted from the mission, and instead placed within a special task force directly under the jurisdiction of ONI. Team Kilo Nine, composed of mixed personnel from various elements of the UNSC, grouped together to achieve a mission critical to the survival of Earth and her colonies.
Meanwhile, a unique group of elite Sangheili warriors, tasked by their clan to root out rumors and suspicion of high treachery within the Covenant’s very own ranks, becomes caught up in the battleground, forced to confront both friend and foe alike in order to succeed in their goals, and discover the true secretive objectives of the holy order’s hierarchs.
A warrior discovers serenity. A feral supersoldier learns to be human. And everything comes crashing down.
(c)2025 - Published on Wattpad and Ao3
Series
- Part 1 of Halo: Kilo Nine
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Bellum Terranum by F15E_Strike_Eagle
Fandoms: Star Wars: The Clone Wars (2008) - All Media Types, Star Wars Prequel Trilogy, Halo (Video Games) & Related Fandoms, Star Wars, Star Wars - All Media Types
17 Sep 2025
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The Republic after finding a small planet on the edge of their space, is introduced to the Milky Way. for 4 decades an unstable peace has emerged, with both the Republic and the Terrans having the Galaxy on the edge. With the outbreak of the Clone Wars however, the Terran Federation is now in dire straights, caught between 2 juggernauts, the Federation is forced to play ball.
Cross posted from FFN.net
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HALO: Blue Armour by Lemon_The_Axolotl
Fandoms: Halo (Video Games) & Related Fandoms, Star Wars: The Clone Wars (2008) - All Media Types, Star Wars - All Media Types, Star Wars: The Bad Batch (Cartoon), The Mandalorian (TV)
16 Sep 2025
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Summary
Din is having a great day; Grogu is sick, Paz is arguing with Bo-Katan again, and The Armourer has locked herself away in her forge for whatever reason. Not to mention all of Mandalore has decided today is the day to have a crisis.
He should have expected today to get worse when the Darksaber started talking in riddles, and reports of six sickly looking children biting people started turning up on his desk. Honestly, he really should have connected the dots sooner.
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John-117 was having a great day. Being tossed through a portal onto a random planet, with two of his (now alive) dead teammates, and his four traumatised SPARTAN companions. He was also on the verge of a mental breakdown.
Sam-034, meanwhile, was having an argument with the voice in his head, which seemed insistent on him learning a nice sounding language called Mando'a, and trying to get him to sleep a full nine hours.
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A What If Au where Donut and Caboose go to different teams. Caboose on the Red Team and Donut on the Blue Team.
FROM THE WRITER OF INTO THE CHORUS, ANOTHER AU.
Definately not planning something. Trust me.
Series
- Part 7 of roosterteeth multi-verse.
- Part 1 of Caboose vs. Donut
- Part 4 of the fixing it series
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Lanolin and Her Spartan by John2851
Fandoms: Sonic the Hedgehog (IDW Comics), Halo (Video Games) & Related Fandoms, Sonic Boom (Cartoon)
14 Sep 2025
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Summary
Dr. Eggman's robots have planted its invasion in one of the resistance's supply source and Sonic and company had their hands tied as to how are they going to take it back. That is until they decided to unthawed their one and only legendary Spartan who has managed to win the heart of a certain sheep, who have only heard stories about him and got the opportunity to see him in action. Can Lanolin keep her mind of fighting Eggman with the Resistance or will her heart starts to talk and want to be apart of her Spartan's life?.
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Canis Lupus (your time is now) by WinterXAssassin
Fandoms: Halo (Video Games) & Related Fandoms
14 Sep 2025
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Summary
For the strength of the pack is the wolf, and the strength of the wolf is the pack.
—Rudyard Kipling, The Jungle BookEveryone knows lone wolves can't survive for long without a pack. But for Artemis-B312, Noble Team are a pack she's afraid of fitting into. Compared to them, she feels other, inhuman. In their eyes, she's an intruder, an unwanted stray. She has no place in their dynamic.
However, with the Covenant invading humanity's fortress world... She's going to have to find a place, and fast. Reach's survival — and the survival of humanity itself — depends on it.
Series
- Part 1 of Amaranthine
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Summary
Halo: Feet First covers the story of a team of UNSC Orbital Drop Shock Troopers of the 7th Battalion, 105th Shock Troops Division. The main character, Duncan Iris, faces the full horror of the covenant war effort against humanity as well as the brave retaliation of outnumbered and outgunned UNSC forces. However, he also witnesses the turning of the tides as the war progresses.
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All That Is Gold Does Not Glitter by XenoWrites
Fandoms: Halo (Video Games) & Related Fandoms, 幼女戦記 | Youjo Senki | Saga of Tanya the Evil - Carlo Zen (Light Novels), 幼女戦記 | Youjo Senki | Saga of Tanya the Evil (Manga), 幼女戦記 | Youjo Senki | Saga of Tanya the Evil (Anime)
08 Sep 2025
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Tanya von Degurechaff is free. Her third life has been difficult, but through intelligence, perseverance, and sheer bloody-mindedness, she has escaped the burning embers of the Insurrection and entered the much safer world of academia.
Now, she is finally being offered the job she has always longed for with the United Nations Space Command. With it comes an unlimited budget, and the chance to save human civilization with great strides in the field of communication and transportation.
Unfortunately, the Office of Naval Intelligence has other plans for the young Doctor Catherine Halsey.
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The new class of Spartans-IVs are stuck at the Avery J. Johnson training facility under the command of Spartan Commander Agryna following the Created Uprising. Cabin fever is the biggest threat to the Spartans and Marines at the facility... until it isn't.
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Halo: Reach: Recouping The Will by NeuromancaEspa
Fandoms: Halo (Video Games) & Related Fandoms
04 Sep 2025
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Summary
After Thom-A293's sacrifice, alongside her arm being blown off, Kat-B320 has not been up to standard. This causes concern from Rosenda-A344, who tries to comfort her...
- Language:
- English
- Words:
- 1,181
- Chapters:
- 1/1
- Hits:
- 32
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The Spartan From Themyscira by FoundUnknown01
Fandoms: Halo (Video Games) & Related Fandoms, Batman - All Media Types, Superman - All Media Types, Justice League - All Media Types, Wonder Woman - All Media Types, WildC.A.T.S. (Comics)
04 Sep 2025
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Summary
For the last two thousand years, Themyscira has isolated itself from the rest of mankind. Building itself up and ignoring the plights of the world which surrounds it. Unfortunately, their calm is shattered when a strange craft falls to earth on the Eastside of their island. Leading to the first man to ever grace their shores since they isolated themselves from the world.
How will they react to this strange man and his AI partner, who are far more concerned with conspiracies plaguing the outside world and returning to their home? Even if it means dragging their civilization into the light of the modern world.
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Spiritual "sequel" to Halo:Reach.
The military bastion Reach has fallen to the Covenant. Untold millions perished in the fighting, devastating the UNSC and leaving its highest echelons of command reeling in the aftermath. Despite humanity's best efforts, the writing is on the wall: the Covenant will be at Earth soon, Cole Protocol be damned. What remains of the UNSC's standing military assets have been redeployed to Sol as part of Operation: CASTLE in an effort to reorganize, bolster defenses, and lay the groundwork for an eventual evacuation. Humanity has laid all its cards on the table.
However, hidden within the background of CASTLE, amid the seemingly endless personnel transfers and deployment orders, a handpicked group of warriors from SPARTAN-III Gamma Company have been pulled from Onyx. Fresh out of a hellish SPARTAN-III training regimen, the young spartans of Team Tachi are eager to test themselves in their first true mission - to assassinate a certain high-ranking Sangheili fleet admiral.
But plans change. They always do. And when the Covenant arrive at Earth in force, Team Tachi will have to lay it all on the line in the ultimate battle for the fate of humanity.
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Magnificent Thunder by Project ISTARI (Project_ISTARI)
Fandoms: Halo (Video Games) & Related Fandoms
02 Sep 2025
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Summary
Never underestimate the strategic impact of a dedicated Spartan-IV duo and a high-power AM rifle.
- Language:
- English
- Words:
- 3,923
- Chapters:
- 1/1
- Kudos:
- 1
- Hits:
- 19
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Summary
Spartan III Fireteam HAVOC is a unit that consists of ragtag Spartan-III personnel working directly under the Naval Special Warfare Command (NAVSPEWARCOM), which will use excessive force and cause excessive destruction at any chance they get
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Halo: Demons and Dragons by LordSogga
Fandoms: Halo (Video Games) & Related Fandoms, Elder Scrolls V: Skyrim, Elder Scrolls
26 Aug 2025
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Summary
It's 2560, and Humanity is lower than it has ever been before. After barely surviving 28 years of genocide from an ancient alien religious collective known as the Covenant, betrayal from their own artificial intelligences by a group named the Created, and the crushing loss of the UNSC's flagship Infinity at the hands of the formidable mercenary group called the Banished, humanity has become desperate for a way to fight back.
Amidst this desperation, two SPARTAN Headhunter operatives are set on a mission that leads humanity to its strangest discovery yet:
A world unbound by the conventional laws of physics, seemingly stuck in the Middle Ages, and threatened to end entirely with the emergence of powerful, ancient evils.
Meanwhile, the fate of a young Khajiit heroine, Tamriel, and all of known existence is forever altered with the arrival of soldiers from beyond the Aurbis.
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Zeta Halo: Survival Stories by genesisgrey
Fandoms: Halo (Video Games) & Related Fandoms
21 Aug 2025
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Summary
Master Chief wasn’t the only person stranded on Zeta Halo. Infinity’s crew had to survive against all odds, without support and only each other to rely on.
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Halo: Meta Wolves by Kingpin_Lunamaria
Fandoms: Halo (Video Games) & Related Fandoms, 碧蓝航线 | Azur Lane (Video Game), Call of Duty (Video Games), Demento | Haunting Ground
19 Aug 2025
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Summary
During the Human-Covenant War, a long lost asset is put back into use. Once, their battlefield was on Earth's seas. Now, the theater of space is their next front.
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Mankind and Hope: Pilgrimage by Mayflower (mayflower097)
Fandoms: Halo (Video Games) & Related Fandoms, Star Wars - All Media Types, Star Wars: Rebellion Era - All Media Types
11 Aug 2025
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Summary
It's been three years since the end of the Clone War. A new dark age enshrouds the galaxy. The Galactic Empire invades, glassing world after world with ruthless expediency. Earth has never been in more danger, while the Inner Colonies begin to fall, and the star destroyers tear through fleet after fleet. The only hope for Solar humanity to survive the Endwar, the last resort, is a mysterious superweapon called Halo.
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My Hero Academia: Quirks Evolved by The_Spartan_Sangheili
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga), Halo (Video Games) & Related Fandoms
10 Aug 2025
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Summary
In a distant future, humanity develops starships and reaches for the stars only to encounter a foe that threatens its entire existence.
In another not-so-distant future humanity develops extraordinary abilities called quirks, and remains on Earth in a superhuman society.
What happens when these two worlds collide?
This is the story of a Spartan, A Hero and their respective AI companions.
Contents:
Prologue: 1-3
The Birth of a Spartan (Pre-UA arc) 4-13
A Spartan Will Rise (U.A. First Term) 14 - ?