2542. Humanity lost the war against the Covenant, and has been assimilated into the galaxy-spanning conglomerate. John-117 and his crew, formerly humanity's greatest champions, were forced into a life of crime in order to survive. Aboard the Firefly-class ship Serenity, they travel the galaxy with one mission: get a ship, get a crew, keep flying.

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.

The war against the Covenant ended, but something else pressed humanity to the verge of extinction like they never did. Now, Noble 6 rises again to defend humanity like he had done before, and make humanity into something strong like it was so long ago. The one thing his enemies keep wondering is why they hear boss music.

A collection of short stories in a merged universe for Halo and Star Wars during the last year of the Clone War and the later years of the Insurrection. The United Nations (AU) discovers a galactic community ravaged by civil war, within which a charismatic envoy beseeches them to choose a side. Experience the fanfic that got me into grad school! (Cross-posted from AO3, same name)

From Halo's ashes, a mismatched Alliance is born. UNSC soldiers now serve alongside both Batarian deserters and shifty Jackal Space Pirates. Now Shepard and Master Chief have to keep these strange bedfellows from killing one another before they can stop an emergent new threat to the galaxy. The Next Swashbuckling Chapter of the Wormhole Chronicles.

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)

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.

War and economy are the only things we know. If your civilization wants to negotiate with us, then we will invade your market with our resources. If you want war, we will make you fight among yourselves, and then we will come and pick up the ashes.

In a twist of fate, the UNSC Spirit of Fire arrives in the Star Wars galaxy, where it crosses paths with the daring Ghost crew. Together, they defeat an Imperial Star Destroyer, integrate a hyperdrive, and forge a strong alliance. This unexpected alliance kindles a glimmer of hope, hinting that the Spirit of Fire may yet navigate its way home.

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.

The year is 2583. Humanity stands strong, even twenty-six years after a disastrous first contact. But it seems that wherever they go, war will follow. And this war will grip the galaxy like no other. The first adventure of Mass Effect: The Reclaimer Saga. Rated M for graphic depictions of violence.

Unofficial sequel/AU/Multi-Xover to "The Last Spartan" by DinoJake. After the defeat of the Reapers, Sapient races stopped aging (believed to be caused by the wave that reprogrammed the Reapers). Made sustainable thanks to Replicators, Dyson Spheres, & Magic giving near infinite land & resources. 3 Powers battle for the soul of the Galaxies: The Space Forces, Pirates, & The Outlaws

Unknown to the Citadel Council, the Human-Covenant war nears its vicious end. Miranda Keyes is seconds too slow. Delta Halo fires, leaving UNSC space as a lifeless snapshot in time. The Citadel must morn the loss of a civilization they never knew.

The Galactic Ikarian Imperium has, since it's conception, had a tough stance on bullies. They ruin just about everything and promote a cycle of hatred. So, when they explore an L-gate of mysterious construction and end up in totally unfamiliar territory during the Siege of Reach, what do they do? Kick the shit out of the Covenant, that's what.

She was supposed to die here. Yet she finds herself on a new world. She has never been here but it welcomes her home like a wayward daughter that returned. Now she finds a new purpose. But how is she going to handle it all with these random flashbacks to a life she didnt live?

Her Metroid DNA had taken over, resulting in a monstrous transformation. Unable to control her powers, when attempting to escape ZDR, her ship loses power due to her actions. She can't remember what happened after that, but now, all she sees is the blackness of space, left drifting, alone. In the distance, the broken body of a frigate is seen, with the name of Forward Unto Dawn…

Just as the Atlantis team think they have finally found a reprieve from the Wraith thanks to a fortuitous accident something hidden in deep space and from another world may bring more than one complication to the fight

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.

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?

How can one man change a world ravaged by corruption, war, and poverty? And if that world isn't his own, why would he want to? In a life built out of discontent and fear, maybe the opportunity for change lies in a new place and a fresh start. A new beginning. And, maybe, he can look forward to a better tomorrow. - A companion story to Wrong Place, Right Time: A Hero's Story.

Nox is falling under the Covenant, and its people are retreating. But some aren't in a place where they can reach help. Alex Masters is one. Her friends slaughtered, and being chased by Jackals, she flees to the only place she knows of - an old shrine from a small, local following her mother had taken her to. There, she finds help - in a form she'd never have thought. (Idea Bunny)

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.

Scattered, in a world where their emperor never existed... The Ultramarines have but one purpose... Protect humanity and act among them. Rated T for violence, death, and profanity. Please ignore the latest review. I have blocked that user for insulting words and feelings i do not support.

The Human-Covenant war had left an undeniable scar on the galaxy. Now in the year 2553, a new enemy shall appear, and a new war shall begin, one with origins in a time before the Halo Array.

AU! Heavily inspired by the story: Project Blue Book by AmeliusTheAlteran. Elements of Halo will be here as well because I love the design of the ships, weapons, and equipment they use. This is a story of what a united earth could accomplish when given a common goal. I plan for this to be at least 200-250K words. No pairings! Slow Updates!