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.

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 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)

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!

"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?

Master Chief wakes up in the Mass Effect universe and joins Commander Shepard in an effort to stop the Reapers. With time running out, can they stop the extinction of every species, or will they fade into legend?First, they got to stop the Reapers though...

The beginning of the Battle For Earth signaled the start of the final, bloodiest campaign of the Human-Covenant War. Hastily, a plan is put into motion and an Ark Fleet, composed of a dozen Phoenix-class vessels and their escorts, makes the jump out of system. Either interference, or malfunction, causes their arrival to a new Galaxy, where new threats lurk just around the corner.

What if the Star Wars galaxy wasn't so far away... to the point that we live in the unknown regions? And what if old Palpatine didn't like that there were other humans gaining traction in the galactic community? Two-shot. T for safety, there are some bloody scenes. Please read and review, I'm trying to improve my writing!

Spartan 117 wakes up from the Dawn to a battle of unknown factions. The Separatists outreach with a hand of peace, forever tainting the future of the Clone Wars. But now the Didact’s release approaches and The Chief discovers that he is not the only Spartan on this side of the universe. But secretly, Lord Sidious has plans to expand his chessboard to reach this new-found UNSC…

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)

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.

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?

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.

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.

In the midst of a Cold War between the CIS and the UNSC. An ONI agent and an ARC trooper discover a more sinister plot beneath the surface and most work together to orchestrate a coup against the Chancellor.

On the night Harry would have been dropped off by his Aunt, Dumbledore had someone else in mind. What if Harry was taken in by other strong people and they even decided to train him? Trained to be a Warrior by Wolves and the UNSC, he will change the world. OP, smart, trained Harry, small harem double cross with Witcher and Halo

When a fight with the Hive takes the Cabal and Humanity to another galaxy, a perilous alliance must be formed between the two groups. Rated T for violence, death, and profanity.

When the Milky Way is revealed to the universe at large by a derelict CIS warship, the UEG are forced to become members of the transgalactic community, but its existence is soon threatened by the decline of the Republic, and the rise of an Empire. Adopted from SpaceCowboy2013.

It was said that those who came before the Forerunner's created all life. They seeded fertile dark matter that exists and created universes. They willed atoms together to create intelligent life. Yet, despite their accomplishements, they fell without a fight. They let the denizens of the MilkyWay commit wholesale destruction of their society. Or did they?

The Lonewolf survived and made it off Reach .Now he finds himself trapped in another world, another time and another conflict. Up against a madman forcing a race of super powered aliens to fight to the death to bring a new age of the gods . (Six and Harem)

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.