A chance encounter with Forerunner Technology leads the UNSC to discover a two-way portal which leads into a Universe so similar, yet ever so different from their own. First contact with said Universe's humanity, however, goes awfully wrong, sparking the greatest war since the Human-Covenant War. These are the tales of those who fought in it.

The story about Lux, the Elementalist, stepped her way of the pursuit of knowledge, the explore the unknown, and her destiny among the stars.

After the battle on Mantle's Approach, the Chief finds himself, alongside a non-rampant Cortana, helping the Humans of a galaxy similar, yet different to his own, battle their enemies, while exploring the countless worlds tied together by a network of ancient portals and uncovering the mysteries surrounding these worlds.

Six months after the third wave the UNSC has a solid presence in the kingdom of Melromarc. Only that doesn't mean it is easier with several enemy factions. Question is can Sargent Naofumi Iwatani and the UNSC survive the wave of trouble heading for them

The beginning marks the end, how truer have those words ever been until now. We stopped Truth and are firing Halo to exterminate the Flood, while also hightailing it as fast as we can back to the Portal to return home with all hands accounted... Well some. As Chief said "We'll head to the Portal and we'll all go home" Sadly nothing ever goes as planned.

The war between humanity and the Covenant has entered its highest point. Desperate for help to ensure humanity's survival, a group of expedition vessels make a course into the most bizarre place in the galaxy-a place where time and space seemingly all but destroyed. In search of salvation, they find their answer, but that answer is beyond any of their mortal minds to comprehend.

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.

It has been four years since the Human-Covenant War. The Master Chief is caught in a battle between Republic warships and the Malevolence. Soon the Didact’s release approaches, and The Chief soon 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 both worlds…

The Tourney of Harrenhall was the greatest of its kind in Westeros. It was a grand show of the power of house Whent that drew the attention of all seven kingdoms. However, the Westerlands have arrived with strange new allies. Great warriors who bear the sigil of an eagle with arrows and lightning in its claws. Who are these new allies, and what do they mean for Westeros?

A Spartan and his A.I. companion will stumble across the Colonies of Kobol just a few days before the Cylon attack. That is where our story will truly begin.

What do you do when so much is thrown at you? What do you do when YOU wake up as an A.I.?

Mankind's Greatest Hero has finished his mission once more. Saving Earth from the Didact and his weapon of mass-recruitment, the Composer, the Master Chief and his AI companion, Cortana, find themselves mysteriously transported to a strange variation of Earth, where machines rule the surface and mankind hides below. The SPARTAN and those that join will fight to Reclaim the world...

Two years adrift in the middle of nowhere. Two years of doing nothing. When a sudden wormhole appers and sucks the DAWN into it, it spits them out over a crazy new world. A world with it own problems that may need a SPARTANS helping hand. This is my first story. Expect mistakes, and this is only part one of a three way crossover. Constructive criticism is welcome.

Two galaxies thrown together by a cosmic fluke. On one side of the galaxy, the war-weary UNSC vows to rebuild and become a giant in the stars so that they will never be so helpless again. Whilst another humanity is still finding its feet in the Citadel, with treachery and politics hindering its progress. How does the merging of two galaxies impact the course of all of their fates?

Reach has Fallen and the newly promoted Captain Jacob Keyes has taken his small fleet and st course for Earth. However, this is not the Earth those in the UNSC remember. This is my version of a similar story by originally by Samsara Sage which was adopted by Ultimate Deathsaurer 2

Humanity and its allies have stood strong after the Great War with the Covenant. Follow the Systems Alliance as it goes through a first contact nearly as disastrous as the one that lead to the Great War.

After a life threatening battle against the Covenant, Noble Six makes his last stand until a strange event occurred. Bringing the two worlds more closer than what is initially thought when a boy from the other side starts feeling the side effects of such an event. AU of a what if to the two IP's, first published story on this website so any feedback is heavily welcomed.

A little short story about the little ones of a certain Hyper Lethal Vector

Dying on Mantle's Approach, Cortana wakes up in an unfamiliar environment. In her drive to get home, she 'employs' the assistance of the local synthetics. She never wanted to be a galactic overlord. But a UNSC AI in an environment woefully unprepared for one of her caliber makes an easy one.

Awakening on a strange ringworld occupied by The Banished hellbent on destroying humanity, Ruby Rose joins the Master Chief and his new AI companion in hopes to not only defeat this new threat but also finding a way back to Remnant. This isn't Remnant anymore, she has to play by Halo's rules. (Slight AU Infinite)

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

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.

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)

Gaara del desierto, actualmente mejor conocido como el Jefe Maestro, está en una misión casi suicida para salvar a los tripulantes del barco-nave destructor menor conocida como Pilar de otoño. Él llego del mundo shinobi a estar en un conflicto entre dos superpotencias en una dimensión diferente a la suya. UA/pseudoshinobi.

Finding himself back in time to the early twenty-first century, Six thought that attending Highschool would be a breeze compared to fighting the Covenant and Insurrectionists. But between Vampires, Werewolves, doublegangers, and countless other supernatural creatures and who knows what else, he finds that his troubles are just starting.