This is a Mass Effect - Halo - XCOM Crossover. In the year 2084 during the Asteroid Belt Offensive XCOM Elite Unit Strike-1 discovers an Ethereal Station but must Psionic Teleport away but something goes wrong. In the Year 2552 the UNSC Fearless an Orion-Class Assault Carrier is forced to escape Reach under heavy fire, during the Slipsapce Transit something goes wrong.

Xen is the gateway between universes and dimensions. It is the place where time, space, physics, and other known rules that define ones life go out the metaphorical window. What will happen when a Child of Xen, a perfect Supersoldier, a Guardian of Humanity, and a Spectre of a Council of aliens find themselves caught up in a war of survival? Find out in "Xen Effect".

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.

When someone contacts the Quarians about old machinery, they should think twice before engaging with a strange yet so familiar species, a war, and circumstances that will shock two galaxies now that the rift is open.

With the rush of the firing of the rings errors occurred. More species come into play and humanity no longer started on Earth alone. The planet Elemental is here with humans who are different from Earth. Now Naruto needs to navigate this war torn galaxy. Alive preferably. Pairings maybe Harem. NarutoXHalo world merged with bits of others like Star Wars and Mass Effect. Maybe more.

The Reclamation has begun and the Eternity on the run. After fleeing the Orion Arm into the safety of slipspace, the UNSC Eternity ends up marooned on a primitive feudal world. Inspired by an earlier Halo x FoZ fanfic called "Zero to Infinity"

It was surprising, ending up here in this world, with a father and a mother that I wouldn't lose the Covenant, but I wasn't going to mess this up. Who I was doesn't matter anymore. What matters is who I am now. My name is Rudeus Greyrat, and I, am a spartan.

The reapers brings new galactic superpowers into the war after invading the Orion arm of the galaxy. will the conflict unite them against a common foe or will they open conflict with each other.

ODST Captain Nathanial Renkov unintentionally becomes the first Helljumper to survive being dropped through a Slipspace anomaly. The problem? He has no idea where is and is surrounded by aliens the UNSC has no record of. Even worse? No one knows what the UNSC is. Follow his story as he tries to make sense of his new surroundings while trying to survive a new galactic threat.

The Lek'golo, a race of worms that work together to shape an individual that had the ability to think as a group. But the lek'golo are not a race found on earth, but it would be quite the coincidence that a case 53 came into the Bay as a group of Lek'golo worms. Let's sit back and watch the chaos. (This is somewhat a self-insert story; you have been warned)

Oni Reaper survived the Fall of Reach and was hired by the Director to aid in Project Freelancer Get's close to the agents even some non-human member of the project, however, the truth why he is here and why he even important at all will bring about the end of the Age of Freelancers. (Cover done by a friend of mine)

It begins like many story's get started. But there is always a twist in this dark times. How will the people handle a "Boy who lived", who is trained by the Wolves and Spartans? Update for the Summary: i decided how the pairings will work, hope you like it

Spartans never die, B312 Noble Six knows this better then most. After her last stand on Reach she woke up lost on another world that has no knowledge of the Covenant or the UNSC. Stranded with few resources on the world of Remnant she'll have to form a new team, grieve her old one and try desperately not to lose her god damn mind over this crazy planet while trying to save it from

Boston, a key city in the American Revolution, once again finds itself threatened by a would-be tyrant that the Minutemen, recovering from their war with the Institute, might not be able to defeat. Undeterred, they stand ready to fight it and find help coming from the unlikeliest of places, both close to home and from afar. Very far...

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?

As the deserters of the UEG establish themselves in a new region of space, far from the apocalyptic war with the Covenant, new challenges emerge, especially from the strange world of Shinsei. With the UNSC elements desperate to maintain peace and their influence, a new special forces unit is established. This is their story and the stories of others. *AU. Side-Story of Halo-Naruto*

you might have heard of prophet or nomad or alcatraz. me, i was the forgotten six member. i no longer remember my own name. they called me six. that is what i am stickin too. i will make people remember me. my attemp at a halo tv show series and crysis crossover. don't know how good it will be.

In the midst of chaos, three kansens of the United Nations Space Command became the first casualties of a battle to protect humanity's right to exist, the Battle of Earth. Now, they found themselves staring at their home planet but of a far distant past, these kansens had to make a choice: should they just watch things unfold again or should they change the course of history?

AU. Spartans never die. But we all know that's not true. A terrifying new enemy approaches and only time will tell if the forces that be can stop them.

A UNSC Human-covenant war-era battle group led by a Punic class supercarrier is introduced to a new galaxy. One where people are xenophilic, use to times of peace and harmony, and against disrupting the Status Quo. What will an extremely aggressive xenophobic and battle-hardened human faction add to the mix? and will their addition change the future of this galaxy. (No Spartans)

Eight years before the USJ Incident, the Hero Public Safety Commission learns of the Meta Liberation Army. Doubting the current heroes ability to stop this threat, the Commission sees this as the perfect opportunity to usher in a new age of heroes. The first step is the kidnapping of one hundred kids. Among them is Izuku Midoriya. Moderate AU.

don't know how good this will be. this is inspired from the new halo tv show. some changes will be happening and i don't own any of the tv show characters or percy jackson books. this is in no way connected to main tv show cannon. this is also a mass effect crossover between the other two. please keep in mind that i'm not a good writer

En una misión de exploración en una galaxia desconocida, la nave "Santa Unificación" termino emboscada por una flota de la UNSC. Los tripulantes huyeron en uno de los planetas de dicha galaxia por los daños recibidos, ahora los pocos sobrevivientes deberán reparar las comunicaciones para llamar a un equipo de rescate, lo que ninguno de ellos saben, es que estarán en el apocalipsis.

Tras una lucha pérdida contra la UNSC y tener que realizar un aterrizaje forzoso en donde solo 8 miembros sobrevivieron, nuestros protagonistas tendrán que sobrevivir a este nuevo planeta hasta que sean contactados por Gran Caridad, sin saber que en aquel mundo les aguarda un viaje inesperado y sobrenatural.

The Abyssals. They pushed us back. They pushed us back to the limit. The Covenant. They commited genocide on us. And we will push back. Final Frontier. No matter what, we will push through. Humanity depends on us. Both humanities depend on us. Us. And we will advance without falter.