After the Battle of the Ark, a UNSC Pelican dropship crash lands on Thessia. Two ODSTs survive the crash and make contact with primitive Asari. Ninety thousand years later, Liara T'Soni discovers a strange looking aircraft and Human remains in an ancient cave burial chamber. The discovery she makes will take the Asari on a journey to discover their true lineage.

The Citadel Council and the Systems Alliance fight for survival against the Reaper onslaught. However, the UNSC, politically divided and still recovering from the Didact's assault discovers a Mass Relay that will force them into the fight and change the course of galactic history forever. The Reclamation has already begun, and we are hopeless to stop it. ME3/post Halo 4

This a continuation sorta of Oblivion2991's Overlord effect. This starts a few months before the event of ME3. Before your read this i would suggest you read Oblivion2991's story first to get a basic understanding of whats going on, if you have, Welcome! I hope you enjoy this.

After discovering an ancient artifact, the UNSC's most advanced warship and a Sangheili Assault Carrier are transported to a universe unlike anything they have ever seen, and forced into a war against a foe they never could have imagined.

When the Long Night of Solace is evaporated over Reach via the weaponized usage of a Slipspace Drive, it ferries with it in its swallowed sections the Covenant Empire and, more horrifyingly, the desperate measures that the UNSC used to fight them. When they are found in a universe on the precipice of their own history, the meaning of the term "Mass Effect" will change forever.

For as long as she could remember, Summer had been fighting. Not remembering her past before her service to humanity and the galaxy at large. With the threat of the Reapers about to be dealt with once in for all, images of a time before appear. A/N: Commander Shepard is Summer Rose.

The USS Voyager comes face to face with the massive ship that is the UNSC Infinity after Voyager's nearly fatal first test of their slipstream warp drive. Getting home isn't their only issue. They will have to work together in order to unravel the ancient threat that plagues the new galaxy that they find themselves in. Star Trek:Voyager, Mass Effect, and Halo triple crossover

A Reaper threat and three different Sheppards. how will the universe handle this. follow Geoff, John, and Jane Shepard as they fight the reapers for survival and fight a new threat soon to take hold. taking place just after the events of the first game. (this was a challenge given to me by my friend the unforgiven one 19901. if you have not checked out his work please do)

Teleportation wasn't just a thought, nor a dream for the scientists of Darpa, it became a reality, but with countless tests and tuning it was finally completed. Sam Gideon, the only person able to wield the AR Suit was tasked in it's final test, long range teleport. But for Sam the man that brought down Russia's super weapon, found himself away, far away from home. "Well Shit"

Benjamin Carmine, Rookie of Delta, is the victim of unfortunate circumstances. He finds himself flung across realty, thrust into a situation straight out of his favorite Sci-fi Comics. Join Ben as he fights the good fight, striving toward understanding and helping his new allies in their struggle.

A joint Asari-Turian operation salvaged a "package" from a derelict wreckage in the Terminus Systems, whereupon they release a force of war beyond their reckoning. Hoping to avoid another war, Commander Shepard recruits the "package" into her team. A simple act of kindness, unwittingly paving the way for a clash unlike the galaxy has ever seen. Fate directs the flames of war.

Commander Shepard and his crew find the other half of the ship that MC is on. When they find him they have no idea what they should expect but an chemically suped up human was not one of them. I don't own Halo or Mass Effect 343industries and BioWare do.

We thought ourselves powerful, able to conquer a galaxy with nothing but toys. When we overcame every challenge, breached the space between the galaxies themselves, what use were the words of a race ashamed of their own past? Yet we cannot deny that we were warned, for while a challenge to a human is laughable, a challenge to humanity is a death sentence.

Our favourite guardian is investigating an anomaly on the moon that grabs him and deposits him onto Eden prime

Burdened with defeating the Reapers, commander Shepard is forced to work together with the terrorist organization Cerberus to fight the mysterious Collectors. Now he has to assemble a team to go through the Omega-4 relay. However, he did not expect to find a trio of Jedi, a brotherhood of clones and a murderous cyborg general. They might be just what he needs to beat the Reapers...

The Mass Effect brings miracles. It brings change. It brings disaster. The cycle must not be broken. I will make it so

A/U: After years of fearing the unknown, the Council decides to get back up on the horse to explore the galaxy, sending two frigates through an unopened relay. What they find is a world of wonders and danger; a world of monsters. Rated T for now. Will incorporate elements from all MH games, and ME. Yes, Andromeda too.

100 years after the end of the Human-Covenant War, when an ill-fated UNSC expedition opens Relay 314, it reveals a civilization unprepared for their arrival, and relics from a terrible past.

A youthful lieutenant Shepard unknowingly facilitates the release of an ancient evil and sets in motion a chain of events that will greatly influence the outcome of the first contact with Citadel species - and potentially threaten the standing of humanity among them. (Contributions: BrokenLifeCycle, kishinokurobi, kyro2009)

Down but not out after the fall of Reach, Noble Six is unwittingly sent to another reality. With Halsey as a nefarious ally, and ONI as a potential enemy, his loyalties are now split and he'll need help. He'll need to uncover a sinister plot transcending both worlds, battle foes near and far, and learn to work with unexpected and alien allies. Time to pick up a new team.

Todas las civilizaciones que descubrieron el elemento cero pensaron que era la respuesta a todos sus problemas ¿ quieres ir mas rapido que la luz ? entonces usalo y reduce la masa de la nave ¿ quieres mejores armas ? solo debes usarlo y listo el proyectil sera mas rapido y mortal ¿ quieres que los soldados sean mas peligrosos ? entonces exponlos y mira el poder de los Bioticos

Max Caulfield, the girl who can manipulate the flow of time, accidentally uses her superpower and ends up far in the future. Unable to go back, she is forced to live in a world, where alien races and FTL are reality. The story begins roughly 10 years before ME1.

More than 2 decades after the end of the Frontier War, Melissa Cooper, daughter of famous Pilot Jack Cooper, and exceptional rifleman David Anderson are sent to Shanxi to activate an alien artifact. How will it affect the Frontier - and how will the Frontier affect the galaxy at large? Book one of "Alliance Rising"

He became Death itself, but he was betrayed, thrown into the Veil in hopes he would die, except you can't kill Death. He came back, after millennia away from his loved ones, only to find them gone, ripped from him during his absence. OP!Harry/Harem, OC/Jack, M!Shep/Tali

Carrie White-the first human biotic who unleashed telekinetic terror at her prom when pushed too far, the only known natural human biotic. When the committee for transhuman study draws a blank for development of a safer biotic implant authorization is given to exhume her body for research purposes. But is she as dead as everybody thinks?