Two worlds collide, neither prepared for the other. The Solar Sphere Congress -successor to the long gone Earth Federation- unwittingly starts a galactic crisis when it makes first contact with a very angry, very trigger happy Turian Hierarchy.

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)

The war has ended and UNSC/UEG can finally start with rebuilding. Former Covenant races created new alliance to prevent another big war. Everybody thought that they can live peacefully, but few years later UNSC Gargantua has discovered mysterious object in the Orion's arm and no one is sure, if everything will be the same again.

The Federation, Against the Council. Actual intergalactic government, against a ' Intergalactic Council'. Militarized society, against Utopian Society. What does the Citadel do to this ' Threat', that defies all their expectations and their galactic view?

Lives are cheap and money is everything. That's how the orphanage made its money - lending out children for human expirementation. L is an old man at the age of fifteen and he knows he doesn't have much time left. All that mattered was getting out, but he soon learns that the world is a lot bigger than Night City. And that the galaxy is a lot bigger than Earth.

The Tau Empire was strained... And a new galaxy offers a new lease on life. Rated T for violence, death, and profanity.

Yes, the title is a Journey reference! My shameless love for them aside, what would happen if the Sole Survivor of Vault 111, Elwood Frank, call him Frank for short, ended up in the wonderous technologically advanced world of Mass Effect with a ancient AR-platform rifle and a whole lotta grit and determination! Rated M for concepts that I'll be toying with. Enjoy!

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.

Clayton Carmine has only known hate and carnage for so many years. But once he survives the war he hoped to die in, things get strange. When people need help he isn’t one to shy away, and while helping Baird he gets sent to a place in dire need of a man like him. A man that can’t be claimed by death as easily as his kin.

The Eternal Empire has carved a place in the galaxy through unity, duty, and faith. These tenants have allowed humanity to rule the stars, however it is uncertain times in the galaxy, with the Emperor's faithful being across the galaxy, it's only a matter of time before there is conflict.

This is an highly experimental story that have been constructed using GPT-4. The chapters may be short. Instructions are included for recreation. They are meant to test the capability of large language models. This particular story invokes an scenario where Element Zero is encountered without the technology starting pack intentionally left behind at the same location.

Having stopped the Hive incursion on Eden Prime at the expense of being stuck in Commander Shepard's reality, Crow is offered a place on the Normandy. With nowhere to go, he accepts, and finds himself at the front of the fight against the Collectors, while at the same time trying to learn how to trust the ship's residents. In the end, though... maybe he's not 'stuck' after all.

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?

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.

The people of Sera rebuild, spreading to the stars. Wars will be waged. Peace will be sought. The Coalition has risen from the ashes to take their right to exist in the galaxy. They will survive...no matter the cost.

Shepard died, choking in the darkness of space. But yet she awoke, finding herself within a strange Hunter's Dream. Meeting the mysterious Good Hunter and Plain Doll, there are many lessons to be learned from both her home galaxy and a strange world of luminous moons and terrible beasts. Yet through them both, one rule remains constant: Fear the Old Blood.

After the attack on the Collector base failed, the Normandy SR-2 found themselves on Ark a planet roaming with primordial beasts. But as their Commander returns, things become more complex as they learn about Ark and the reason they are there and the purpose of the world.

What would happen if the universes of both Halo, Mass Effect, and Avatar(James Cameroon) were combine into one universe. What would happen had Halo Humanity had an earlier first contact rather than their first contact being with the Covenant. How would things played out, find out in this fanfic called Mass Effect: Halo.

The Robotech wars are over. The survivors of Humanity and the Zentraedi are now alone in the universe, and so, come together, becoming something new, becoming Terrans. Now this race will find itself thrust into the galactic scene, as the Citadel Races and those beyond test these young upstarts, and in the shadows, old things begin to move.

The Universal Century, only a few short years ago humanity nearly eradicated itself to the tune of a madman, now it spreads, free of most of its old hatred. Yet the galaxy won't let them rest. Terminal prepares the twin Queens as best it can. (Gundam x Mass Effect)

In the 2700s, the Milky Way is flourishing. Access to Forerunner ruins has allowed the races of the galaxy to explore their home and new galaxies. Now, a new fleet, lead by an Ancient Punic Class Fleet Carrier, is moving to explore a new galaxy. Soon enough, the UNSC will find itself embroiled in a new Great War, with a few standing in the way of mass extinction. (slow updates)

The Turians expected a unprepared young species, what they didn't expect was for their foe to have friends in high places.

A battle against the forces of Chaos strands a Necron lord in the galaxy of Mass Effect. With what's left of his dynasty under his banner, Veronakh Lord of Solvatakh intends to lead his people to glorious conquest. Can Commander Shepard stop the Collectors and curtail the ambitions of the Necrons?

This is not a story about an OC/SI character being introduced into the Mass Effect Storyline but rather a guideline or codex that I and others can freely use to potentially create new stories combining these two great franchises. Feel free to borrow material from this fic to use in your own stories. Took me 2 Days to write this so suck on that.

Commander Shepard is dead. Knowing that they needed someone to complete his work fighting against the Reapers, The Illusive Man set his sights on the next best thing, Humanities greatest hero. The only problem is that Superman gave up on hero work a long time ago but can the threat of galactic extinction be enough for him to once again step into the light.