After Commander Shepard refuses her help on the Citadel, Tali is left having to find another way to complete her Pilgrimage. But there are other things in the galaxy just as terrifying as the Reapers. Mass Effect/Alien crossover, but with much more of a focus on the former. Takes place during ME1. Feedback is much appreciated!

Ripley Outpost, a small mining operation out in the Attican Traverse will be the site of an infestation of an alien species the Citadel has never expected. Starts off heavily Mass Effect before going down Aliens. Cast of OC's with some canon characters coming in later.

Of all the threats the Systems Alliance had faced, a Xenomorph Infestation was by far the worst. The infestation can range from a small colony to an entire planet. The year 2182 saw the largest number of Xenomorph infestations across Alliance Space and the Systems Alliance attempts in exterminating this threat before they were forced to take desperate measures.

When the SSV Fidanza went dark, the SSV Ethelred was sent to investigate. They found the ship had crashed into the colony of Horizon and it was caused by bugs. Now the colony has an infestation in their hands. Who do you call to deal with these damn bugs? Well. None other than the Baddest Motherfuckers in the galaxy. The Colonial Marines.

The Citadel Council doesn't want another conflict. Their reputation rests on their ability to maintain the peace. The Alliance of United Systems doesn't want another conflict. They won the last one, no need to risk spoiling their record. Shepard doesn't want another conflict. The last one was ugly enough. Unfortunately, it seems that some people didn't get the memo.

17 weeks ago, USS Sulaco was reported destroyed. Yet it's on the other side of that door, orbiting around LV-426. All attempts in communication was met with silence. Seeing no other choice, the USS Sephora sends in her Marines to investigate. But nothing prepared them for the horrors that lurks inside the Sulaco.

A collection of in-universe reports regarding technical details for the story: Someone has heard them scream and sequels.

The first chapter in Tales and Beyond, a series of short stories set in the continuity of the Galactic Threat crossover saga. When a murderous Bad Blood ravages Illium's capital city of Nos Astra, Asari Justicar Samara must team up with an Enforcer Yautja to stop the disgraceful warrior before he kills any more innocent Asari souls and steals their skulls.

Commander John Shepard wakes up... from death? What will follow denies reality itself, as madness ensues. Skilled strangers, a mystery planet, and worst of all, no answers. Loyalties will be tested, as someone did bring him here... The question is who? Once again, Commander Shepard faces impossible odds... (Rated T for now, likely to change)

It has been sixth months since the Skyllian Blitz and the galaxy has started to move on. But although their rhetoric has lost its edge, the United Systems are not prepared to let this insult pass. Twenty years ago, they taught the galaxy a lesson. Now it seems that some people need a refresher course.

After acquiring Thane and Samara for his crew Shepard goes after a vicious Predator that is leaving a trail of bodies all around Illium.

A joint Initiative/Angaran colony has gone dark including the APEX team sent to investigate. Now, Sara must lead a new APEX team to the colony and investigate why both the colony and the APEX team aren't responding. There they will discover why the creators of the vaults disappeared and why nightmares always happen in the dark.

A turian scout force sets out to patrol empty starsystems. A human exploration fleet makes ready to approach a dormant mass relay. Soon their paths will cross and if they fail to make peaceful contact, the consequences will be deadly. Rated T for violence

After receiving a distress call from a Weyland-Yutani research station, the crew of the Normandy find themselves within a waking nightmare as they desperately try to complete their mission and make it back alive.

It has been forty six years years since since Servastopol and no one has been able to uncover its mysteries, that was until a team of mercenaries, under the leadership of Zaeed Massani and the direction of the Broker, discover a Derelict in the Nubian Expanse. The Alliance and USCM race against the illusive organization, Cerberus, for control of something neither side understand.

Rookie, Tequila and Katya got trasporet to Eden Prime during Mass Effect 1.

2 years after the Reaper War, Cerberus still retains control over Omega and Aria T'loak wants it back. To reclaim her station she recruits Commander Jane Shepard, together they will take back Omega and destroy Cerberus once and for all. But they will soon learn that Cerberus isn't the worst enemy in Omega. The sequel to Predators: Variety of Prey and Aliens: Bane of the Reapers!

The Hunt is on again. But this time, the hunters will not just be hunting the most dangerous people on earth. They'll be hunting the most dangerous people in the entire universe. Including Thane Krios and Urdnot Wrex.

The War with the Reapers has ended and in the few years that has passed since Shepard activated the Crucible ,the team that helped her, has split up to help their peoples in the effort. Ashley Williams, now a Spectre, is called on a mission, given a team, and sent to the Mars to fight a remnant of Cerberus. But Cerberus's greed has released a force even the Reapers once feared.

Summary: What if one of Commander Shepard's potential recruits was from long thought extinct legendary species known for being the greatest hunters in the galaxy? Disclaimer: I don't own Predators, Mass Effect or any of their characters, ok?

The Relay 314 Incident shocked most of the galaxy. A new interstellar civilization discovered, a colony destroyed, and a new threat revealed. When General Desolas Arterius is tasked with escorting a group of hastily assembled diplomats, he had no idea what would happen on that hellish planet. Meanwhile, Aria faces monsters that don't fear the Queen of Omega.

Humanity's First Specter, 1LT Jane Shepard, has received a disturbing message from somewhere out in the Attican Traverse; a terra-fracking mining ship has found a strange device on a planet… and the ship has now gone silent from a strange biocontaminate. Can Agent Shepard and her team of humans and aliens discover the fate of the Ishimura without joining it? (F!ShepxVasir)

After Admiral Hackett enlists Commander Shepard to investigate a Council science vessel, the Calypso, that has gone dark, the crew of the Normandy find themselves exposed to something begins to slowly send them insane. Then, they discover that they may not be alone on that ship after all...Set after the MEHEM mod for Mass Effect 3. XO with Alien Isolation. Please R&R.

After a Colony in the Terminus System goes dark a team a spetres go in to find out what happened but find something much dangerous. 'something waits in the dark for you are you strong enough to face your fears because this is far worse.

A council ship on a routine survey mission comes across a derelict vessel of unknown origin. Upon boarding, they find a single body, curiously asari-like, with its chest burst open as if from the inside. When the ship's owners arrive, first contact has to be made under the worst possible circumstances. (Rated T for violence and some horror)