An ancient danger threatens the galaxy, unknown to all. A humanity which never discovered Prothean ruins, expanding through space on their own, emerges. Joined with the machines they created, hardened by war with a terrifying enemy, they read the writing on the wall. But will the galactic community already there listen to these newcomers, stirring up trouble everywhere they go?

Humanity becomes an AI race with two factions and a war that lasts for 4 Billion Years

The Shadow Broker: An entity that has seemingly lived forever, indomitable and insatiable in its thirst for information, instilling hope and fear into its patron's lives … and haunting those who pray their secrets are never found. The institution was nearly destroyed by the Reaper War—many thought it was. This is the story of its rebirth and resurrection (co-author: Desert Sunrise)

Deployed to patrol the Turian Fringe Systems the HNV Invictus is badly damaged and is forced to blind-jump with a damaged FTL drive, it's crew survived the ordeal, landing on 'humanity's doorstep the crew is rescued and the Invictus is scuttled, Humanity learning of the Hierarchy moves to put its best foot forward by bringing their wayward sons and daughters home. Alternate FC Fic.

In the Year 2015, Earth was attacked by an unknown Alien Empire. With X-com they fought the alien menace again and again, overcoming the Odds and Forging a new Empire comprised of the former enemies enslaved to the Elder's will. Now forged into an empire the likes of which the galaxy hasn't seen, they take their first steps into the great Unknown. Major Crossovers and OCs.

We see what Aethyta was up to before her appearance in ME2, and how she was 'recruited' into spying on her daughter, something that's not been done in a lot of fics (that I know of). Much OCness abounds and worldbuilding!

The Krogan say the only stories worth telling are those of love, sex, and war. Dark/Surreal. OC AU pre-ME1-3 with an Omega-raised survivor/paragede Jane Shepard Garrus Vakarian Thane Krios. Study of Garrus's metamorphosis into Archangel, Liara to SB, exploration of Thane and drell beliefs. REWRITE of original. Updated regularly at A03. DM me for copy of OG fic if you miss it.

There are many ways to cope with death - some good, some bad, and some positively horrendous. This is an example of the last one. In other words: the birth of Archangel.

Tali is pregnant, she is afraid that John is dead. During this time a squad of the alliance is doing research to find survivors on the citadel, some years a new generation arrives, and a new threat approaches and maintains to the turn of the new crew and the new hero to eliminate the threat. SEARCHING FOR HELP

The Universe is now safe from the Reaper's Harvest, but can peace be protected after rumors of rebellion flow through the Galaxy and somewhere in space a powerful new enemy awaits. A/N I don't own Mass Effect.

The war is over. The Reapers were defeated. Now, centuries after, both Shepard and Liara has the perfect life. (Basically Shepard can live 1000 years and lives with Liara for centuries now.)

Before Shepard goes back to Earth to face charges against her by the Alliance, she and Garrus decide to make the most out of their last day together. Garrus/FShepard! Rated M for sexual content, mostly.

In the aftermath of Thessia, Councilor Tevos receives an unexpected visit. A short, sweet one-shot in which Shepard and Tevos are closer than anyone realized. Now being continued as a series of vignettes and drabbles chronicling the unlikely relationship between the Asari Councilor, and the first human SpecTRe.

The Citadel Council and the Turian Hierarchy has been at war for a good half of a century. Eager to break the stalemate, The Hierarchy seeks out a new ally in a rising Systems Alliance, bringing the war back to full speed. The Alliance now goes through it's trial by fire, as it emerges from obscurity into the galactic stage. (AU no Krogan Rebellions/First Contact Wars)

He was just a kid from earth. Who would've thought that 11 years later he gets sent on the most important mission in human (and galactic) history. Will Commander Shepard and the crew of the Normandy be able to defeat Saren in the race against time? Takes place before and during Mass Effect 1. (Earthborn/Sole Survivor/Soldier/Default MShep).

Against all odds, Shepard wakes up. [Post ME3 control ending Garrus/F!Shep, finished, updates weekly.]

"Anything that can go wrong, will go wrong", the old saying goes. Survivors of a freak accident that took place in 2023, two brilliant scientists are recruited into Alliance Task Force "Cerebellum" to work on cutting-edge technology alongside other talented minds. Little did they know, their work would slowly end up reshaping the galaxy as an ancient enemy emerged from dark space.

I think we can all agree waking up as a guy in a woman's body would be jarring to say the least. Waking up as an asari? Horrifying. But waking up as what I had the incredible misfortune to be... Let's just say I wouldn't bet on me surviving long enough to see the Reapers make their grand debut. Asari SI, starts just before ME1.

A/U Saren saves young Shepard from colony attack

Battlespace reporter Diana Allers goes for an exclusive interview with the infamous Commander Jane Shepard. However, by learning a bit of the commander, she learns a bit about herself as well. Femslash content

As the fight against the Reapers races toward a conclusion, Adrienne Shepard receives evidence that her missing father is alive. As Shepard searches for answers, she begins to uncover secrets that are sinister, ancient, and beyond her comprehension. She soon learns that the Reapers could only be the beginning of their galaxy's extermination - Set during ME3 & beyond - Custom Shep

Newlywed Sara Ryder was called to help the Krogan with a delicate mission, leaving her brother, new family and crew behind. The Primus has returned, the new leader of the Kett and they are determined to carry out their exultation. Sara has been lost, leaving her devastated love and her twin brother behind; and Scott is the new Pathfinder. SaraXJaal ScottXCora

She always had feelings for him. Since they started their adventures together. She kept those feelings hidden in order to not distract him. Now that he's back, she wondered if she should tell him before she losses him again.

I didn't know how I ended up on the Citadel. What I did know, was that my chances of survival were higher if I could find refuge aboard the NORMANDY. So I took a gamble, and joined the hunt for Saren. Unfortunately, real life is not as easy as a game - but still, I wouldn't have missed it for anything. / Mass Effect 1, Self-Insertion, logic/realistic approach, close to canon.

A new cult is taking hold of those on the Citadel. Is it the Reapers or something much older?