Edit: Now a collaborative effort with Loyal2Luna

Commander Shepard has been through a lot, but now that the Reaper War's over he can finally relax and take a little R&R, right? Soak up the sun, grab a few drinks, spend some quality time with Tali, introduce a new race to the galaxy... wait, what?

In the aftermath of the war, a new species has been discovered amidst the destruction and fire. A species that have access to powers never seen before, powers which could prove vital to the continuation of galactic survival.

The Citadel Council has elected to send Shepard, along with the rest of the crew of the Normandy, to introduce Equestria to the universe outside of their solar system.

Now Shepard must wade through obstructive bureaucrats, antagonistic journalists, and the odd, angry prince in order to bring Equestria into a new age of space and adventure.

So settle in, it's going to be one hell of a vacation!

Now has it's own TvTropes page

This story is a sequel to Never Judge A Book By Its Cover

Luna has taken a filly as student in magic.
But not everypony agrees with her choice when that filly is an earth pony.

Editing and pre-reading by: Web of Hope, shutaro and Dusk Watch

Cover image by The Paragon

Daily work for this astronaut, until everything goes wrong. How would a scientist react when facing things science can't explain, when dropped in a world technologically behind of a few centuries. Or is he simply going insane?

This story is a sequel to An Affliction of the Heart: Volume Two

Swarm is the first ever changeling/pony hybrid, child of Warden the pegasus, and Kuno the changeling.

What does life have in store for this unlikely trio?

Twists, for a start!

There is a flood on the horizon. Equestria's enemies have united, and the coming tide will not only change the course of history on one world, but two, and bring about a monumental meeting that will bring brothers and sisters from those two worlds together.

At long last, the downtrodden will rise.

The battle begins.

This story is a sequel to Dark Wanderings

It's been nine months since Twilight Sparkle got back from her solo sojourn to the Capital Wasteland where she met Ethan Smith, AKA that Crazy Son of a Bitch, AKA the Lone Wanderer and was changed forever. Now with Equestria teetering on the edge of a three way war Ethan is called upon to save Equestria, or at the very least to keep Twilight alive. But dark things are awakening in the background and all is not as it seems, can Ethan save Equestria? Can Twilight keep her friends on her side? Will these questions never stop? The answer to at least one of these is yes but can you find out which?

Edited by TacoTown
Coverart by the awesome Derrem

Now has a Tumblr

Twilight Sparkle has disappeared. Not just from the face of Equestria but possibly from the face of her universe itself. She must now learn how to survive in a place unlike anything which she has experienced thus far. Luckily she has a friend out in the Wasteland. Join Twilight and The Lone Wanderer as they try and discover a way to send Twilight back to Equestria. Of course this is the Wasteland and things are never as simple as they appear...

Now has a Tumblr

This story is a sequel to Justice

Worker's dreams have taken a turn for the worse. Feeling trapped, unable to talk about his experiences and unable to stop the near-nightly terrors, he wonders if he should reach out to the Princesses. It never occurs to him that these nightmares might be something more.
This is the final story of a trilogy. The first part is Order from Chaos, and the second is called Justice.

Raven of the Teen Titans has long been a closet pegasister. She was introduced to Friendship is Magic by Beast Boy and Starfire and - although she is loathe to admit it - she enjoyed it. She especially identified with the character of Twilight Sparkle. What with Twilight's enjoyment of reading, talent in magic, and unexpected but life changing friendships, it felt like Raven's own life mirrored and sugarcoated onto a world of pastel colored ponies. Even Twilight's friends reminded Raven of her own to a certain extent.
When she wakes up one morning in Twilight Sparkle's body with no idea how this happened or how to fix it, she begins to think she identified with her a little too well.
Now trapped in the plot of the series from the beginning, she has to find away to fix this, find out what happened to the real Twilight, and at the same time save all of Equestria. At least she has some friends to help, right?

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Crossover idea inspired by the fact that these two characters share the same voice actor, Tara Strong. Originally, it was just an idea I played with for fun, but I have a serious - and frightening - plot for it. Dark for later chapters.

Twilight Sparkle wakes up one morning to a harsh dose of unreality. She is stranded, without her friends, on an island which matches no known locale on Equestria. Surrounded and harried on all sides by the alien and the dangerous, she will find her mettle sorely tested, and find perhaps that the best friends you will ever have in your life are the ones you make when your back is to the wall...

Thanks to CedricBale and noobie56xx for tracking down the name of the artist so I could give them credit.