In the midst of Equestria's most recent age of peace, just after Princess Celestia puts the finishing touches on her latest gift to her subjects, Twilight Sparkle appears with a strange question about an obscure beast. It's obvious that something else is bothering Celestia's most faithful student, but what?

Bioshock meets MLP in this psychological thriller, where Celestia's new faithful student, Siren Song, must discover the truth behind the city beneath the waves.

Beautiful, gifted, and faithful student of the Princess of the Sun, Siren Song has very nearly everything a pony could want. Sometimes though, in the twilight hours, Siren can see the sadness in her mentor's eyes. Once, ponies whisper, the Princess had another student named Twilight Sparkle, but she left Equestria, never to return. The pony who has a perfect life just needs one more thing—to convince Twilight Sparkle to come home so the Princess will smile again. But when Siren arrives in pursuit of Twilight, she soon finds herself trapped in a city of horrors, with only its monstrous denizens for help.

Now with a TV Tropes page!

It's been a long, long time since Spike was stolen from her, but Twilight hasn't forgotten nor forgiven. After a long and arduous journey, she has finally found him and his kidnapper.

She will save him.

No matter the cost.

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Featured on EQD.
Now with Dramatic Reading by Joehighlord!
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Side story: A Dragon Whispers Her Name

Set in the future, after an unspecified amount of time has passed. Accurate to the canon set before 31/01/2013.
Inspired and loosely based on the short film 'Sintel'.
Elements of the story taken from the 'Where the World Ends' universe (by hlissner).

Image is fanart by NCMares.
Pre-read by ThoseRemainingSilent and Bleeding Rain.
Story formerly known as 'Twintel'.

Blank Slate is the greatest thief of his generation. He has robbed countless nigh-impossible marks, and his talents as a master of disguise are beyond par - truly, nopony knows who he is.

And now he's preparing the greatest heist in mortal memory: the treasure vaults of the Princesses themselves.

But you have to get up pretty early in the morning to get one past the pony who defines when ‘early in the morning’ is…

Spoilers in the comments! Beware! Beware...

Audio Reading available - thank you ABagOVicodin
Czech Translation available - Thank you Keranis

SF (canon species only; no humans) Ponies were magically and genetically engineered to be the perfect servitor race. They are powerful, adaptable, intelligent and completely under the control of their creators. A laboratory accident frees one such pony from her mental chains, but how can one mare save herself and the rest of her kind if she doesn't even know she's a slave?
This is not the Equestria you know and these are not your little ponies... not yet, anyway.

Tags: Adventure, Diamond Dogs, Gryphons, NO HUMANS (did I mention that already?)
Other tags: historical, mind control, Clarke's 3rd Law, excessive use of high energy physics, before they were famous.
Detailed review by PaulAsaran.
Cover art by endrome , used with permission.
Russian translation (partial -- 'unofficially' completed in the comments)
A Soot-Covered World, book 1.

An alarm sounds. There's a planet nearby. I wonder if anyone can hear me.

Pinkie Pie has an existential crisis while painting her room. This self-parody is dedicated to Professor Piggy, who once told me that I could write a story about Pinkie watching paint dry and weave it into an incredible psychological journey. Let's see if he was right.

Featured on Equestria Daily.

Dramatic reading by MicTheMicrophoneZero.

Cover art by chaosdrop.

Every month, Octavia plays privately for Princess Luna as she paints the night sky. Each time, Octavia feels that familiar feeling, one she's rarely ever felt before. Now she has decided that it is time to announce these feelings. However, she has a secret, one she has kept for longer than she can remember. But surely the Princess of the Night would be able to understand her own creation, right?

Artwork by Johanpok
Dramatic Reading of All the Stars in the Sky

Equestria is a land of magic and harmony, a peaceful realm ruled by immortal and benevolent monarchs. At what cost is this possible?

Following the discovery of a strange and powerful device, Twilight Sparkle is whisked away to the edges of a land she thought she knew so well. Here, surrounded by ponies whose very existences have been kept secret, she must contend with vicious enemies, hostile allies, and the truth.

Chapters 1-16 edited by KiltedKey

"They take da' pain out, make it somethin' good, somethin' good. Wear yer' blues well, colt, you gonna earn every drop of em'. Yer' gonna be tangled up in blues," the old stallion told Blues, presenting him with the saxophone.

Blues himself tells us of his life after that day and as he explores what it means to be "painted blue"; to hope, to fear, to love, to lose. He tells us as he learns what really makes a stallion a stallion, what it's like to leave something you love behind, and what risks one must face in life or risk becoming nothing at all.

All of this, Blues tells us, takes place against the background of critical moments in his life and as he travels the scope of Equestria from Manehattan to Ponyville and Appleoosa. All the while the songs he learns from his pain mingle with the one his mentor, Moody Blues, revealed within him...something unbelievable the old pony did to bring it forth.