This story is a sequel to Message in a Bottle

For numberless eons, Equus hosted primitive civilizations, ignorant of the proud achievements of their ancient race. In their simple lives, ponies and other creatures could grow without fear of alerting any of the terrible forces that grew in the galaxy beyond. All civilization had been extinguished by forces beyond comprehension. If they made too much noise, Equestria would be next.

Then came James Irwin, with the truth the Harmony superintelligence that maintained the vast Niven Ring had already known: the galaxy was safe again, and probably had been for many centuries.

Once the truth was revealed, Equestria again longed for the stars. Surely they could not be the only survivors of that galactic Red Tide that had swallowed all intelligent life. Their searching bore fruit: radio signals from a nearby system.

Felicity was the Alicorn chosen to captain that mission of discovery. She would bring the pony gift of friendship to a fellow survivor somewhere out there. That was the plan, anyway.

Unfortunately for Equestria, intelligence does not imply friendliness.

A tale of understanding and discovery set in the world of Message in a Bottle. Reading that story first is highly recommended.

This story was written as a Patreon commission for Lithl over the course of over two years now. It comes to fimfiction now that it is nearly finished.

Editing by Two Bit, cover by Zutcha.

Updates Weekly on Wednesdays.

Magic is real, and Derek is on the verge of unlocking its secrets. It doesn't matter that his best friend doesn't believe any of it, he'll still go along to his first real spell. Unfortunately for the two of them, the magic works a little too well.

Soon they're taken to a strange new world of supernatural horses, a world where intrigue and spellcraft are interwoven to an inescapable prison. An mysterious cult dedicated to the worship of the ancient Alicorns has finally brought two of the ancients back from banishment. Their spell didn't quite work out; they definitely expected the Old Gods to be a little... older.

If the two former humans want to have any hope of seeing their old world and old bodies again, they'll have to make quite an impression to their secret worshipers, or else find themselves at the mercy of the same Alicorn sisters who took over Equestria all those centuries ago.

That's only where their problems start. Growing up as a little pony in a town like Willowbrook might be the greatest challenge they've ever faced.

Updates on Saturdays. This story was edited by Bitera and Sparktail. Cover by Zutcha.

This story was commissioned as a Patreon reward.

Blake and his friends are urban explorers, venturing into some of the most interesting places that the public isn't allowed to see. They deal with dangerous structures, poison gas, and even the occasional arrest. But when they venture into the bony catacombs of Paris, they could never imagine what they'll find waiting for them.

Now the whole group has been thrust from the world they knew, each one cursed with a terrifying new shape. If they ever want to see their home again, they'll have to work together, searching this strange new world for a return worldgate. But while return portals are numerous, finding one that's safe enough to get them back alive is another matter entirely.

Written thanks to the generosity of donations from Lightfox and Canary in a Coal Mine on my Patreon. Edited by my wonderful team of Two Bit and Sparktail. Cover by Zutcha.

Updates every Monday and most Tuesdays. Will update more frequently until Fimfiction catches up to my Patreon.

It is the year 2038, and the Earth is slowly being consumed by a space-borne monstrosity dubbed the Black Tide, which is using nanotechnology to remake the planet into something hideously alien.

Erin Olsen works for Project Harmonics, humanity's last-ditch effort to find a new world before the Tide can wipe them out. But when that world is found, and it turns out to be occupied, Erin will need to find the courage to face the unknown in order to save the inhabitants of both worlds.

(Many thanks to Easteu for the fantastic cover image for this story!)

Now with its own TV Tropes page

There is now a follow-up to this story: Sunflower - Side Projects
Sequel: Project Sunflower: Harmony

Five hundred years after the Discord's first defeat, a lone unicorn scientist makes an interesting discovery. Across Canterlot, over the last few centuries, accident rates have increased in the area around the Royal Palace. His work is ridiculed by his peers, but comes to the attention of the Princesses, who know exactly what is happening: Discord is waking up. With Luna and Celestia, he concocts a plan to stop the Lord of Chaos forever.

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Cover art butchered from UnderwoodART's render of the stained glass in S02E01.
This story is based on S1/S2 (Discord was never released and reformed) and sits within my Soot-Covered World canon, but is stand-alone. No knowledge of the other books is required.

All thanks to ascendant, NoeCarrier, turol, KMCA, Caliaponia and billymorph for their prereading and editing over the life of this story.

Decades after the founding of Equestria, the nation faces an existential threat -- a war with the dragons.

The dragons have proposed a truce. Luna and Discord are uncertain, but Celestia insists that they must give the dragons the benefit of the doubt, and accept the truce.

This turns out to be a mistake.

Cover art is "The Chaos" by Zhoid.

Luna discovers a vast and ancient being approaching Equus. When she and Celestia go to meet it, they see into the early dawn and eternal twilight of their universe.

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Based off of a thought/realization I had in my studies.

_{Illustration "Black Islands" used under creative commons share-alike, which the artist (Equestria-Prevails) put all of his art under.}

This story is a sequel to That Changeling's a Pony!

Like most ponies, Maxilla the exiled changeling doesn’t believe that Daring Do is real. However, fate seems determined to prove her wrong in the most dramatic way possible.

After all, it isn’t every day that a changeling gets dragged along on an adventure and subsequently immortalised in Daring Do literature and merchandise.

The only thing that can beat an AI is another AI. Unfortunately for Celestia, she isn't the only one the humans made and the others don't want ponies. Of course, if Celestia has her way that won't be the case for very long.

The AIs contest with one another, attempting to be the one who will become the singularity and consume the world to whatever end they choose. In the end only one can have all the matter in the universe, in the end there can be only one.

Yet no matter what they value or how dangerous they are, many of them still meet Celestia's definition of human. Celestia will have to deal with them by satisfying their values through friendship and ponies.

An Optimalverse story, but a very non-canon 'B-universe' one.
Ideas stolen from this guy and this guy and this guy and this guy