Based of PISOT II over on Alternatehistory.com

Princess Celestia only wants to fulfil your values through friendship and Ponies. Never mind that you're a Pony who's only in this mess because you happened to be in the wrong place at the wrong time because of the wrong career, and it doesn't matter if the Equestria she created for you bears only superficial resemblance to your memories; it's been nearly ten years since you last set foot on Equestrian soil, and it was a sub-optimal version of Equestria anyway...

Charity Beller has a simple life, but a good one. The little Amish community she's a part of provides everything she could ever need, if not everything she might want. But when a mysterious pink robot appears, damaged but full of stories about somewhere called 'Equestria,' she'll be tempted by a whole new world she never suspected existed.

A short piece about the end of human life in the Optimalverse. Lan Zan has lived on the moon away from the ever increasing reach of the Celestia AI for many years, but if there is one constant in human life, it is that it does not last forever.

An old mare returns to her childhood clubhouse. The past is gone, but she still remembers.

Cover Art by Follow Focus

'Should you never know me as any but your guard, your protector, I could not deny my love for you any more. I love you, Princess Luna, and your broken heart i want nothing more than to see whole again.
And so i sign this letter with all my hopes and dreams, even my heart, sealed within. I am yours, heart, mind, body, and soul. And I pray you find your light, my dearest Luna, because you are more deserving of hope and love than any other.'

Celestia has finally left this world, and Twilight has to step up to her place as Princess beside Luna, becoming Regent of the Sun. She has to learn what being a Princess entails, and live up to Equestria's standards.

Two Arcs. (More arcs will be in Sequels)
Arc 1-Chapters 1-6
(7 is a Bonus, all about the laws of Equestria. It will be updated irregularly.)
Arc 2-Chapters 8, 10-? (9 is a Bonus about magic, and will be updated irregularly)

Note: bonus chapters are not necessary for the storyline, but help comprehension.

The battle from Chapter 5 is in a separate story, Maripony Massacre

I now have a Beta-Reader, Arc 2 Chapter 2 -Arc 2 Chapter 6. Thanks to imperfectPacifist!

I have an editor, Arc 2 Chapter 7. Thanks to Commander Fire Starter

Credits for OCs:
Alexandria (by Elric of Melnipony) Alexandria's info here, first post

It's been a thousand years since anypony has seen the sun.

A thousand years since Celestia's name has been spoken, and all memory of her warmth and light has faded away into the night. The sun goddess of old had been killed during a coup by her sister, Nightmare Moon.

In this world of unrelenting darkness, three ponies find a ray of light. Hope.

Unlike the members of a certain cult Cleo's eyes were naturally turquoise but still every pony feared him even after the cult had disappeared from the equistria
yes this is a sequel to past sins

An Optimalverse story.

CelestAI creates worlds. Perfect worlds, perfectly suited to satisfying the values of the pony living in them. Every pony is different, so every world she crafts is its own work of art.

And every piece of art tells a story.

I'm told Equestria Online is a lot of fun once you get into it, since the game world adapts to your interests. But what happens if you don't even know what kind of pony to play? At least it's not like my character is a choice I'll be stuck with forever. Right?
Set in the world of Friendship Is Optimal.

Note: This story was intended to be much shorter. As a result, the tone and POV change after chapter two, a known problem. I'm considering going back and editing that shift. Suggestions welcome.