Luna has had enough of Celestia's games, and has found the perfect means of revenge. Using a long-forbidden spell, she transforms her sister into little more than a small filly, all so she could pull the greatest prank ever. Unfortunately, she soon learns that before you fool around with dangerous magic, you really need to read the fine print...

A sequel can be found here.

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

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

One would think that the wounded Trixie would appreciate Twilight Sparkle taking her in to nurse her back to health. But for some ponies, leaning on someone else isn't so easy. Their crossing of paths sets them both on a journey that neither of them would've expected...

Mario continues his adventure to collect the power stars to stop the Koopa King from taking over the Universe. His journey takes him to the world of Equestria where he will find unique challenges and make a few new friends. Mario's arrival in Equestria will spark an adventure his new friends will never forget.

The awesome cover picture is by Primogenitor34 from deviantart.

NOTICE: This is an unofficial and highly expanded story adaptation of the "PWaaMLPfim" Youtube Video Series: Phoenix Wright / My Little Pony FIM - Turnabout Storm! The videos came first, NOT this story!!!!

A quiet summer night in Ponyville takes a violent turn when two pegasus ponies enter the Everfree Forest and only one comes out alive, leaving the second accused of murder, on trial for her life. Ace Attorney Phoenix Wright finds himself dragged from his own world, magically summoned to Equestria by Twilight Sparkle to defend Rainbow Dash from charges of killing Ace Swift, a superstar pegasus athlete and champion racer.

Trapped in an unfamiliar world ruled by magical talking ponies, Phoenix must draw on all his wits and experience to solve the crime and uncover the conspiracy behind it... before Rainbow Dash is banished to the sun for a murder she didn't commit.

Parts 1-43 written by RavenRegios, and edited by Firesight. Parts 38, 42, and 44-epilogue written by Firesight with additional input and prereads from TheGoldCrow, AJ_Aficionado, and Leo Archon.

Ownership transferred to Firesight on 1/15/2018.

My Little Dashie by ROBCakeran53 left many wondering 'What happened next?', ty500600 took the initiative to give the story an ending, to grant closure to all those saddened hearts. The ending gave closure, as intended, but still left the readers with many questions, myself included. I have taken the liberty to answer some of those questions in this epilogue/story.

Note: In this story, ty500600's Epilogue is only true to a degree, yes it happened but it happened differently.

Dad has been in Equestria for five years now, but what has happened during his time there? What will happen in the future?

This story was initially going to be just an epilogue but I've put some thought into it and I wish to continue the tales of Dad and Dashie.

My Little Dashie : http://www.fimfiction.net/story/1888/My-Little-Dashie

My Little Dashie : A Sequel : http://www.fimfiction.net/story/5284/My-Little-Dashie%3A-A-sequel

My Little Dashie: First Bath : http://garuuspike.deviantart.com/gallery/#/d4ckqll

'John Smith' has settled in Ponyville with his wife and two daughters for many peaceful years. When the TARDIS gets a temporal distress call, Doctor Whooves and his family find themselves lost in time. Now Derpy must contend with not only monsters and maniacs, but the future and past versions of her husband!

This is a parody of avatar the last airbender, using ponies! Read as the avatar, Twilight Sparkle, travels on a journey to stop the water nation's war against the world. Constantly pursued by Nightmare Moon's daughter as well as the general of Water Nation will she be able to take and complete her first step towards becoming the avatar?
Special thanks to Duelist925 and Angel_Bunny for editing the chapters for me
Please enjoy!

Full collection:
Avatar the Last Alicorn:
Book 1.
Book 2.
Book 3.
Book 4.

Legend of Diamond Tiara:
Book 1.
Book 2.
Book 3.
Book 4.

Disclaimer: "Avatar: the Last Airbender" and all associated characters, storylines, and materials belong to Nickelodeon and were created by Bryan Konietzko and Michael Dante DiMartino.
My little pony: Friendship is magic and all associated characters, storylines, and materials belong to Hasbro, and was made incredibly awesome by Lauren Faust.

For almost a thousand years, the immortal Nightmare Moon has reigned over Equestria as Empress. To the average pony, Nightmare Moon is an overarching enigma whose rule is absolute and whose wrath is terrible. But to Twilight Sparkle, who as an orphan has never known her parents, the Empress is something else entirely. When the young unicorn is brought under the royal wing as an apprentice, she learns a great deal more about the supposed tyrant than she ever knew. But as Twilight is introduced to life with her new mentor, she is thrust into a world of political intrigue, conspiracies and secrets. Secrets that were never meant to be revealed. As allies and enemies plot against the very peace of the nation, will Twilight fall prey to the perils of her new position? Or will she prosper and find in Nightmare Moon the mother she never had?

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My eternal gratitude to my editor, LordOfTheWrongs, without whom Night's Favoured Child would not be the story it is today.

Now with added TVtropes!