A thousand years after the Princesses disappeared from Equestria, Twilight Sparkle meets a lost Cloudsdale scout named Rainbow Dash. Together they look for a way to end the thousand-year night and dispel the darkness that has spread across Equestria.

Edited by Pascoite
Contains fairly mild grim-dark. Inspiration taken from the Dark Souls games, but it's not strictly a crossover.
Chapters titled "Arc #: Chapter Name" are part of the main story. Chapters titled "Character: Chapter Name" are one-shots about other characters, set in the same world, and aren't necessary in order to follow the main story.

When a dark enemy begins hunting the young wizard Twilight Sparkle, the walls of the fortress library of Candlekeep cannot protect her. Not even her mentor, the archmage Star Swirl the Bearded, can keep her safe. With a price on her head and the shadow of death on her heels, her only hope for salvation is the Magic of Friendship. Perhaps, with powerful allies at her side, she can find answers and uncover the truth about her destiny.

(This story is inspired by the Baldur's Gate CRPG series by Bioware, but you do not have to be familiar with BG to understand its events)

Featured on Equestria Daily
Cover by Bluest Ayemel
"I love this fic. Keep it up!" – Sethisto (on the EQD page)
"From it's fantastic character development of Twilight and fast pace and exciting action, The Sword Coast is an excellently written and well thought-out story." – Amy Clockwork

Side stories: Tales of the Sword Coast
Sequel: Shadows of the Crystal Empire
Warning: Comments contain spoilers. Proceed at your own risk.

The two-part series pilot "Friendship is Magic", but with a Kingdom Hearts twist. Aspiring Keyblade master Twilight Sparkle fails her attempt at the Mark of Mastery exam. To help get her mind off her studies, Princess Celestia sends Twilight to the nearby town of Ponyville to oversee preparations for this year's Summer Sun Celebration. But the threat of a great 1,000-year-old evil looms.

(Gasp! A Kingdom Hearts crossover! It's so original! ...Yeah, I know it's been done countless times already, but I just couldn't say no. I love Kingdom Hearts; I'm not exaggerating when I say it's the only thing I love more than MLP. 'Blasphemy! Burn the heretic!' I can already hear some of you thinking. Again, I thought the opportunity was too good to pass up. And so here we are.

Fair warning: if you haven't played any of the Kingdom Hearts titles, much of this story will likely go over your head; only the bare minimum of accessibility will be given to series newcomers. Secondly, as this is a Kingdom Hearts take on the "Friendship is Magic" two-parter, Sora, Donald, Goofy, and other KH characters will NOT be appearing. I feel I should make that clear so I don't end up disappointing those of you hoping to see your favorite KH characters as ponies.

Also, if this turns out to be popular, I may do Kingdom Hearts versions of other MLP episodes and even some completely original stories.)

My Little Pony: Friendship is Magic © Hasbro
Kingdom Hearts © Disney/Square-Enix
Cover art by Akili-Amethyst

Just another glorious day in Ponyville, till the nanite infection is activated. Now it's up to Rarity and an infected Twilight to save the world. This will prove easier said than done though as old friends, enemies, and teachers come out of the wood work, and they all want to shut down the intrepid pair. But have n/ ...detgruhfihvdsivbhdsfh
.
..
...
Insubordinate data terminated. Run Program: Imperium.

Credit for the cover pic goes to Thattagen of here and Deviant art. Be sure to like, fave, and follow.

[Complete!] When Rarity finds out how little Twilight gets out of the Library, things get out of hand as she decides to take it upon herself to teach Twilight the ropes of dating. As Rarity drags her around, Twilight begins to have a good idea of who she wants to ask out.

The Great Tragedy. The night an era ended. The night the skies stopped turning. The night the Canterlot palace, along with all of its occupants, was utterly obliterated.
Nopony knows how it was done or by whom. But they do know that one unicorn stood at the center of that calamitous explosion, and they know that Twilight Sparkle survived where two immortals had perished.
Twilight awakens in a world a shadow of its former self, abruptly thrust into the fallout of a disaster she remembers nothing of. Faced with a foe that is perhaps more familiar than she might realize, Twilight must find a way to restore her broken world and carry on the legacy of her beloved princesses.

Huge thanks to my proofreaders Some Person (chapter 1-12) and RazerWrites (chapter 12-14). The story would have been much worse off without them.

"It's so nice to see you again!" said the thing that was not Celestia. "Oh yes, I know who you are, Twilight Sparkle. I had a taste of your magic the first time we met. Mortals forget things so easily, I find. Allow me to refresh your memory: you tried to kill me. But you failed, Twilight Sparkle. You only mostly killed me. And I guess that makes you one very unlucky little pony."

Twilight Sparkle broke time when she got her cutie mark. Now Twilight and Sparkle are sisters from another time. Twilight is hailed as the potentially greatest light magician of all time, and already has a reputation as a hero by the time she goes to Ponyville. This isn't her story, not primarily.

Sparkle is an orphan - her dark magic killed her parents. She lives with her brother in Canterlot's industrial sector because they can't afford anything better. She can't leave either. She's a natural dark mage; while Sparkle won't go mad like Sombra, her reputation is hardly any better. Worse, the law doesn't see her as a good pony.

The fact that the dead don't stay dead around her, or that Thorn - Spike's double - is an undead, soul-eating abomination, are other matters altogether.

(Also has some Slice-of-Life, but fimfiction tags won't let me put it with Adventure.)

Has an ask blog to go with it: Ask Sparkle and Thorn.
Also has a TvTropes page: Split Second Tropes.

Featured on EQD.

Cover art by Swirling Line.

This story is a sequel to Split Second

Twelve years ago, she broke time. Two alternate timelines exist, each with a different version of Twilight Sparkle. Both versions of her are able to see the other. In this timeline, Sparkle is a Necromancer.

Or rather, she was. Sparkle is dead now, not that she cares. She's got a new body. With Thorn (her undead dragon son) and Cobalt (her apprentice and an assassin for hire) at her side, she's ready to take on the world. Again.

(Spoilers in the comments. Read at your own risk.)

Featured on EQD.
The Tv Tropes page
The Ask Blog

This story is a sequel to Split Second and won't make sense without it.
This story also loosely shares continuity with Lupine Tree. Reading that is not required.

Cover art by Swirling Line.

This story is a sequel to Seven Days in Sunny June, Book II

A Tale of the Berylverse. Joint project with BlueBastard and Flynt Coal.

In the past year, Sunset Shimmer's life has changed radically and now she finds herself with a family and friends - a life she treasures. But changes are on the horizon, challenges and issues that might push the former unicorn to her limits and beyond.

But Sunset's never been one to back down from a challenge.

TVTropes page!