I used to be a human, but then I pissed off a wizard. Now I'm stuck in "Ponyville", in a land called "Equestria", and with no apparent way back home. I'm also pretty sure that I've just replaced somepony. I'd rather not have to answer any tricky questions, so I'm better off trying to be this unicorn whose name has been forced onto me.

My name is Twilight Sparkle, and I'm not a pony.

[Rated Teen for extensive use of vulgar language and sexual references.]

[Cover art made by richhap on deviant art. Unamused Twilight, go figure.]

[Brybrythesciguy is working on a cool audiobook of this story right HERE. The characters' voices are even simulated with an AI! I definitely recommend giving it a listen!]

Darth Vader is one of the most despicable forces in the galaxy. Once a powerful and respected Jedi Knight, he betrayed the Galactic Republic and Jedi Order for the dark side of the Force. The newly christened Sith Lord was apprenticed to Darth Sidious and quickly became a master of the dark side. Vader was soon the scourge of the Jedi, continuing the Great Jedi Purge by slaughtering all remaining Jedi.

An extension of Emperor Palpatine's will, the Dark Lord was constantly on the move, traveling throughout the galaxy to defeat rebel uprisings and kill any surviving Jedi. This mission brings him to the edge of the Outer Rim into the Unknown Region of the galaxy, in an unknown star system. High above an unnamed planet he duels with one of the last remaining Jedi in the galaxy in a starship battle. But during the battle his ship is damaged, and he crash-lands on the mysterious planet.

With his connections to the Galactic Empire severed, Vader must find a way out the land known as Equestria, inhabited by the strange creatures known as ponies. That, or he could take it over.

This story is a sequel to The Dresden Fillies: False Masks

It's been a while since the girls have seen their good friend Harry Dresden. Discord escaped, Luna attended her first Nightmare Night, the Royal Wedding was crashed by hordes of changelings, and Pinkie Pie threw a statistically improbable number of parties. They tried inviting Dresden, but between his new job and new apprentice, he always claimed to be too busy. The solution was obvious; if he couldn't come to his friends, they needed to go visit him. Besides, they say Earth is lovely this time of year. What could go wrong?

Loyalty; Generosity; Laughter; Honesty; Kindness; Magic;
These are the pillars upon which Equestrian society stands. Upon these principles, Harmony is maintained, and civilization flourishes.

But there are other magics in this world. Intelligent life requires three things:
Wisdom, to decide upon an action.
Courage, to go through with the action.
Power, to carry out the action.

An individual with Wisdom, Courage, and Power... can change the world.

Evil unlike any Equestria has ever seen has come to the Everfree, and through proximity, Ponyville. The Mane 6 must attempt to overcome the darkness they are faced with; it will not be easy.

But they will not face such evil alone.

The Hero has come.

A Legend of Zelda Twilight Princess and MLP crossover.

This story is a sequel to Stardust

When Equestria’s newest member of royalty asks for aid to be offered to her friends from abroad, the best and the brightest volunteer to serve. Captain Steel Song of the Dusk Guard are immediately mobilized to help XCOM defend their world from the enemies that besiege them. However, their first joint operation with the humans takes a turn for the worse and they quickly find themselves fighting for their lives against the full force of the monsters that threaten Earth.

(Stardust/Dusk Guard crossover)
(Coverart provided by a friend of Viking ZX!)
(While familiarity with both stories isn’t required, it is recommended)
(Many thanks to Arzoo for pre-reading!)
(All screenshots can be found at XCOM.wikia.com)
(Featured on 3/13/2013. Thanks everyone!)
(Now has it's own section on TVTropes as part of the Stardust series!)

"OH! That would be the Elements of Harmony! They're the neatest thing! We each get a jewel necklace--Twilight gets a sparkly tiara--and we used them to defeat Discord and Nightmare Moon with rainbows that go pewpewpew-!"

A clawed glove wrapped over Pinkie Pie's lips, silencing her.

"What does the pink one speak of, pony?" He demanded of Twilight, who sputtered at his question. "Do these 'Elements' hold the power to resurrect humanity?"

"I'm... not sure." She returned, halfheartedly. "They're pretty powerful..."

"Where are they?"

"In Canterlot, the city on the mountains, but-"

He dropped Pinkie and stomped off, leaving her to flop around her stretched-out lips. Twilight saw that he was going out the door and in the direction of the city she had mentioned.

"W-wait! Stop!" She galloped after him.

In a moment of weakness, Chrysalis had more than a taste of Shining Armour's love. 11 months later, Twilight Sparkle finds herself a brand new niece by way of 'A small foal in a basket on my door step'.

Special thanks for the picture by Awilldrawforfood1
Now edited with DoomManta.

This isn't where I belong. I left all this behind years ago, moved on with my life. But a mare from my past brought me back, and now she won't let me go. So I'm stuck here, trying to make the best of it with ponies that don't understand me, don't even like me. But when something moves in the darkness, and when things go wrong in the cold, dead night, they'll turn to me to try to set things right.

Why? Because once a police pony, always a police pony.
~~
This is a spin-off story to 'Why am I Pinkie Pie?!', and will contain spoilers for that story, but it's not necessary to read that story to understand this one.
Cover art by the talented Conicer
Need more Cinnamon Swirl? Merlos the Mad wrote a fanfic of this story!

There is now a side-story: A Hard Day's Nightmare Night

[Prototype2] / MLP:FIM crossover

Not all of Alex Mercer's "Evolved" were loyal psychopaths. Some were simply desperate people who Alex thought he could easilly control once he infected them with the "Mercer Virus". However Alex was never one for fool proof plans as he quickly finds out when only a handful of his Evolved army show up at that fateful final battle between him and Heller. Oskar was one of the many of dozens of Evolved that stood by and watched as Alex was consumed and now he finds himself in a strange cutesy land filled with talking ponies. Can this viral being find peace in Equestria or will his need to be secure get in the way?

Warning: No editor so a few grammar errors can be expected :S hopefully nothing jarring though

A big thank you to EvilBob for the picture and to Fluttershade5300 for doing some post release editing for me

After discovering that Cadence is not who she appears to be, Twilight is sent to another world entirely by the disguised Changeling Queen to avoid her plan being disrupted.
When Twilight lands, she discovers that not only have Spike, Owlowiscious and Peewee followed her, but that they've arrived in a world where the main sentient species is human.
There's still a place where they teach magic, though.
Crossover with Harry Potter. Twilight will be effectively taking the role of Hermione.

I've marked this story as cancelled to reflect the unlikelihood of it continuing. If I do come back to it I'll revert that.