Twilight isn't having a very good day. An experimental spell blew up in her face, an army of changelings is attacking Canterlot, and she just died. Yet somehow, it looks like it's going to keep going downhill from here.

Given the chance to correct what's gone wrong, Twilight swears she's going to fix all this even if it kills her. Which it will. Frequently.

Cover art by Pixel Prism
Spanish Translation
Series TV Tropes page

All Princess Celestia wanted was to open a window. A simple window into another world, for no reason other than to prove their existence. She never wanted it to become a door. And she certainly never wanted anything to come through. But, as is proven so often, we don't always get what we want.

It's not all bad. What comes through is a perfectly ordinary pony. So ordinary that its very presence risks the destruction of magic itself.

Ordinary, after all, is highly relative.

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!)

This story is a sequel to Odrsjot

Rainbow Dash and the Noble Jury fly east.

Gummy is the best pet in the world! He always listens to me, never moans or complains when I talk too much, and always comes along with me without any resistance. Sure, he isn't much of a talker, but he's a really swell listener. Every day I spend with him is super fantastic!

Yet, Mr. and Mrs. Cake always look sad every time I play with Gummy. Those sillies! Don't they know that Gummy couldn't hurt me even if he wanted to? He's all gums! Duh! Even my friends have been showing "concerns" about my relationship with Gummy.

I don't know why they're being such party poopers all of a sudden!

Edited by Bad_Seed_72 and pre-read by Skeeter the Lurker and Flint Sparks.

Polish translation can be found here

French translation over here

Fan sequel over there

Equestria Daily took this thing in too. It be right over yonder

Isolated from her friends and taken prisoner in the middle of a war, Twilight must deal with the very real dangers of being percieved as an enemy as well as the nightmares of her arrival on 'Earth'. Can she overcome her own fears and the fears of her captors? Will the wayward unicorn's assistance be a boon or a curse to the 'humans?' Most importantly, will she ever find her way home?

"In short, it's a story of friendship and plasma rifles, with the emphasis on the friendship. The characters are well written, the XCOM setting is fleshed out very well, and the story is compelling. If you love XCOM, you'll love the story, but even if you've never heard of it, it's more than worth giving the first 3 chapters a read.

There's excellent action later on, but the real strength lies in the collision between the friendly and naive world of Twilight Sparkle and the desperate world of humans fighting a losing war for survival and willing to do anything to turn the tide."

--Arzoo

(XCOM/FiM crossover)
(Cover art commissioned by a friend and created by the magnificent FoxInShadow!)
(Original cover art by the amazing Carnelian can be viewed here!)
(Gore tag for blood and some violence)
(Many thanks to the studius OminousTen, Arzoo, xXFluttershyForeverXx and finally Setokaiva for giving my rambles a once-over)
(Now with it's own TV Tropes page! Get to tropin' folks!)

Collected here are the various omakes, bonus chapters and any other extra content from the Dresden Fillies series.

All of the following are non-canon to the Dresden Fillies series, except 'Ditzy Dream' and 'Obsidian Journeys' which are companion pieces to 'The Dresden Fillies: False Masks'. All stories containing spoilers will include a disclaimer.

Story image by Jameson9101322

A young Equestrian Guard recruit is ordered to attend - of all things - the retirement party of a complete stranger.

However, things at the party turn out to be not quite what he expected. As the night progresses, he learns some valuable lessons about himself and just what the duties of being a Guardspony in Her Eternal Princesses' Royal Guards entails.

(A slightly humorous yet slightly bittersweet look at the life and traditions of the Royal Guard)

They say the universe is infinite, absolute, an endless plane containing immeasurable numbers of stars, planets, and other cosmic wonders. It has no edge, no end. However, who's to say you can't just go through it?

Captain Alex Ronen of the United Global Federation, had been chosen to go somewhere no man has gone before. Only question is if he can find his way back.

Edited by: Trials

Twilight Sparkle wakes up one morning to a harsh dose of unreality. She is stranded, without her friends, on an island which matches no known locale on Equestria. Surrounded and harried on all sides by the alien and the dangerous, she will find her mettle sorely tested, and find perhaps that the best friends you will ever have in your life are the ones you make when your back is to the wall...

Thanks to CedricBale and noobie56xx for tracking down the name of the artist so I could give them credit.