This story is a sequel to Stardust

Times are changing for Equestria as Twilight’s return brings with it news of people and cultures from beyond the peaceful world everypony knows. Aid and volunteers are freely offered to help the besieged humans of Earth because every Equestrian knows that’s what good friends do. Unfortunately, making friends can also have the unintended consequence of making enemies.

When the monsters besieging the humans strike at Equestria with a level of brutality not seen in over a thousand years, the cry for help is sent to all the kingdoms of the world. Honored allies step forth to fulfill ancient treaties and oaths. Enemies, old and new, bury their grievances. An alliance never before seen in Equestria will be created to combat the monsters from the void.

And because of these events, a grim but welcome sibling to the XCOM project is born.

(XCOM/FiM Crossover)
(Sequel to Stardust, which I recommend reading before starting this. Fortitude Amicitia and Broken aren't required reading but are supplemental to the storyline)
(Gore tag for blood and violence)
(Alternate Universe tag because of the divergence from canon that Stardust has caused)
(Uses elements of Season 4)
(Coverart produced by the amazing Carnelian!)
(Many thanks to Arzoo, BradTheBrony, Vandenbz and Setokaiva for prereading!)
(As of 03/07/2016, the prereading team consists of Arzoo, BradTheBrony, Noble Cause and Metallusionsismagic!)
(Complete with it's own TVTropes page as part of the Stardust continuity. Could use some updating!)
(Character tags will be added as chapters are added!)
(Featured 5/12/2014! Thanks folks!)
(Possible spoilers in the comments! BEWARE!)

Twilight Sparkle has ascended to alicornhood. It's the proudest moment of her life. The happiest moment in Celestia's recent memory. But not all is as it's supposed to be. A second star appears just after her ascension. When it lands an exact copy of Twilight as a unicorn is revealed.

A human goes skydiving for the first time. Unfortunately, his parachute has some difficulties. After a hard landing and a second, slower fall he finally makes it to the ground safely. Now in the form of a purple unicorn he has one question. Does catastrophic brain trauma carry into the next life?

Sex tag for vulgarity
Featured Feb 6, 2017

It occurred one peaceful night. Half of Equestria awoke to the sound like a double-shot thunderclap. A percussion heard in the skies and rattling windows from Apploosa, to Canterlot, to Ponyville. Nopony knew what it was or what it heralded for the world as it drew a line across the nation.

For Twilight Sparkle, this isolated incident might have faded from memory after a time, if not for the strange rumors of a creature sitting on the hill on the outskirts of town.

These are her thoughts given written form. These are Sparkle's Notes.

Report EVERYTHING to the Princess.

This story is a sequel to Millennium Wake: Part 1

A thousand years of magical sleep have stranded Rarity in a future not of her own making. Her friends and loved ones are long gone, leaving behind only enigmatic echoes, twisted replicas that offer more menace than hope. As she seeks to move on, Rarity has managed to make new friends, but how far will she go to ensure their survival?

This is Part II of Millennium Wake, be sure to read Part I, written by Chaotic Dreams, first.

Cover art by DShou

Editing by Zerzviel
Prereading Anarchy Archer

The sequel to Role Reversal.

It's been several weeks since Smarty Pants began her life at Sweet Apple Acres. Even after the night she shared with Big Mac, he hasn't realised her true intentions. Seemingly, his definition of 'friend' is very different to her own. When Smarty catches wind of an upcoming competition, she hatches a plan in the hopes of finally making Big Mac understand her feelings. What can possibly go wrong?

Pre-read by the, oh, so lovely RainbowBob, and edited by the omniscient Fluttrick!

Teleportation. It is the best possible way to travel... As long as you don't think about it too much. As long as you don't ask where Twilight goes in that split second when she's neither here nor there.

The sound I listened to as I wrote it, available to you in order to give you the option of having the same atmosphere.

No relation to the other story with the same name, just a coincidence of both picking the same excellent title. I was unaware that the other one existed.
Dramatic Reading by Charles Spratt | Second Reading by TheDizzyDan | Third Reading by Crafty Arts | Fourth Reading by Stormy787
Russian Translation 1 (by Aloz) | Russian Translation 2 (by Doof Ex Machina)

Twilight Sparkle is an expert in unicorn magic, but earth pony magic remains a mystery to her. The books in her library have very little information about the earth tribe's abilities, other than their famous strength. Twilight is determined to uncover their secrets.

What she learns will change her life.

And it just might change Applejack's life as well.

Featured on Equestria Daily.

The battle is over. 

Chrysalis and her co-conspirators have lost, against all odds, defeated once again by the power of friendship (and overwhelming numbers). For their crimes they find themselves imprisoned in stone, petrified and locked away, and it seems as though their punishment will last forever.

But the new Princess of Equestria isn’t finished with them just yet.

From father to son to grandson to great-grandson, on and on down through the centuries, Celestia has continually found love and comfort from a singular line of remarkable stallions. For a thousand years, she has been romanced and bedded by a succession of lovers from what may very well be the most charming, suave bloodline to ever exist.

Then Luna returned from the moon...

Cover art by StarBlaze25