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 and her friends are approached by Princess Luna who presents them with a set of questions that trigger a long and perilous journey.

Did you ever stop to wonder what became of Trixie, Gilda and Blueblood after your encounters? What did these episodes truly mean to you? What role will they yet play in the lives of the Elements of Harmony?

Last, are these questions as relevant as the journey towards the answers? Who will benefit from seeking these answers - you, them, or I?

Twilight is invited to Canterlot to compete with some of the greatest magicians in the world for the Moonstone Cup, a prestigious award for the most powerful and skillful magicians, unicorn and otherwise. Can she win? What sort of competition will she face?

Awesome cover image was taken from NoOneBahtim

Rarity has risen to the highest stretches of the fashion business and high society, but she's found that not all is as it seems. In the corners of cocktail parties all over Equestria, dark conversations are found. Eventually, Rarity can take no more of this, and begins reporting back to Celestia in secret while delving deep into a world she had no idea was so intertwined with her life's goal.

How much of herself is she willing to give up to protect the throne and, more importantly, Twilight Sparkle? The life of a spy is a dangerous one indeed.

A canon story in the Rites of Ascension Expanded Universe! Artwork by Violet Squiggles. Author's Notes, including proofing credits, can be found here.

Hi, my name is Ditzy Doo. Many of you know me as the author of the 'Wasteland Survival Guide'. For 200 years I wandered the Equestrian Wasteland, and through those experiences I gained the knowledge that I shared with everypony through the Guide. Now, it's time to tell my side of the story.

Trixie appears once more in Ponyville, but something is...off...about her. She isn't speaking in third person. She is convinced that she is supposed to be the Element of Magic, that Celestia is supposed to be the Tyrant Sun, that Luna is supposed to rule as Equestria's monarch - and that Twilight is supposed to be a wanted criminal. Has she gone insane? Or is something bigger beginning - with consequences that Trixie, Twilight, and two entire worlds, can only guess at?

The long-awaited Crisis on Two Equestrias begins at last!

While reading the stories of The Lunaverse can only enhance your reading experience, it is not necessary for this story! It is being written as completely, 100% stand-alone, with no prior knowledge necessary!

Frost Windchill is known to be a storyteller of sorts. Comfortable with telling the occasional sprite tale or legend, a child approaches him one day and asks for a real story.

And so Frost tells one- the story of his life. It's not a typical story, and there's more to it- just as there's more to the descendant of a Lunar Guard. It's a story not just of himself but the heroes he stood beside- big and small, legendary and obscure. But there's something amiss, buried lies between the lines.

After all, it's hard to kill memories when you remember everything.

(Cover done by the amazing Sw1tchbl4de. Check him out here! http://sw1tchbl4de.deviantart.com/

Larger version of cover art can be found here: http://sw1tchbl4de.deviantart.com/#/d4ovlt2)

Compass, a happy maintenance technician and resident of Stable 52, uncovers an unbelievable secret hidden deep within the massive shelter that he calls home, and is forced to confront a mystery that has gone unsolved for over two hundred years:

On that fateful day, when Equestria needed him the most, where was Doctor Whooves?

This fanfiction is based on the immersively epic Fallout Equestria by Kkat. You can read Fallout Equestria by Kkat on Equestria Daily

The Fallout: Equestria logo used in the cover art was designed by DotRook and, according to his original deviantArt post, he allows usage in supplementary materials created for and associated with the series. Images really do make a difference, so, due to his awesomeness, he has my deepest gratitude.

Hope is the faith of the young. Losing everything she holds dear, Puppysmiles embarks on the adventure of her life to find her mother, her hopes of meeting her again driving her through the horrors of a world not of her making. Too bad the Wastelands doesn't care about hope.

Bioshock meets MLP in this psychological thriller, where Celestia's new faithful student, Siren Song, must discover the truth behind the city beneath the waves.

Beautiful, gifted, and faithful student of the Princess of the Sun, Siren Song has very nearly everything a pony could want. Sometimes though, in the twilight hours, Siren can see the sadness in her mentor's eyes. Once, ponies whisper, the Princess had another student named Twilight Sparkle, but she left Equestria, never to return. The pony who has a perfect life just needs one more thing—to convince Twilight Sparkle to come home so the Princess will smile again. But when Siren arrives in pursuit of Twilight, she soon finds herself trapped in a city of horrors, with only its monstrous denizens for help.

Now with a TV Tropes page!