King Sombra’s dark influence was obliterated by the Crystal Heart, and the villain is well and truly dead. But when he attempts to steal the afterlife of an innocent victim, a human spirit is left hurtling towards Equestria, where this unfortunate soul is revived into the only vessel available: the reconstituted body of King Sombra himself.

Thus, a cheerfully oblivious alien is crammed into the form of the most evil and malicious being Equestria has ever known. Not that Shining Armor and Cadence know this, of course. As far as they are concerned, the King is back and he’s lost his fricking mind.

Click here for the TV Tropes page!

Trees shorter than they should be, buildings smaller than preferred, a world filled with creatures bigger than him, yet others are near microscopic from his perspective.

Trying to find out where he should fit in is hard, because he is not too small, but most definitely bigger than most. Once he connects to the dominant civilization, a whole new world of opportunities is revealed before him.

He will walk as a giant. He will walk with giants. He will walk alone.

Edited by Newbiedoodle, CheesewedgeFTW, Immortan Joe, and Silas

Jason's life has grown dull. While some may have thought that the weekly monster attacks might have kept him on his toes, he had grown to learn that as the norm around town. Now, after months of living in Ponyville, he can't shake the feeling that there is a void in his life. He follows his usual routine every day: breakfast, a quick shower, followed by a quick walk to the park to read the newspaper. One morning, he finds two parents playing with their filly in the playground. As he watches, an idea sparks within his mind: why not adopt a pony of his own?

Featured on Equestria Daily

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!)

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!)

Jessica finds herself flung into a world she has little concept of. Everything is strange and new to her, but worst of all she cannot communicate with the native inhabitants. A world of monsters and sapient ponies, griffons and other assorted beasts is no place for a human girl.

How will Jessica cope? Without an understanding of their language how will she make her way in the world, will she even be able to ever communicate with them? Why was she even brought into the world and is there even a way for her to get home?

(Thanks to Tulip for the Cover image!)

(Also now apparently has a Tv Tropes page in the making. )

Now has a re-telling in progress focusing on the Equestrians' side of things, A Stranger Among the Voices

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.

Twelve thousand years ago, humanity was driven into a war with an unknown enemy. Fire rained from the heavens and the sky turned dark as the sun dimmed. Acid poured from the clouds and a plague was unleashed upon mankind: A virus that caused men to turn on one another. A disease that forced man to fall to his knees and beg for mercy. A pathogen that ravaged man’s civilization.

And when humanity lost all chances of reconciliation, all hope of keeping their loved ones safe, they pulled the plug, three hundred souls left Earth while sacrificing their only home to the angel of the enemy.

In the twelve millennia since the Great War, all traces of humanity have been wiped from the surface of the Earth. In man’s rightful place now are a multitude of sapient species. For twelve thousand years, these animals have lived in peace and harmony, man reduced to nothing more than but a myth, a folk tale, a legend.

But word has spread across the countryside. Word of forgotten beasts that still walk the western wastelands. Creatures able to bend the world to their will without the help of magic. Creatures said to be older than time itself.

Teen for language, and dark moments. Character tags will be added as the story progresses

A botched viewing spell has sent Twilight Sparkle to Earth and into the care of Kyle West. Having been turned into a human, the local species, Twilight Sparkle relies on her host to help her as she finds a way back to Equestria. And, in the meantime, she decides to learn about humans and the world they live in; the good, the bad, the beautiful and the ugly.

Now With TV Tropes Page!

TVTropes page yay!A human arrives with a house in Ponyville. The Mane Six, and Princess Luna must deal with this new arrival. But not everyone agrees how it should be handled, not everyone agrees on what danger it represents, or the benefit it can be to Equestria.

The inhabitant must also deal with the new rules and conventions of this new world it knows nothing about, as well as the mystery of its appearance, and the incongruities of its arrival.
TVTropes page yay!