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!)

"Dear Princess Celestia, as your (former) most faithful student, I feel I have to warn you that this is probably a trap. Chrysalis cannot possibly be serious about this. Why would anyone, much less her, want to shoot a documentary on us?"

Chrysalis, queen of all the changeling hives and infinitely cunning architect of their plans to conquer Equestria, has a problem: She knows diddly-squat about ponies. But Chrysalis is cleverer than most—or all—changelings, and she's already devised a brilliant solution to this trifling issue: Make a movie about them.

Tenth place winner in Equestria Daily's Outside Insight contest.

Michelle Winters has had a rough life. And upon finding out that magic is real, she discovers just how interesting a transdimensional pen pal can be. And how life-saving they can become.

(Not gonna spoil the first chapter in the intro. :3 )

( This actually came onto me after listening to Pull Me Through by Aftermath. Amazing, powerful song.)

Twilight Sparkle is a happy pony. With the help of her friends she defeated Tirek. She has a shiny new castle, the kingdom is safe, and she knows the reason behind her ascension. What more could a young princess want?

She is happy, she tells herself as she digs through the ruins of her home. She is so happy she can barely smell the ashes any more.

But in those ashes she finds something unexpected: a small porcelain vase, and with it a decade's worth of unspoken questions. A mystery hiding beneath her hooves, waiting to be put to rest.

Winner of the November Writeoff event.

Sometimes, when I look at fanart... things happen.
This was one of them.
I'm sorry.

Shining Armor has everything - the wife, the house, the life. So when he rolls over to find the creature that crashed his wedding and nearly wrecked his chance at happiness snuggled oh-so-sweetly at his side, with his darling Cadance at his other, it's all he can do to keep it together and try to assemble the missing pieces.

When Twilight receives a letter from one claiming to be a changeling, she is shocked. As she starts reading, however, she soon learns that there is far more to it than she ever suspected.

Reading by Goombasa.

The story had been translated to Russian: Here and Here

Special thanks to PoisonClaw for editing.

For the Weekly Prompt (changelings) of the Hazardous Writing Materials and Challenges

David Carrian can't help but be attached to his amazing, very expensive computer. As such, when a virus sneaks onto his system without his knowing, he puts all of his focus and knowledge into removing the threat that is screwing with his memory and CPU.

But he hears something coming from his headphones. A quiet, almost unnoticeable voice cries out from behind the computer screen. On one hand, knowing that the virus is playing such sickening sound effects drives him harder to fix the problem. On the other however, he stops to think after he finally makes out the words said to him...

This tale follows heavily on the Slice-of-Life and drama side of things, but sways towards adventure halfway through the story. As of Chapter 13 (treehouse.exe V1.31), we have not reached that point yet.

Episodes beyond season three episode two are ignored.

Click here to listen to a reading of the first chapter by Griffin Productions!

Star Swirl the Bearded is lost. Very, very lost. He was certain the world was round -- or at least a hemisphere -- and not, as it now appears to be, flat and riding on the backs of four elephants, themselves riding on the back of a massive turtle, swimming through the vast expanses of space.

He's going to need a lot of magical help to get home, and the Disc is going to need help to deal with the strange creatures that followed him through from his home world - creatures whose icy nature threatens to bring about the Apocralypse.

Fortunately, the first person he meets is a wizard. He even has "Wizzard" written on his hat...

Now has a sequel!

[ Inspired off Season 5 Finale - Nightmare Moon Verse ]
Social reject, blank flank, and failed candidate for Celestia's School for Gifted Unicorns, Twilight Sparkle's life couldn't get anymore depressing even if she tried. Yet still she looks to the other things in her life to get by, such as her job selling donuts at Joe's Bakery, her best friend Smarty Pants, as well as her inspiration to someday be as great as The Great and Powerful Trixie herself! Life isn't as bad as it may seem, and she enjoys the simplicity of her daily routine, the peace of her recluse world. That is until suddenly she is targeted by the current ruling body of Equestria, Nightmare Moon herself!? Perhaps she spoke too soon. Better run Twilight, destiny is calling!

Chrysalis is beaten. Her invasion of Canterlot has failed. Her hive has been scattered to the winds. And with Equestria on guard, love is in short supply. She has failed her people, and now the future looks bleak and grim.

But there’s a change in the air. Chrysalis can feel it in her bones and in her dreams. Something is calling to her, drawing her and the remnants of her hive north. To the place the changelings once called home.

Placed sixth in the August 2015 Write-Off Event: Distant Shores.