This story is a sequel to Stardust

Twilight has finally returned home from the harrowing challenge that Discord set upon her, and the residents of Ponyville and the Elements especially look forward to having their dear friend returned to them.

Twilight, however, has changed. Still suffering from her injuries, almost incapable of using magic and haunted by the memories of her time on Earth, she becomes increasingly withdrawn from those who were closest to her. Will her frustration at her current state and her friends inability to understand her experiences cost her what she valued most before Discord's bet?

(Sequel to Stardust, familiarity with this is recommended!)
(Proofread by Arzoo!)
(Coverart commission drawn by the amazing KairaAnix!)
(Crossover with XCOM: Enemy Within, though the crossover and human elements are minimal)
(Featured 4/28/2014, thanks folks!)

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!)

Both Link and Epona race to fight evil once again, however once they make it to the thing that is behind all the monsters that roam Hyrule, they get a big surprise. Once again, Equestria is threatened by evil and Link is once again called to the line of duty. Isn't he?
~~~
[NOTES]
I will add tags as I go along.
Cover image was made by Aeroflyte on DeviantArt, which can be found here, go check him out.
Now edited by these people: m2pt5 and Crescent Quills!
Based off of the Ocarina of Time timeline (which includes Majora's Mask), but takes a few aspects from Twilight Princess.
~~~

Commander Ashley Williams, Council Spectre, has seen a lot in the seven years since the end of the Reaper Invasion. Even though the Reapers themselves are helping to rebuild the war-torn galaxy, the peace that Shepard bought with his life is tenuous at best. Many individuals still hold onto their lingering hatred of the machines that butchered millions and feel the Council has betrayed everything the war was fought over.

And when a species is discovered that posses abilities that seem almost impossible, it falls on the shoulders of Commander Williams to keep their power from falling into the wrong hands...

Inexperience is a foreign concept to Celestia. At least she thinks it is. Right up until the moment a rash decision leaves her with a student who is a dozen years younger than what she's used to.

Enjoy.

Celestia has become emotionally withdrawn and disconnected from her little ponies. The imprisonment of Luna compounded with the constant loss of any who got close to her, she has forgotten how to connect with another pony. Until a small, injured filly who is equally distant after the loss of her parents stumbles into Celestia's life. Now, both ponies will help the other heal and rediscover once more what it truly means to be a pony.

A 'Mommylestia' story, the concept of which has been in my head for some months. I will be sticking rather close to canon for events, the major differences are that Twilight's parents are dead, and Shining Armor is a few years older and already dating Cadance at the time of this incident. I plan to keep mostly everything else the same.

This story is a sequel to The Lovely Bones: Afterlife of a Murdered Pegasus

Decades after the end of the killings of Pinkamena Diane Pie, Twilight Sparkle is the last of her friends to be greeting death. With those she loves most by her side, she prepares herself for the final journey that will lead her to all those she has lost.

This is the story of a young pegasus stallion, or you specifically. After the passing of your mother, and your ever increasing distant father, your brother has never felt safe in the cloud home. Afraid of heights and normal life in Cloudsdale, you decide to abandon your former life to start a new one on the ground, in a town called Ponyville. While there you find a cute mare that runs the local post office who goes by the name of Ditzy Doo.

On the 996th anniversary of Nightmare Moon's banishment, Princess Celestia plucks a quartet of strange entities from the night sky. With her fifteen-year-old student, a rising Royal Guard officer named Shining Armor, a young Princess Cadence with an unrequited crush only the subject and his sister are oblivious to, and a small team of Royal Guards, she investigates. Their discovery is breathtaking to the ponies. What happens after ensnares the small US Special Operations Command task force led by Captain Scott Mitchell of the Ghosts, who through fate or misfortune found themselves on another world.

The events that occur over the next few months threaten to change Equis forever, as a series of low-profile conflicts that have long remained outside Equestrian borders begins to encroach upon it. As things are, lies, treachery and secrets are what is keeping Equis from tearing itself apart, and at the same time are the very things that may destroy it.

But if Captain Mitchell's team and the accompanying Special Forces can complete their new mission against all odds, then Equestria and the rest of Equis will never know what really transpired, or the true driving forces behind the long-hidden conflict. Because they're Ghosts, and they were never there...

Note: Uses characters and appearances from console versions of Ghost Recon Advanced Warfighter 2.

DISCLAIMER: Not inspired or influenced in any way by Titanomachy. The author has never read that story, only seen it featured and guessed its content based on the title and description. Any similarities are purely coincidental, though Greek mythology is a significant literary inspiration.