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injuries, almost incapable of using magic and haunted by the memories of her time on Earth, she becomes increasingly withdrawn from those who were closest to her.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!)

A man, empty.
A mare, damaged.
A life, lived.
A life - loved.

Now with its own TV Tropes page!

This story is a sequel to A Novice Swordsman in the Canterlot Court

"Everyone is a moon, and has a dark side which he never shows to anybody."—Mark Twain

Alan Williams Goldenhoof, Pendragon of Equestria, now married to the love of his life, has taken a step back from the world to enjoy life.

Of course, this is quickly ruined as the world comes to get him. Now Alan must leave behind his peaceful home in Equestria to face the rebel forces of his old enemy General Ironclaw. But all is not as it seems, for the General has a trick up his sleeve that will force Alan and his friends to face their darkest secrets.

This will get ugly.

Book 2 of the Harmony for All Trilogy.

Tiran, a former pilot and Naval Officer, disgraced from service as a result of a failed mission that left him disfigured-the details of which he only knows and refuses to talk about-finds himself in a strange place after an expreiment gone horribly wrong that while unfamiliar to him, the inhabitants of which seem to find him eerily familiar. See what happens as he tries to survive in an environment he is almost completely unsuited for: the ground. Guided only by a quirky computer construct and an eccentric local, Tiran will try to come to terms with his shortcomings, his hidden temper and his past failures.

This story is a sequel to A Changeling Queen Under the Griffon's Crown

"It's like in the great stories, Mr. Frodo. The ones that really mattered. Full of darkness and danger, they were. And sometimes you didn't want to know the end. Because how could the end be happy?[...] A new day will come."—Samwise Gamgee

Alan Williams Goldenhoof has been there and back again. He saved Equestria, saved an Empire, and even walked up to Death's door, shook his hoof, and then went on his merry way. He is loved in Ponyville, famous in Caterlot, and is considered to be a hero.

And now his heroics are about to end. Perhaps permanently.

With a shadow of arcane evil lurking in the back of his mind, and an old foe on a new battlefield, he has met his match. But no matter what they say, he knows the truth. He knows this guy cannot be trusted.

No matter what they say.

Book 3 of the Harmony for All Trilogy

This story is a sequel to Be Human: the All-American Girl Sidestories

Almost 20 years after the First Contact Lawsuit the peoples of the parallel Earths have intermingled and begun to coexist. Griffins now run for parliament, humans now sell their wares to ponies and zebras, and the interspecies families are becoming increasingly common. Indeed, peoples of the two Earths have even reached the stars together.

All of which 7.75 year old Milton Hayward couldn't care less about. That is until his father took him to see the Snowbirds on Canada Day. It was at that air show that the young boy would encounter something from that other Earth that would change his life forever.

Part of the All-American Girl saga.
Cover art by the fantastic totallynotabrony. Check out his stories as well!

This story is a sequel to Project: Sunflower

After the events of Project: Sunflower, Erin Olsen has returned to Ponyville, happy to pursue her studies in magic. After everything that happened the year before, she's looking forward to spending her days studying and having fun with her friends.

Meanwhile, on the newly discovered world of Harmony, humans and ponies work together to study this strange new world. However, their arrival causes something ancient to begin stirring. Something that may end up changing everything.

Erin will need all of her courage, all of her cleverness and, of course, all of her friends to see herself through what happens next.

Cover art by Valkyrie-Girl
Editing provided by:
Brilliant Point, Coandco, Ekevoo, Ludicrous Lycan, Merlos the Mad and Razalon the Lizardman.

This story is a sequel to Stardust

When Equestria’s newest member of royalty asks for aid to be offered to her friends from abroad, the best and the brightest volunteer to serve. Captain Steel Song of the Dusk Guard are immediately mobilized to help XCOM defend their world from the enemies that besiege them. However, their first joint operation with the humans takes a turn for the worse and they quickly find themselves fighting for their lives against the full force of the monsters that threaten Earth.

(Stardust/Dusk Guard crossover)
(Coverart provided by a friend of Viking ZX!)
(While familiarity with both stories isn’t required, it is recommended)
(Many thanks to Arzoo for pre-reading!)
(All screenshots can be found at XCOM.wikia.com)
(Featured on 3/13/2013. Thanks everyone!)
(Now has it's own section on TVTropes as part of the Stardust series!)

Set in the All American Girl universe by Shinzakura.

Some things happen beyond our control. For DJ Martinez, it was being thrust into a world across dimensions, and then suddenly reuniting with her old world in one of the worst ways imaginable.

With two worlds now coexisting, there comes new kinds of struggles and conflicts. There are the ones due to new social interactions, but also ones due to cultures of both worlds colliding.

For one man and his girlfriend, it may be far beyond the latter of even what DJ went through.