Captain Diedrick Thompson was a Solar Fleet captain -- the youngest in recorded history. Upon getting caught in a strange magnetic storm while doing a routine patrol within his race's cosmic backyard, he finds himself forcibly relocated in space, with no idea where he is or even when he is. As isolation sets in, he finds that he will need help to figure out just what happened, and if he can find his way back home. Unfortunately, the peace-loving princesses of Equestria won't take kindly to such an imposing person making planetfall.

This story is rated T for teen.

Contains incidences of consumption of alcohol, violence and minor gore, adult language, crude humor and implied sex.

Note: This story ignores everything after the end of Season 3, including Equestria Girls; this means that Twilight never went to the alternate dimension, but is still an alicorn. All ponies and other beings present are anthropomorphic, meaning they are humanoid in shape but still have hooves, wings, fur, etc. Pony technology is comparable to our modern human technology, with a few differences.

Sergeant Gary "Roach" Sanderson and Lieutenant Simon "Ghost" Riley of Task Force 141 are revived in Equestria after being K.I.A. on the Russian-Georgian border. A massive combined evil force threatens to destroy the nation, and now the two must defend the ponies. Is there more to their arrival though?
Crossover with Call of Duty: Modern Warfare. Takes place between episodes 12 and 13 of Season 3.

This story was granted to me by JWR832, since he was unable to continue it. So, as one of his editors, I will be taking over. I will be consulting with him often, and he will be helping me change it to his liking. For my own purposes, all cursing (other than a few British words) will be omitted. I'm sorry if you don't like this, but it's just the way I write. Thank you all for supporting him, and I hope I can do almost as good as he did. This fic was just too good to die.

Featured February 5th, 2014. Keep it up, guys!
Reached 400 likes 11/11/14! Thank you guys!!!

Edit: Now a collaborative effort with Loyal2Luna

Commander Shepard has been through a lot, but now that the Reaper War's over he can finally relax and take a little R&R, right? Soak up the sun, grab a few drinks, spend some quality time with Tali, introduce a new race to the galaxy... wait, what?

In the aftermath of the war, a new species has been discovered amidst the destruction and fire. A species that have access to powers never seen before, powers which could prove vital to the continuation of galactic survival.

The Citadel Council has elected to send Shepard, along with the rest of the crew of the Normandy, to introduce Equestria to the universe outside of their solar system.

Now Shepard must wade through obstructive bureaucrats, antagonistic journalists, and the odd, angry prince in order to bring Equestria into a new age of space and adventure.

So settle in, it's going to be one hell of a vacation!

Now has it's own TvTropes page

Loyalty; Generosity; Laughter; Honesty; Kindness; Magic;
These are the pillars upon which Equestrian society stands. Upon these principles, Harmony is maintained, and civilization flourishes.

But there are other magics in this world. Intelligent life requires three things:
Wisdom, to decide upon an action.
Courage, to go through with the action.
Power, to carry out the action.

An individual with Wisdom, Courage, and Power... can change the world.

Evil unlike any Equestria has ever seen has come to the Everfree, and through proximity, Ponyville. The Mane 6 must attempt to overcome the darkness they are faced with; it will not be easy.

But they will not face such evil alone.

The Hero has come.

A Legend of Zelda Twilight Princess and MLP crossover.

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!)

Spartan Adam-D014 was a lone wolf assigned to the UNSC Lightning. What was supposed to be a routine mission ended up with the frigate being ejected from slipspace unexpectedly, and with Adam landing on a strange planet inhabited by colorful, friendly equines. But something's not quite right... Adam's turning up in Equestria was more than mere coincidence, and Adam is determined to find out just what is going on.

Enjoy!

Tired of Luna's constant nagging, Celestia agrees to give internet dating a try. Using the website www.notforeveralone.com, Luna helps Celestia go on dates with potential immortal suitors. Shouldn't be too hard to find true love, right?

You can make a suggestion for any immortal across any manner of genre or fiction for Celestia to date next. Just make sure they're immortal for it to work.

Updates every Tuesday and Friday.

Guest chapters for immortals I have not covered are welcome, since I won't be able to write about every suggestion someone has. Note that all guest chapters are non-canon from the main story, so there is a bit of leeway to them. Talk to me over PM's for any further discussion.

Thanks to my editors The Ponytrician and Garnot for all their help!

Cover art from the hilarious tumblr you all should check out, ~Letters For Celestia~

In the 31st Century, humankind has spread to thousands of planets in the Inner Sphere. Once united under the glorious banner of the Star League, the Successor States and their noble houses now fight bitter wars over the scraps of empire. When a JumpShip carrying a special task force from the Federated Suns suffers a catastrophic misjump, the occupants find themselves stranded above a strange, beautiful world at once alien and eerily familiar.

Meanwhile, in the peaceful realm of Equestria, Ponyville’s resident bookworm , Twilight Sparkle, has stumbled upon hints of a secret buried for centuries. A secret that may lay bare long-forgotten aspects of Pony history and culture.

Our story begins on the planet Valexa, where the beleaguered Militia has launched a last-ditch effort to call for help against overwhelming odds.

Written with those who are not familiar with the BattleTech/MechWarrior universe in mind.