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.

This story is a sequel to Justice

Worker's dreams have taken a turn for the worse. Feeling trapped, unable to talk about his experiences and unable to stop the near-nightly terrors, he wonders if he should reach out to the Princesses. It never occurs to him that these nightmares might be something more.
This is the final story of a trilogy. The first part is Order from Chaos, and the second is called Justice.

This story is a sequel to Order from Chaos

Worker has found happiness, health, and most importantly, home. Now he struggles to defend those who made his new life possible while he wrestles with his own demons.
A belated sequel to Order from Chaos.
Concluded in Hope.

A handful of pages recount a remarkable journey to Equestria by someone who sought only a little peace. The story continues in Justice, and concludes in Hope.

After the Changeling invasion, Celestia and Luna make the decision to have Twilight investigate the Elements of Harmony and solve the mystery of their power.

A thousand years later, Rainbow Dash awakens in a world she does not recognize. She has no idea how or why she came to be there. She does not know the language, the geography or any of the rules of this new time. She soon finds allies in Star Fall, a scholarly pegasus whose Talent is Magic, and Astrid, Star Fall's Griffin guardian. Together they set out to discover why Dash has been sent to the future, and how she might return to when she belongs.

War threatens the nations, a Nightmare stalks the shadows, and Rainbow Dash's arrival has turned her into a wild card in a deadly game that pits the law on both sides of a broken Equestria against a mysterious criminal figure, Max Cash. Yet the stakes are higher than anyone knows, for in her research Twilight Sparkle discovered a dark secret about the Elements, something that will shake the foundations of the world.

Cover image by SierraEx
Has a TvTropes page

The discovery of a tiny extraterrestrial object within our own solar system makes a strangely equine alien race aware that the Earth is inhabited by an intelligent species, and they're on their way to come visit.

But since space is a really, really, really big place, they aren't going to get here for about a thousand years. They do have FTL communication, though, so while we wait maybe we'd like to be pen pals...

You could win a free one shot commission! Check the associated blog post for details.

'John Smith' has settled in Ponyville with his wife and two daughters for many peaceful years. When the TARDIS gets a temporal distress call, Doctor Whooves and his family find themselves lost in time. Now Derpy must contend with not only monsters and maniacs, but the future and past versions of her husband!

Current description is outdated and horrible. Thank you for your patience while I figure out one that actually does this story justice.

Note: I think this story works better if read without the long synopsis. The sex and gore tag refers to light content of both. Think summer-blockbuster.

The story is a HIE with post-cyberpunk in the mix, and most of the human main characters are full-body cyborgs meant to look like MLP:FIM characters. If this is enough to grab your interest, then please skip the below text.

Spoiler prevention.
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It is the year 2310 and trans-humanism is within the grasp of anybody that cares for it...

The public responded with "Eww..."

Even so, life and technology marches on.

Such as in the Pheidippides, humanities first try at a manned starship with a range outside our solar-system.

But not all see it as a glorious day. The Ludz, a neo-luddite terrorist group is howling for blood...

And that was before Captain Gregory starts recruiting heavily among the transhuman community.

The response, sabotage of the experimental engines.

Now, stuck in orbit above a world that shouldn't exist, in a ship that barely is holding together and most of his crew dead or wounded...

How exactly do you perform first contact... when your experts looks like bad imitations of the heroes of the land?

The other character tag refers to: Shining Armor, Cadance, Luna and Celestia.

Edited by the talented AppleTank and formerly edited by Razzle Dazzle. Go show your appreciation by checking out their stuff if you have a moment.

Cover by AppleTank. His DeviantArt page may be found here.

This story is a sequel to Windfall

A brilliant mind discovers a problem in search of a solution, which leads to inspiration, which leads to invention, which leads to a technological/magical advance that will in time forever change Equestria.

Sequel to Windfall, set three years after the events in that story.

Stranded on a hostile, alien world, Twilight Sparkle and Rainbow Dash must depend on one another and a fellow alien castaway if they want to return home to Equestria.(originally published on FFN)