You wake up in a land where magic is real and sapient ponies have built a civilisation. Being from a different universe, you have no understanding of their language or laws, but you're happy to have found yourself in the friendliest town there is. Good luck building a new life as their favourite... monkey thing.

Distance can drive us apart. It can also bring us closer together.

After all is said and done, and the ponies have gone their separate ways, the only way they have to keep in touch is through letters.

Original Equestria Daily post is here
Russian translation
Chinese translation
Polish translation
Spanish translation

Now with music and audiobook

A modern mage teleports himself to Equestria in a magical mishap, where he somehow saves the world tries to continue to live his life. Meanwhile, in Canterlot, a dismissed engineer makes plans to exact her revenge on the pony that stole her teacher from her. But how far down does the engineer's rabbit hole go?

Years ago, Twilight preformed a spell to teleport a notebook to herself that she needed but had left behind at her home. The spell worked, just not as she intended. The notebook was actually a diary, and it was not hers. It was the diary of a human boy, she read the diary making foot notes as she went along until, much to her surprise, it vanished. The next day she tried it again to find that her foot notes had been responded too. Over the years the two wrote back and forth like pen palls. Their friendship grew and grew until one day the letters stopped, until today, today she receives one last letter.

Pincer is a changeling, a proud soldier of Queen Chrysalis. After the failed invasion of Canterlot, he finds himself trapped and at the mercy of Princess Celestia's Royal Guard. Believing that Celestia sees his species as nothing but soulless monsters, he prepares himself for the worst. The weeks crawl by, marked by an endless series of questions he will not answer for fear of endangering his friends and family at The Hive. As his nerves wear down and his interrogators learn just how ruthless he thinks they are, they have nothing to report but his belief that they will kill and destroy his kind without mercy.

Celestia steps in to prove him wrong, and what Pincer learns leaves him questioning everything he has ever known — but also gives him hope for what he'd never thought possible.

Cover art commissioned from http://www.demonkings.com.

Now with a TVTropes page.

Centuries after most of her friends have all passed away, Twilight decides to make one last trip into the past. No interacting, no greeting deceased friends, no reunion with her beloved marefriend. Just one quick glance at a life long lost.

However, for better or worse, she'll end up getting much, much more than that.

This story has a prequel entitled The Last Train Home.
Cover art by Swan Song

Once there was a monster, whose flesh was made of steel,
A pony’s magic bound her, and she was made to kneel,
She was the pony’s servant, saw her sheltered, safe, and fed,
But when the monster left, it was the pony’s heart that bled.

Takes place seven years before the events of Familiar.

Based heavily on the sage writing advice of Nice Hat. Preread by NikitaKitten.

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!)