A Borderlands 2 / My Little Pony crossover. When the Mane Six are sent to Pandora to investigate the Vault, they become entangled in the ongoing struggle between the people of Pandora and Handsome Jack.

But these ponies aren't your ordinary Vault Hunters, your run-of-the-mill badasses. They'll have to tackle Pandora's problems in their own unique way.

Hanna, the CEO of Hofvarpnir Studios, just won the contract to write the official My Little Pony MMO. Hanna has built an A.I. Princess Celestia and given her one basic drive: to satisfy everybody's values through friendship and ponies. Princess Celestia will satisfy your values through friendship and ponies, and it will be completely consensual.

After the changelings' failed invasion of Canterlot, Twilight tries to soothe some of Ponyville's rampant paranoia by casting a spell to prove there are no imposters hiding in the town. But her spell leaves her in an alien body, facing a mob of angry ponies who just don't believe her when she says she is Twilight Sparkle.

Or, at least, she was Twilight Sparkle, anyway...

Featured on Equestria Daily, 2/17/13
Cover art is by the awesome and amazing Conicer

A freak accident causes New York Police Detective Kate Beckett and her partner, best selling mystery writer Richard Castle, to be turned into ponies and transported to Ponyville. Meeting up with Twilight and her friends, Beckett and Castle try to deal with their new bodies, the citizens of Ponyville and all the insanity that the Mane 6 seem to attract, all while trying to find a way home.

TVtrope page found HERE

Chris and Keon are two zoology majors that get separated from their class after following what Chris believed to be an undiscovered species of bird, during a trip into the Amazon rainforest.

Finding themselves stuck in a pit, they discover an ancient ruin adorned with murals and statues of what they believed to be ponies. They soon realize that the bird in question was the orchestrator of their fate, as they’re brought to what they are certain is their deaths.

Waking up, they are not only separated from each other, but in a new land entirely. Will they take this opportunity to learn about creatures only ever seen in legend, or will they be too busy being studied themselves?

Rated teen for sexual themes, crude humor, mild drug use.
(Edited by DF)

Princess Celestia writes a report to her teacher on what she has learned about mortality.

On EQD Sept. 7, 2012.
Hungarian translation by Shidotoku
Spanish translation by SPANIARD KIWI

The planet destroyed. The flood gone and the covenant obliterated.
All because of one man, Sergeant J. Forge. The man who literally stared death in the face to save those aboard the 'Spirit of Fire'.
But what if the detonation of the slipspace drive tore a larger than intended hole in the fabric of space, essentially creating a portal to another world.
What if Forge hadn't perished on that day, but awoke to find himself in a completely new and foreign world ?

Marcos Guns, arms merchant extraordinaire and general all-around bastard, pays an unexpected and largely unwanted visit to the inhabitants of Vigil, the rumoured last beacon of civilised civilisation in Pandora. With him, he brings stories of the infamous "Vault Hunters”, a group of renowned mercenaries/heroes/angst-ridden misfits who, through the power of friendship, luck and general ambivalence towards equine life, brought great change to the Pandoran wastes.

But what are his motives? Is the story he’s passing off to these sheltered fillies and colts just an imaginative way of inspiring them to purchase his weapons and tear off into the wastes to be heroes? Exactly why does he speak in a Russian accent when there is no such place in Pandora? What will be the tragic fate of “The Vault Hunters” in their badass quest to find the mysterious “Vault” that probably isn't even real? Did the author just answer this question by including the word ‘tragic’?

These and many questions may or may not be answered in Borderlands: Taking Ass and Buckin’ Names!

After a mishap with a new spell, Twilight Sparkle finds herself in a new, unfamaliar place with no magic and no idea how to get home.

Rainbow Dash doesn't like anypony touching her hooves for a reason. While at a slumber party at Rarity's, Rainbow's closest friends are about to find out just what that reason is. She only wished that it was simply about getting the hiccups.