Traveling between parallel universes is impossible, especially during the process of regeneration, but the Tenth Doctor doesn't have time to question the facts. He's just been thrust through a tear in the fabric of reality, gotten a new body, and landed on a planet called Equestria. Specifically, he's landed in the worst possible place in all Equestria – somewhere that's ready to unleash a “big ol' storm of chaos”.

That's just the beginning of the Doctor's strange new lease on life: there's a whole host of mysteries to explore. Who is Derpy Hooves, the gray pegasus who understands more about him than even she knows how to explain? How does Princess Celestia already know him? And what's the truth behind the Order?

Above all, the Doctor needs to discover if this new universe can heal the wounds he suffered in the last. Only one thing is certain: there's an awful lot of running left to do.

(Warning: For those of you who haven't watched up to the Doctor Who episode 'The End of Time'... spoilers. Also, this story begins between Seasons 2 and 3 of FiM, and things start to... diverge from there.)

Side stories can be found at The Merely Mundane Tales (of a Mad-Pony in a Box).

A more realistic look at what would happen if a Space Marine found himself turned into a pony.

When monsters come along and disrupt the balance of harmony. The elements are there. Nothing has ever been able to withstand the strength of the elements. Not Discord. Not Chrysalis nor Nightmare Moon. But what happens when one being crashes into Equestria after dying. Having his memory partially ripped from him doing so. What happens when this being can kill just by being in the mere presence of others. Will this person find redemption with the new residence or throw a second chance away. Follow the main six as they try to apprehensively discover and learn new things from this new creature. But will what they discover be the means to they're end. Or salvation.

This story is a sequel to You Can't C Me

Twilight Sparkle and Shining Armor were just minding their own business on the edge of the Everfree Forest.

But suddenly, a man they've never seen before steps out of the woods. His request? For one of them to shoot him in the face.

Where did he come from? Who is he? Why does he want to be shot in the face?

Who cares? Just shoot him in the face.

A crossover between the original Metal Gear Solid and My Little Pony: Friendship is Magic.

Whilst facing the legendary psychic Psycho Mantis in Shadow Moses, Solid Snake finds Mantis using a strange psychic power
to seemingly transport him to another universe, completely different from his. What's happened to Mantis? Why are there brightly coloured ponies everywhere? Is this all real, or is it just in Snake's head? And how will Snake get back to Shadow Moses and complete his mission?!

Rated Teen for some mild violence and swearing.

Sunset is bored. Discord is bored. What better way to solve their problems than a wacky time travel adventure? A trip to a strange and mysterious era, where nothing makes sense, and everything Sunset knows about the world is called into question.

The Nineteen-Eighties.

Bowser's latest scheme to conquer the Mushroom Kingdom winds up sending him and his army into Equestria by mistake. Upon failing to conquer what he thought was Princess Peach's castle, he accidentally sets free a strange looking creature encased in stone.

What unfurls is an unusual adventure between the unlikely duo of a pony and koopa, out on a quest to save Equestria and all their friends from the grip of chaos.

Will Pinkie Pie save the day? Will Bowser come out on top this time? Will He be able to put up with Pinkie's over the top, hyperactive antics? Will She get through to the grouchy Bowser and make a new friend? You'll just have to find out for yourself.

This tale is super. It's bizarre. It's Bowser and Pinkie's Super Bizarre Saga!

By simple biological necessity, one can conclude that Scootaloo has parents. And, indeed, there is a couple in Ponyville who claim her as their own. But they adopted her long ago. The documents are in Town Hall for anypony who cares to look. So, whence came the winged Crusader?

To learn that, we must go not just to another time, but another place, for Scootaloo is as orphaned as an orphan can be.

Written for F*** THIS PROMPT! 11. Prompt: Scootaloo is an orphan.

Featured on Equestria Daily.
Review by PaulAsaran

An Evil Lord learns of a forbidden spell that will destroy the world. Naturally, he intends to cast it.

No problem! Princesses Celestia and Luna will just send Twilight Sparkle to go stop him. That usually does the trick. There's only one catch:

There are only thirty seconds left to stop him before the spell is completed.

Inspired by Half Minute Hero

Hope is the faith of the young. Losing everything she holds dear, Puppysmiles embarks on the adventure of her life to find her mother, her hopes of meeting her again driving her through the horrors of a world not of her making. Too bad the Wastelands doesn't care about hope.