Having failed to reach Davy Jones' Locker with the rest of his crew, Captain Hector Barbossa finds himself stranded within a hell many times more terrifying; a land infested with magical talking horses and little baby dragons. Despite the odds being stacked against him and the inhabitants of Ponyville at his back every step of the way, he vows to return to his own world and finish the quest he started.

If only fate did not have a new adventure in store for him. An adventure that could very well change the fate of Equestria and the Caribbean seas forever...

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)

An undead Emperor in need of a new body. A Spartan lost in space. A ragtag team on a suicide mission. What do they all have in common? They all wind up on the magical world of Equestria, where war has been forgotten. That, however, is soon about to change.
When each of them is about to be retrieved, ancient evils arise to unleash hell upon the unsuspecting world. When the forces of three galaxies clash around them, can our favorite ponies hold out against the onslaught?
This is a crossover involving Warhammer 40k, Halo, Mass Effect and MLP, and is also my first fanfic. Comments and reviews are welcome.
Rated T for language, violence, and general adult situations.
Now on Tv Tropes!

Twilight is invited to Canterlot to compete with some of the greatest magicians in the world for the Moonstone Cup, a prestigious award for the most powerful and skillful magicians, unicorn and otherwise. Can she win? What sort of competition will she face?

Awesome cover image was taken from NoOneBahtim

A young man lost in the hilly embrace of a mountain sleeps the night away under a knot of tree roots. When he wakes he will find himself thrust into a strange new environment, the Everfree Forest. With only his pack and his experience as a Boy Scout to aid him, he must survive, make sense of his surroundings and with some luck, ultimately find his way home. What does one do after wandering beyond the edge of the map? And better yet...

What if you are not alone?

I have been reading fan fiction here for a while and wanted to give something back.
My first fiction ever so constructive criticism is welcome. Fair warning, it takes a while for me to write a chapter so expect gaps between updates.

[Hiatus notice: As of 10/1/2022 this fiction is on hiatus so I may focus on other projects and items, will resume at a later date.]

Rated teen for strong language

Awesome cover art by Carnelian. Seriously, the guy has major skills with how fast he drew this up.

and of course ALL CHARACTERS / REFERENCES BELONG TO THEIR RESPECTIVE OWNERS. “MY LITTLE PONY FRIENDSHIP IS MAGIC” IS OWNED BY HASBRO

NO PROFIT WAS MADE IN THE CREATION / DISTRIBUTION PLEASE DONT SUE ME OR ANY PARTY THAT DISTRIBUTES THIS WORK (unless they try to sell it, then by all means go nuts)

"Millennium Wake: Part II" can be found here!

Rarity awakes after a thousand years of forced magical slumber. How will she cope with a world where everypony she ever knew and loved is long gone, a world that has moved on without her?

Editor in Chief: GaruuSpike

Now has a TV Tropes Page!
http://tvtropes.org/pmwiki/pmwiki.php/Fanfic/MillenniumWake

Additional Editors:
Darthrex
Zervziel
SennenRyu

Cover art by:
ShadowSolstice
at
http://browse.deviantart.com/?q=millennium+wake#/d59hfdd

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.

SF (canon species only; no humans) Ponies were magically and genetically engineered to be the perfect servitor race. They are powerful, adaptable, intelligent and completely under the control of their creators. A laboratory accident frees one such pony from her mental chains, but how can one mare save herself and the rest of her kind if she doesn't even know she's a slave?
This is not the Equestria you know and these are not your little ponies... not yet, anyway.

Tags: Adventure, Diamond Dogs, Gryphons, NO HUMANS (did I mention that already?)
Other tags: historical, mind control, Clarke's 3rd Law, excessive use of high energy physics, before they were famous.
Detailed review by PaulAsaran.
Cover art by endrome , used with permission.
Russian translation (partial -- 'unofficially' completed in the comments)
A Soot-Covered World, book 1.

From a young age, Ditzy Doo knew she wasn't like most ponies. Jinxed and uncoordinated, she was shunned from all social circles as she grew up. When a friend finally comes her way, Ponyville's residential mailmare will surprise everyone—including herself—when she demonstrates how far she's willing to go to keep that friendship.

Seven years ago, a man down on his luck met the woman of his dreams. After a one night stand, however, she left him with a lot more than he bargained for. With a pile of questions, no answers, and a hundred new children, Anonymous is left to wonder what to do with his life.

Misery, one of many of the hybrid daughters, thirsts for knowledge. She wants to know about her mother, and more importantly, what her purpose is. The half of her that isn't human needs answers, and to find them, she has to go to the brightest gem in the Mojave.

Cover image is an artist's rendition of Mistake, brought to you by the illustrious DJ.

[Multiple Disclaimers Incoming]
This story has a main character named Anonymous. It also takes place on Earth. And the majority of the characters are "satyrs", which are abominations with pony (or in this case, changeling) bottoms and human tops.
If any of the above things offend you, please do not waste your time reading it and complaining about it in the comments. Alternatively, read it anyways and see if you change your mind.