A Spartan of the UNSC falls into Equestria and has various shenanigans in the land. First chapters revolve around how he meets the royalty, the mane six, and the new world in general.

An entity ends up in equestria with only partial memory's of his past, not to mention he is in an Alien body. Let the Oddness begin!
Alien Crossover
Not my best. 0_0

Cale was just a normal guy. Mid twenties, decent job, his own place. Nothing special. But one morning he vanished, only to wake up in the mystical world of Equestria. Meeting this world's ruler - a pony by the name Celestia - he'll find that his life will never be the same again.

A special thanks to my good friend KiltedKey for editing!

This is the story of a young pegasus stallion, or you specifically. After the passing of your mother, and your ever increasing distant father, your brother has never felt safe in the cloud home. Afraid of heights and normal life in Cloudsdale, you decide to abandon your former life to start a new one on the ground, in a town called Ponyville. While there you find a cute mare that runs the local post office who goes by the name of Ditzy Doo.

Three best friends end up in Equestria but not all of them are ponies. One who isn't a brony, and even borderlines on being a hater, is a griffin. Another who is more calculating and cocky but hates hiding is a changeling. Finally the last of them is a unicorn who's special talent is that he adapts and overcomes. Together these three best friends will fight changelings, ponies, demigods, and the god of chaos himself.
Artwork by Sara Germany (shaya.laperro@gmail.com). (http://saracorgi.deviantart.com/ )

Hello there. My name's James, and I'm a Metagross.

Yes. A Metagross. As in, the Pokemon.

Myself and five other acquaintances with varying degrees of friendship appeared here in Equestria quite some time ago, having all been transformed into Pokemon for some hereto unknown reason. The process of our reuniting was difficult, and we didn't get a happy ending, but we went our separate ways as friends brought together through extenuating circumstances.

Now, after being woken up from my oh-so comfortable hibernation by one of Princess Celestia's messengers, I find out that there's new, terrifying creatures terrorizing Equestria and even some of the lands beyond. By some of their descriptions, I have an inkling of what they might be.

Guess who's put in charge of cleaning up the mess.

Sigh.

Time to get the gang back together again.

This is a direct sequel to the story A Pokemon Problem. It is highly recommended, albeit not necessary to read that in order to understand this story.

Will write for a better cover image!

This story is a sequel to Better Living Through Science and Ponies

THIS STORY IS CURRENTLY BEING REWRITTEN. PLEASE READ:
I've decided to rewrite this entire story. Considering that I began this project with almost no creative writing experience, I was bound to make some pretty bad mistakes. The story flow is not well organized, and there is an unhealthy amount of redundancy and poor pacing, as well as some pretty important things that I should have included. I intend to address these issues to the best of my ability, but it will be a long and arduous task. This story means a lot to me, so I want it to be more than the mere amateur mediocrity that it resembles. So, give it a read if you want, but keep in mind that it will change. I recommend that you put this on your read later list in the meantime.

This is a Portal 2 crossover. If you haven't played Portal 2, please do that first. Then read the prequel if you haven't done that either.

After Chell finally escaped the confines of Aperture Science, a freak portal mishap down below transported her, along with the entire Enrichment Center, to the land of Equestria. Upon entering this world, she was transformed into a pony. In a strange body and in a strange land, Chell was fortunate enough to be accepted by the ponies of Ponyville, and she lived out a new life contently among the ponies.

But that peace was not to last, for GLaDOS took a particular interest in the ponies of Equestria, and after two weeks of preparation, she launched a surprise attack and kidnapped 300 ponies to serve as test subjects, including Chell's friends and the princesses themselves. Once GLaDOS had them, she subjected them psychological torture. To save her friends, Chell made her way into the one place she hoped never to see again. In doing so, she freed the ponies, defeated GLaDOS in battle, and helped bring about the destruction of the facility. Although this made Chell a hero, she paid a terrible price in that brutal fight.

Beaten, battered, and traumatized, Chell spent months recovering from her wounds. After returning home from the hospital, all she wants is to once again live a normal life in Ponyville, but to do that, she must first heal from her wounds, both physical and psychological.

At the same time, GLaDOS herself has survived Aperture's destruction. With nothing left but herself, she vows to get back to testing. Though she faces an uphill climb, she is determined to see her facility rebuilt and the testing resume, and will stop at nothing to achieve this.

Has a TV Tropes page (will need to be updated after rewrite)

The works that this fanfiction is based on are properties of Hasbro and Valve. I would like to thank Pen Stroke for writing the original story and Flyer for his assistance and advice.

Please note, this is an unofficial sequel. I have received permission from Pen Stroke, but it is not canon to the original. I hope you enjoy it, but keep in mind that this is a fan work (of a fan work), and Pen Stroke holds the rights to the original story.

When Sombra, ex-ruler of the Crystal Empire, is discovered alive and well, Twilight has her hooves full keeping the tyrannical king in check. Instead of the original plan of throwing him in a dungeon or banishing him to Tartarus, Celestia decides to go with the plan that worked out well enough for Discord.

To reform Sombra.

Pinkie takes the job, and gets right to work in helping Sombra become a better pony. Will Sombra finally change from his old, wicked ways and reform? Or will he instead strangle the annoying, pink menace known as Pinkie Pie?

Thanks to the awesomely talented Mickeymonster for letting me use his art! Check him out for even more spectacular artwork!

“When the prophecy is fulfilled and the Nine Dark Stars align, Tartarus will weaken, allowing the ancient evils that dwell within its walls the chance to seek their freedom. One such evil, vanquished long before the creation of the Elements of Harmony, that vowed to destroy the world in hellfire will lead the demonic hordes across the world once more.

Only the hero of stone, summoned from beyond the void, can truly destroy this dark evil…”

The Gargoyle, a legend that only a few know about, a warrior of stone summoned from beyond the void before the founding of Equestria.

Scott, an average guy who lives in England and has a good job, close friends and couldn’t be happier. Everything changes for him though, when he walks home one night from work and is killed in a road accident.

He awakens from a strange dream to find he is no longer on Earth… and that he is not as human as he remembers…

This… is the tale of the Gargoyle, the Stone warrior.

Cover done by me
Big thanks to, DVAN56, RainbowBob and Berry Punch for all their help!

When Button Mash was just mashing away on his JoyBoy at school. But class started with the introduction of a new student. Her name was Screwball. She looked a bit strange in buttons eyes. On screwballs first day there she was immidiatly made fun of for looking diffrent. On buttons way home, he sees her crying and tries to confort her. In the end Button made a new friend but on Screwballs side, she met her future husband.
Cover by Shadow Bolt