This is pretty much a self-insert, mostly done for comedic purposes.
After a mishap with an invention of mine, a friend and I find ourselves in the magical land of Equestria. How will the peaceful land of Equestria handle the influx of two humans? Will Jay and I ever find a way back home? Will anyone give this story a fair shot? Read and find out.
Things that actually involve MLP:FiM begin in the second chapter.

Here I am, thrown in as a changling Queen far before the Canterlot invasion, watch as I- A: make my whole race terrified of me B: overthrow a changeling god! C: die, a lot. D: all of the above.

What do you think?

.....wait a minute.

(Open for new cover art)

Going up to the roof for some fresh air after pulling and all-nighter, our "hero" makes the mistake of closing his eyes for a bit.
When he opens them again, he is no longer on the rooftop in Copenhagen he was expecting to be on... no he's somewhere very different, and extremely unfamiliar.
How will he react? How will the ponies react? Nothing is certain, except for one thing...

He never asked for this.

This story takes place about 8'ish years after the second season of MLP:FiM, the language of Equestria does not match any earth languages (that the main character knows of at least), and the human in question knows nothing of these ponies or the world of Equestria.
He emerges into Equestria on the roof of a building in Manehattan, not the Everfree, not Ponyville and certainly not one of the princesses' bedrooms in Canterlot Castle.

Oh! Spoilers in the comments and all that jazz, not gonna go into a whole spiel about it.

This story is a sequel to Ponies, Pirates and Peculiar Psychopaths

Chrysalis has been driven out of Canterlot, her invasion defeated. However, an old friend from her time before becoming queen is more than happy to help her succeed with her plans.

Will these two achieve their goals, conquering pony-kind and ruling over them with iron fist and hoof? Or will they be stopped in time, preserving the peace that Equestrian has known for as long as can be remembered? There is more than just dreams of world domination at work, though, this is personal for Chrysalis and her rediscovered assistance.

Hopefully, the line that 'Evil never triumphs' will prove to be correct, or else a drastic change is going to descend upon not just Equestria, but the entire world.

Thanks to Avatar of Madness for the coverart.

This story is a sequel to Nigel M Chalmers, Emperor

(15/10/2015) Turned status back to incomplete pending an Epilouge and Alternate Endings chapter as per comment suggestions.

After being banished by Celestia for his misdeeds, the alien Emperor of the Crystal Empire is back... and out for revenge.

Emperor Chalmers is not a happy space man. After being stabbed in the back by Equestria, he was sent to the depths of the Underworld. Kicked out for causing too much trouble for the wardens, Nigel now has the chance to take back his empire and show Celestia just how disappointed he is with her.

This time things will be different. This time he has friends.

After the 'Canterlot Wedding' incident the Changeling swarm was scattered across the land, enslaved by pony warlords and slavers beyond the borders of Equestria. Weak, desperate and with only a dozen changelings to her name, Queen Chrysalis resorts to summoning one of the most obscure creatures in mythology; a human.

Thanks to zinger906 for giving me the idea for this story.

After thinking over the issue of other ponies in Equestria having severe problems, Fluttershy wished to have a pony to care for and help them live a good life. While it came true, she got her wish in the form of an ambiguous pony who appears to be more timid than herself. But is there more to this pony than Fluttershy could possibly comprehend? Stay tuned for more!

Added the 'Random' Tag because madness.

My Little Pony: Friendship is Magic is copyright of Hasbro
Soul Eater is copyright of Atsushi Okubo/ FUNimation

Cover art belongs to Errick of deviantART

This story is a sequel to Predator

(The prequel story is Mature/Gore, but isn't required reading to understand the plot, just an early introduction to an antagonist.)

So, what do you do when your life takes a sudden turn for the worse due to someone else's asinine behavior? Well, if you already paid for that convention ticket and have your costume together, why not go ahead and enjoy yourself. And when your convention trip is interrupted by suddenly waking up in the world of magical talking ponies, in the humanized body of one of the most evil beings they've ever known?

Why not try convincing them you're not a bad guy and then having an adventure? What's a convention compared to that? Of course, it's not like wielding dark magic will make anything go terribly wrong...

Thanks to Asilin, Proper Noun, Exelzior, and Rocinante for their help and input.

The Rider, otherwise known as the Spirit of Vengeance has made every criminal in Eastern Los Angeles fear the dark. Why? Because in the dark, you never know when The Rider will descend upon you and force you to repent for what you did. Whether it be a prison sentence from the authorities, which rarely happens, being scarred for life mentally, or being slain for the crimes and sins you've committed. But for some reason, as soon as almost all the gangs in East LA have been brought down, the Rider disappears. And no one knows why. Maybe it was Gods way to help cleanse the sinful in East LA. Or he just disappeared. As to why, no one will ever know the answer. That is, except for the Rider himself, Robbie Reyes.

A Displaced Story

War. Destruction. Legions of the Undead. Death.

These are the things that the Terrible Lord Ains Ooal Gown brought to Equestria. His terrible reign brought the land of Equestria to near destruction.

Hope. Safety. Life.

These are the things the Hero Momonga brought to the land of Equestria. He and his allies fought the Undead armies Ains Ooal Gown brought to Equestria, fighting for the survival of Equestria and the rest of the world. With his aid, Equestria was nearly saved.

This is their story. Their Legend.

(Story takes place in Equestria, but all the characters are human. Not Anthro, Human. Also, this is one story of four, two of which will be posted on Bronyparasite's side once ready.)

Story is cowritten with Brony Parasite.

Overlord is owned by whoever made it, MLP is owned by HASBRO, copyright bs copyright bs.