MLP/Undertale crossover.
Not a PWNY-verse story.

Long ago, the Monsters and Humans fought a great war. The Monsters lost, and were sealed in the Underground. It would take the power of seven human souls to break the barrier that kept them imprisoned. They only had six. And so the Monsters waited and hoped, praying that another human would find their way to the Underground. Some thought the seventh soul would give their King the strength to break the barrier. Some dreamed of a human who would be their friend, and save them all...or had nightmares of one who would bring back the war.

...but nobody came.

...but somepony did.

Eons after the war, with no way to tell how much time had passed above, a tiny blue filly with wings and horn fell into the underground, calling for her Mama. None knew the poor creature's nature or origins...but her soul was powerful with magic, even more so than a human soul.

None can know what will come...of this little 'Woona'.

Cover art by Sanyo21

Convinced she'll never find peace after the Anon-a-Miss incident, Sunset Shimmer decides to leave Canterlot High for good. When her friends go after her, they wind up getting lost and falling underground. And when Sunset falls in after them, she's left with a choice.

Escape to the surface and keep her sanity or risk losing herself in the darkness.

Crossover with Undertale. Comission from calinjc

Distraught after waking up from a nightmare, Marble Pie finds comfort from an unexpected pony.

No one knows where they came from. All they know is that they desired one thing: the taste of humans.

The beasts known as equines soon conquered most of the known world.

But humanity is known for its tenacity. Though clearly outmatched in both might and numbers people were able to hold out long enough to figure out ways to repel the hordes of monsters.

Equestria found its answer through power crystals placed in strategic places near the border. Powered up they provide a barrier that is capable of disintegrating any equine that gets too close.

The barrier has stood for generations and protected the lands of Equestria, but when and incident in the Everfree lets a band of monstrous equines into the heart of the country, a conspiracy long brewing begins to unfold.

Paladin Knight Vaughn of the Brotherhood of Steel from the Capital Wasteland was sent on a lone mission to investigate the strange occurrences around Fort Constantine, but when he arrives, a portal opens up and fell to the land of Equestria. How will he get back home? Will he ever return? That remains to be seen....

(Warning: The MLP characters are humanized but with some traits, such as pesasi having wings and the unicorns, while not having a horn, use magic with their hands. Also is from Fallout 3 but with the Fallout 4 style, such as the power armors actually being mech suits and such, and a few other types of crossovers.) NOW CANCELED FOR REVISIONED

They fell from the sky, only to have their landing broken by flowers carefully tended to by a crystal pony. The pony was scared away. They were scared stiff, but there was no running. The pony world they found themselves in was very real. Their choices would count against them...

I will try to keep it interesting and amusing. Think I did a good or bad job? Let me know! I love comments, loving or scathing, just speak.

Time after time, through chaos and through wars, Princess Celestia prevailed.

Of all the terrible forces she could have fallen to, Flim Flam Industry was the last one anypony had expected.

With thanks to gardrek for editing (3-6) and PinkieDP, Ice Star, and Odd_Sarge for prereading help.

A First person story of human emigrating to Equestria and the isolation of being in a strange new world. Until he first sets eyes on one Octavia Melody, he instantly feels his heart beg to be with her but after a performance one night it seems it may be in vain as she appears to be very close with another mare, not that there's anything wrong with that, its just that it may leave the young hapless romantic somewhat disheartened if they are only into each other, but all may no be lost.

The Volatile Hydreigon, an infamous Pokemon pirate crew lead by a man named Hadrain. When not exploring their world or investigating the many secrets is has to offer, the outlaws raid other sea vessels for supplies and money. But when the taking of a tourist ship goes from bad to worse, a strange force plucks the pirates from their world.

Now stranded on an island shrouded in mystery and no intact ship present, the crew must look to survive in their new home. But with these swashbucklers separated and their captain no longer the human he once was, can they reunite a brave the challenges this new world has to offer? Will their ambition to explore these new seas come to life, or will they fail to rebuild what they once had?

This is a side story to "A New World, A New Way" by Zeusdemigod131! This story is also inspired by the Mystery Dungeon series, exploring is magic my friends!

MLP:FIM is owned by Hasbro, Pokemon is owned by Nintendo! I own no rights to either series.

A shout out to Glitchhunter5000 for proof reading chapters 1&2!

[Rated T! May contain naughty words and cartoon violence :3]

Cover art is in the works...by that I mean I have nothing yet, so if you know of anyone let me know! Constructive criticism is appreciated and I hope you can tell me what you like and don't like about this story.

Fluttershy finds a tired humanoid in her back yard and takes the wounded creature to her home to help.

She has no idea why it has a gun, black mask like eyes, or such a fresh vibe, but she'd never leave a poor creature to suffer.

But she couldn't predict the attacking creatures that follow.