Even as a princess, Twilight keeps finding new things.
Like a book filled with ancient spells, most of which have unknown purposes.

With this in mind, she decides to test one of the spells on herself, to see what it does.
But nothing happens.

Disappointed, she goes to bed, but when she wakes up, she's not in her bed, and her mind is full of questions:
Where is she? What is this odd device she has? Why does she have a tape deck with headphones? And what are those whirring noises she keeps hearing?

A one shot crossover with Receiver, inspired by the cover art.

Celestia hadn't expected to spend her afternoon doing anything more than filling out typical paperwork. When she's interrupted by a small ball being rolled around by an even smaller creature, she didn't imagine that this would derail her entire day.

The thing is, small problems can quickly turn into large ones.

Particularly when that problem is a katamari.

(Oneshotober 2014—A random Katamari crossover because Asilin has recently been trying to get 100% on Katamari Forever.)

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

After defeating the evil unicorn Sparklelord by tossing him through a portal, Dr. McNinja enters the rift in time and space himself in hopes of finding another unicorn to be his new motorcycle. However, instead of going to Radical Land like he hoped, everyone's favorite ninja doctor ends up in a small little country known as Equestria. Unfortunately, Sparklelord is in Equestria as well, with intentions to wipe it and its inhabitants off the map. It’s up to Dr. McNinja, his sidekick Gordito, and the Elements of Harmony to save the day.

(Special thanks to Totallynotabrony for his mad editing skills and another special thanks to my pega-sister/real sister for making the cover art. Cover art background by Jamey4 )

Waking up with a hole in the head might seem like a bad way to start your life, but what if you deserved it?

"Every pony like me should be shot in the head at least once."

When he discovers the entire wasteland hates him, the amnesiac Ripple, once Two-Kick Rip the raider warlord, sees his wounds in a very new light. On a path that's half vengeance and half bid to redeem himself, he must rid the wasteland of his old gang and another, much more sinister foe.

----

The cancelled sequel is over at Fallout Equestria: Echoes of Chaos.
This fanfiction is based on Fallout Equestria by Kkat; a familiarity with the source material may aid your enjoyment.

The Vinyl Scratch is a radio show known for providing entertainment to the masses. It's not however known to be a murder scene. A technician with a mysterious past is hung from the radio tower and Private is going to find out why. The mysterious Octavia joins him in this venture along with her co-host Vinyl Scratch herself. Private also learns that this isn't the first death in this manner. A secret reaching back decades will present itself as the danger rises. Private will need all his wit and instinct to solve this age old mystery, but can his new ally Octavia be trusted?

Who is this mysterious cello player?

(References to Les Mis���©rables allow for the crossover tag)

Equestria is dead. The sun and moon have stopped, and the planet is in ruins. The xenos that built the civilization are gone, their works in ruins. Investigating the planet, Interrogator Kylara makes a surprising discovery, one that might hold the key to what happened to this once-fair land - and what might be done to stop it. A Warhammer 40k crossover.

Now featured on Canterlot's Finest and Equestria Daily

Also now featured on TV Tropes.

Ravnica. City of guilds. Sprawling ecumenopolis. The lovechild of Ankh-Morpork and Coruscant. If Dominaria is the heart of the Multiverse, then Ravnica is its liver, a place with a thousand purposes, none of them particularly appetizing.

The plane is already home to humans, goblins, vedalken, elves, merfolk, and more besides. Who's to say ponies weren't there the whole time? The ponies certainly aren't. Versatile as humans, colorful as rainbows, and innocent as any other Ravnican, they've found their way into each and every guild. But even when the guilds would separate them into distinct factions, the magic of friendship connects them. This is the story of those connections and how they encircle Ravnica as much as any magical path across the plane.

(Confused? Curious? Check out the Planeswalker's Guide to Ravnica and Ravnican Race Relations for further details.)

The Ponyspawn have invaded Equestria, and it is up to the newest addition to the Grey Wardens, Twilight Sparkle, to find the means to drive them back! With her friends and allies at her side, can Twilight defeat the evil tide before all of Equestria is devoured?

The Sequel, Pony Age: Catalyst, is available.

A Metroid Crossover

A meteor, resistant to magical manipulation, crashes in Equestria, Planet Equis, and soon spreads an unknown poison throughout the land. Containment is all but failing and the Princesses have little power to stop the spread of the Great Poison. The Elements of Harmony are of little use as no knowledge exists of this threat that consumes all life. Help comes from a certain Hunter, clad in metal.

Samus Aran will not only fight for her life as always, but her own sanity as well as these ponies that she begrudgingly starts seeing as allies. New horrors and abilities await her as a reason to fight slowly festers within her, possibly unlocking something she had been denied for so long: Friendship.

Notes and Resources:

This takes place after Echoes. The events of Corruption will have not happened yet. In terms of MLP, consider everything up to and including the Crystal Empire. Princess Twilight does not exist here, etc. The official Metroid Timeline can be found here.

As well, this story references the manga in many places. Reading of it is not required and I try my best to explain the context, but if you're interested, both volumes can be found here.

EDIT: This story was written over two and a half years, beginning in 2013. You'll probably notice the difference in writing as the chapters progress.