A blue box has fallen out of the sky, and crashed right into Twilight's Library! A strange brown stallion, calling himself the Doctor stumbles out. Soon after, strange stone Pegasus are everywhere, one of resident weather ponies has vanished, and Twilight is tossed in the middle! The Doctor and Twilight have to find out what's going on, before it's too late!

The Doctor, the last surving Timelord of Gallopfrey, travels through time and space, along with his companions from Equestria.

The Missing Cutie Marks: The Doctor is in, making his debut in Equestria! He soon finds that not all is well, however, when ponies’ cutie marks mysteriously go missing… The "disease" is spreading, and the Doctor must find out what's causing it with the help of his new friend, Twilight Sparkle.

A cold, calculating assassin is teleported to the magical land of Equestria due to the unstable powers of the siren, Lilith. Will our awkward, haiku-obsessed hero be able to adapt to the Magic of Friendship, or will he simply end up murdering everything in sight like he's used to? Let's hope its the former.
Only one thing is truly known, this was a challenge he was NOT prepared for!

Borderlands/MLP crossover. Challenge Accepted.

Cover art by steptrool on DeviantArt

Following the events of "Traveler," Twilight goes to Canterlot to deliver her report on what has transpired since the Doctor's arrival in Ponyville directly to Princess Celestia. She leaves the Doctor in Spike's capable claws, asking him to show Equestria's newest arrival around town while the TARDIS rests and repairs itself from the trials of the previous day.

Although at first distraught at being stranded in the seemingly serene township of Ponyville, the Doctor finds himself reexamining his initial assumptions about the ponies, the land of Equestria, and his compulsive need to travel when he is confronted with the miraculous, impossible events surrounding Ponyville's resident party mare: Pinkie Pie.

The Pinkie Conundrum is the first in a series of continuity branching off from the foundations established by the Doctor Whooves stories: Number 12 and Traveler by the very talented Squeak-anon and all references to these two works of fanfiction is credited to him. Also, while this is a separate continuity from any future works by Squeak-anon, it is strongly recommended to read these two fictions before reading Pinkie Conundrum.

This work has been developed and published with permission and blessing of Squeak-anon, my original inspiration.
Doctor Whooves Intro posted on YouTube by: Cshep99
Cover art provided by FoxInShadow from deviantart.com
Proofreader, Editor and Number One Assistant: 2dextreem

If you enjoy this story as well as my other works, please leave a comment. Constructive critique is encouraged as well as any questions or remarks that may occur.

~ This is a side story to Luna Plays...

It has been months since Princess Luna has discovered video games, and it has been months since she found somepony worthy enough to challenge her; to meet her skills equally in virtual combat. But alas, she has beaten thousands of millions of players around the world, and not one of them came even close to her score. Shooters: she would take them down like a firing squad. Platforming: she already jumped her way to victory in ten seconds flat. Puzzles: outsmarted those poor gamers. Casual: too easy. Role-Playing Games: she's the highest level.

To Luna, multiplayer in video gaming was getting a tad bit boring, and she was desperately looking for somepony that could match her prowess. So you can imagine the joy of adrenaline she received when she met Button's mom online.
Author's Notes
~ Editors: OmniBrony and ultra1437
~ TLATopHat was the one who drew the cover art. I just asked him for permission to use it. Make sure to follow him on Deviant Art and/or Tumblr if you have those.
- His Deviant Art page.
- His Tumblr page
- His Ask Pony Tumblrs: Ask Razzleberry Pie, Sketchbook Twilight, Equestria Declassified, and Ask Majesty!
~ Rated Teen for Strong Language.

EDIT: First and probably only ever, added Author's Notes to address the frequent "Were means man" issue. Please read them before commenting.

"Fluttershy gets bitten by a werewolf from the Everfree Forest, but when a side effect of the changes limits her inhibitions, she starts to wonder if the cure is such a good idea. Even if she does start to behave a little 'differently' otherwise..."

A one-shot story in the spirit and style of an episode of the show itself.

--

Cover image by ~Dragon-Fangx
(With one small edit to fit details of the story)

I've seen this idea done before, but as a fan of Sonic and MLP: FiM, I wanted to give it a go myself.

This, basically, is the story of Sonic Generations, but crossed over with the MLP:FiM universe, with Spike and the Main Six taking the place of Classic Sonic and Classic Tails with other MLP characters also appearing (most aren't listed to prevent spoilers). Except for Green Hill, there will be different areas explored, as well as pony rivals and different era bosses. So while it will have its similarities to the console and 3DS versions of the actual game, it will definitely have its differences too.

Also, in case anyone was wondering, there will NOT be any shipping in this story. At the very least, no crossover shippings. No SonicxRD, TailsxTwilight, TailsxFluttershy, or anything like that. If there is any shipping at all, it will only be between characters from the same universe. And the only humans in this story are Dr. Eggman and the ones that appear in the "Sonic Unleashed" level.

A big thanks goes to bvge on Deviantart for creating the new logo on the cover art. It's a vast improvement over the old cover art.

The TV Tropes page can be found here.

NOTE: Due to the length of many of the chapters in this story, most of them have been broken up into smaller parts of roughly 10,000 words or less to make the story easier to read.

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.

After Big Macintosh builds a play castle for the Cutie Mark Crusaders, the excited fillies spend a great deal of time waging epic battles against and alongside each other, besieging and defending the castle, saving princesses, deposing warlords and tyrants, and often suffering melodramatic deaths while they're at it. Often they find themselves aided by and fighting against various monsters hailing from Vaati's palace that want in on the fun. This is a record of all their various adventures.

DISCLAIMER: The author henceforth takes no responsibility for any exploding hearts, cuteness overloads, or diabetic seizures that may be suffered by reading these.

AUTHOR'S NOTE: This was originally going to just be a oneshot, but other people have persuaded me to add more to it, thus this shall be a collection of oneshots based around the games the CMC and various monsters play in this castle. This takes place in the Equestrian Wind Mage continuity.

Nightmare Moon always had a backup plan if she ever were defeated; she would slowly regenerate herself and regain her power. The problem is she never expected to come back as a defenseless filly, or to return directly in front of the princesses. As punishment for her past crimes, Luna has given her a sentence far worse than being sent to the moon again. Nightmare Moon must move in with Twilight and report to Luna on the magic of friendship. She's not very happy about it.

By the way I am not trying to rip off Past Sins in any way. Nyx is NOT in this story, this will go in a completely different direction.