After a long day of work, Ditzy (Derpy) Doo wakes in the night to find that she is in the middle of the zombie apocalypse. Worst of all, the zombies arent even ponies! Instead, they are some strange type of two-legged creatures with hands. fortunately for her, she is found by four of these creatures that dont seem infected. But can they help her escape this nightmare? For that matter, can any of them escape the hell-hole of a city they find themselves in?

update: the sequel is out! check it out, if you'd like: Left 4 Derpy 2

(proofread by Flutterguy_6996. Title image photoshopped by myself)
(Dramatic reading by Applesaws. links to the readings can be found in the respective chapter's author's notes.)

"Whatever you do, don't touch anything, don't look at anything, don't breathe on anything!"

During his exploration of the Freelancer base, Caboose stumbles upon a lab of experimental Slipspace technology and does what he does best: pushes buttons. The next thing he knows, he's in a strange place talking to a tiny yellow filly and he couldn't be happier!

Inspired by DarkWing's My Little Caboose: Blue is Magic! If you think this is good, you might like My Little Caboose even more!

Spartans never die, they're just missing in action. This has never been more true for Jorge-052 as, after activating the slipspace drive that was supposed to kill him, he is instead flung into a strange world where war is but a distant memory. Will the aging soldier be able to adapt to this new peaceful planet? Or will his only salvation be found in finding a way back to his own chaotic universe?

(It's my first time, so be gentle)
Now featuring a TVTropes page by Sabo88

==Originally written spring 2011== Equestria Daily Post==
GLaDOS is free of Chell, free to continue testing, when she discovers a portal gun Wheatley tried to repair with duct tape. When the portal gun catastrophically fails, the enrichment center, GLaDOS, and Chell are literally dropped in the middle of Equestria. The mute test subject soon finds the world of ponies far more welcoming than the human world. But GLaDOS sees possibilities. Let the testing begin... for science.

Applejack finds a strange visitor in her apple orchard one day, with even stranger stories to tell...
MLP/L4D2 crossover. My first story on FiMfiction.net! May add more tags as story progresses.
Credit for the image goes to brokencreation on DeviantArt.

In the midst of the hunt for the Master Control Nanites, Rex discovers that Black Knight has been working on a secret project involving alternate universes. What has Black Knight found that warrants such a change in priorities, and what impact will it have on the war? The answer will decide the future of two worlds...

This story may contain spoilers regarding Generator Rex, up to and including the season 3 finale. A basic knowledge of the show helps, but the relevant points are explained for those who haven't seen it before.

When two events collide through the fabric of space and time, Coop, a hotshot gamer whose skills with a controller are only match by his hunger, along with his giant robot car named Megas, wind up in a land of colorful talking ponies.

To make matters worse, he's been turned into one of them.
He'll have to learn how to handle the wheel with hooves quickly. Because even in Equestria there's plenty of trouble he can get into. Will this snack munching, video gaming, giant robot piloting force of destruction be able to cope?

With Twilight Sparkle, Applejack, Rainbow Dash, Rarity, Pinkie Pie and Fluttershy charged with watching over him, let's hope Celestia made the right choice.

Who knows? Maybe things'll turn out fine. After all, mares dig giant robots...right?