Darkness and corruption plagues Equestria. Gangs have sprung up overnight, violence has become the solution to petty disputes. The authorities are powerless to stop the spread of evil. But a hero will rise...

Equestria needs a hero. A hero that is strong, brave, charismatic, and able to penetrate the inner workings of the twisted.

Equestria needs a saint...

Instead it got a drunken madman.

Authors Note: A humans in Equestria story and crossover. My first story so feedback/criticism is highly encouraged. Don't go easy, if I'm going to continue this I need to know how to make it worth your time and my own.
Cover image source
Now with pre-reader DemonRykuKyuubi! Typos should be less frequent.

(Left 4 Dead crossover) Francis, being the idiot that he is, messes around with a computer, and soon finds himself, Zoey, and Louis in a strange land full of ponies, while Fluttershy, Rainbow Dash, and Applejack get transported into the human world, to find Bill and a city full of zombies.

Rarity's boutique is failing, but when Rainbow bursts through her door with a half dead unicorn stallion bleeding out in her arms, Rarity discovers a new type of magic she had never known existed. After being offered a somewhat sketchy job by the unicorn, she decides to take it, someones gotta pay the bills.

Luna knows everything about Twilight Sparkle, From her childhood up to everything she has done in the year since Twilight freed Luna, but why does she know these things?

On the other hand Twilight is going crazy turning against her friends as though something is eating at her and shes powerless to stop it.

For almost a thousand years, the immortal Nightmare Moon has reigned over Equestria as Empress. To the average pony, Nightmare Moon is an overarching enigma whose rule is absolute and whose wrath is terrible. But to Twilight Sparkle, who as an orphan has never known her parents, the Empress is something else entirely. When the young unicorn is brought under the royal wing as an apprentice, she learns a great deal more about the supposed tyrant than she ever knew. But as Twilight is introduced to life with her new mentor, she is thrust into a world of political intrigue, conspiracies and secrets. Secrets that were never meant to be revealed. As allies and enemies plot against the very peace of the nation, will Twilight fall prey to the perils of her new position? Or will she prosper and find in Nightmare Moon the mother she never had?

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My eternal gratitude to my editor, LordOfTheWrongs, without whom Night's Favoured Child would not be the story it is today.

Now with added TVtropes!

With the events of the Molestia Night behind them, Luna's mind wanders around the topic. It is only a couple days later that she remembers some very crucial details about her stay on the moon. With the night young once more and her passion heavy, she seeks answers to the questions that her older sister brought up, as well as to her own. The way she does it, however, turns out to be very... Naaaaughtyyyyy...

-The events that take place in this story kick off directly after the events in the Epilogue of Princess Molestia.

Under the ocean so blue.

Years have gone by, and Twilight Sparkle still lived with the haunting memories of that horrid night. She knew she had to get away, even if it meant leaving everypony behind. She was better off escaping.. right? She reached over and grabbed a photograph of two unicorn ponies with a small purple filly in-between them..

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.

Josh Schwartz is a normal human with a normal life. He has his computer, his TV, his pet cat, his love of sports, the works. Naturally, he doesn't approve or enjoy girly things that are obviously made for girls. However, when a mysterious and unexplainable series of events takes place, he finds himself in Equestria, a world with no humans and only ponies...well, mostly ponies. How will this sarcastic human boy adapt to this new world? And how will its residents take to their new visitor?

War is approaching Equestria and the Celestial sisters' ponydom is doomed to fall. So Luna and Celestia must travel to the capital of the ponysty ruled by the dark sovereign empress Nightmare Moon, in an attempt to avoid a war that they can never hope to survive. But upon their arrival the empress forces them into a dynastic marriage, or else she'll destroy their ponydom and enslave all of their subjects.