A TF2 crossover? Seriously, how many of these have shown up? Oh well, time for my effort.

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Equestria and Aquileon, the griffon's realm, have a long-standing agreement: Every five years, teams from each country will face each other in a competition to garner fame and glory for their home and for themselves. This year, the griffons have chosen war games, confident that they can steamroll the peace-loving Equestrians.
Princess Luna, determined to stop this from happening, pulls nine great warriors from their world to help Equestria and to train their representatives. But was this a good idea?

This is kinda... experimental. If this garners enough interest, then I shall continue it. Otherwise, I shall let it die quietly.
Also, if somepony can give me the source of the picture I'm using, I'd appreciate that immensely.

10 ponies are whisked away to play a game of mystery, intrigue and cunning: The Mole!

In The Mole, 10 contestants face challenges to earn bits for the team...and possibly themselves. But there is a twist. One pony does not belong. This pony is The Mole! They work undercover to try and ensure the team gets the least amount of bits possible in the series of mental and physical challenges. Contestants have journals t keep track of who they think is The Mole and at the end of each episode, somepony has to be eliminated...And of course, through all of this, Derpy Hooves & Carrot Top will be providing hilarious commentary.

So who's The Mole? Can you discover who it is? Only one way to find out!
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Anything in italics is somepony's thoughts in the diary room, or their written thoughts in their journal.

There will be small hints throughout the story that will hint to the Mole's true identity. See if you can spoil them all! And, if you do work out the moles true identity, please do not leave it in the comments, as it might ruin it for other people. Feel free to message me with your ideas if you like, I like seeing what people might think :3

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!

The star system Omega Centauri was just another oddity on a map to scientists in the not too distant future. However when they found the star was orbiting an earth-sized, earth-like planet instead of a black hole as its motion had suggested, a mission was scrambled to investigate this most unusual of celestial behaviors.

Hamstrung by politics, and nearly crippled before it began, the 'Lone Ranger' mission was reduced to just one crew member and left to his own devices.

These are the logs of Arrow 18 and its lone commander. This information is classified TOP SECRET by the Global Space Agency.

Do NOT tell the princess.

After the disastrous invasion of Canterlot, an injured changeling wakes up near a small cottage and is quickly discovered by two of the last ponies she ever wanted to see. Now, with the help of her new "friends," she has to remain undetected in a town high on changeling hysteria that would not hesitate to throw her in the Canterlot dungeons should her true nature be revealed.

Simple, right?

Too bad she couldn't have picked a worse form to stay inconspicuous...

Many thanks to ZuTheSkunk for the cover image!

Just before leaving for her honeymoon, the newly-married Princess Cadance finds her old diary in her clothing dresser, filled with memories long forgotten, where she then recounts on those happy days as Twilight Sparkle's foalsitter. (Featured on EqD!)

Image credit goes to Bufko

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

Princess Cadence is a lonely filly who has been shielded and protected all her life as a princess and member of the dwindling race of Sacred Alicorns. She longs for a friend her age to play with, and as a young teen she is sent to stay in Canterlot where her Aunt Celestia would personally mentor her in developing her magic. There she hopes to finally have the freedom she longs for and find somepony to be her friend. Instead, she is asked to foal sit for one of her aunt's royal adviser's fillies who may just be as lonely and reclusive as she.

This is the story of how Princess Cadence learns that the ability to give love cannot be complete without finding love for yourself, and sometimes it is found when you least expect it.

Metal 0-1 was thought KIA after the mission "Down the Rabbit Hole", sacrificing themselves to get the Russian president and their friends to safety. After awakening in a strange land, Sandman, Truck, and Grinch must piece together what happened after the mission, how they escaped alive, and how they are ever going to figure out a way back home.

*Note*
This is my first ever attempt at writing something along these lines, so overall it might not be very good.The idea just happened to pop into my head one day. I hope you all enjoy it, and I would appreciate it if you guys could give me some constructive criticism. Thanks!

God takes back the rapture and gives everyone a chance to say goodbye to their new found loves. Before Lance is taken back, Twilight jumps on him, sending her back with him to earth. Can they reunite all of the bronies? What adventures and events will they encounter along the way. Time for some adventure!
A side story for my popular story, 'Living the Dream' I recommend reading that one first.