Changelings.

To most, they are the creatures that almost took Canterlot, shapeshifters able to feed on the emotions of those around them.
While this is true, it is not all there is to the story.

When the Great War began, an alliance was struck between Princesses Celestia and Luna, of Equestria, and Queen Chrysalis, of the Changelings.
The changelings, natural infiltrators since birth, would become spies for Equestria. In return, they would no longer be hunted, permitted to continue feeding as they had for countless years before their failed invasion, provided they not engage in acts harmful to the equine government or population at large.

Of course, that was simply the beginning. As the war began to escalate, Stable-Tec, the company responsible for the life-saving Stables, recieved a request from parties that would, as part of the contract, remain anonymous and unnamed.
They were asked to create something new, something that would allow both changelings and ponies to survive, and promote harmony between the races.

They were asked to create...

Project HIVE

'To whoever gets this message, we're in desperate need of help.'

'Equestria...Equestria is on the brink of being destroyed. Sombra, Tirek and many other villains are taking over our world. The Ambassadors of Harmony are nowhere to be found and Celestia and Luna...Faust, Celestia and Luna. I don't know who you are and I don't care, just as long as you can save us. And if you can't do that, then at the very least...'

'Avenge us.'

This story is a sequel to Emerald Gleaner: Viral Unicorn

[Prototype 2] X MLP:FiM crossover

Emerald Gleaner is now known to the world at large, seen as cruel and heartless at best for the slaughter of the Changelings, she has few true friends in the world indeed. And with every action she takes those few seem to shrink in number. Worse still in an honest effort to seek help Discord brings up an old savagery once thought buried and forgotten.

Can Emerald Gleaner overcome the stress and pressures of openly running a nation and being held accountable for her actions? Or will the darkness of her past rise up to consume both her and all that she holds dear?

NOTE:Thanks goes to Trondason and Nightmareknight for helping me with the planning and editing

Once, she'd had children. So strong, so brave, so many. Once, she'd been strong, and warm, and loving, and her Blessing spread like wildfire among the pitiful humans. Until she'd been betrayed. Killed. Imprisoned. Cursed.

Now she has returned, and nothing shall stop her. She has allies. She has, for the first time she can remember, friends. Her family will spread throughout this new world, and she will not fail. Elizabeth Greene will not repeat her past mistakes, she will be victorious in her quest.

After all, third time's the charm.

[/hr]

For antiquity, featured 6/1/2014 and 7/20/2014.

This story is a sequel to Mission: Improbable

A few weeks after the Spy returned from his extended stay in Equestria, the Medic found that he needed to have a few of those so-called "ponies" to... study. But with robots still attacking Mann Co., how can he find the time to acquire such a specimen?

By sending a scout ahead, of course.

It had been about a month since the changeling incident in Canterlot. Everypony is on edge, because stray changelings keep popping up here and there, trying to blend in with the population. Everyone worries that one of their closest friends, or even their family, could not be who they appear to be. But what happens when a pony isn't really that pony...

...but they're not a changeling, either?

While wandering about Manhattan, and attempting to escape Blackwatch, Alex Mercer is ripped from reality and thrown into Equestria, where he has to attempt to fit in and make a living for himself. But when a long lost evil arises, Alex will have to make a life-changing decision.

Prototype/MLP:FiM Crossover

Tags/Characters will be updated accordingly. Please go easy, this is one of my first fics.

Thomas Miller proudly wore the armor of the feared Firemen of Columbia. Battle hardened and devoutly loyal; nothing could prevent one of Comstock's most elite soldiers from completing his mission. Even if that mission was to apprehend the Prophet's daughter, Elizabeth. He had a goal that no force on heaven or earth could stop him from achieving.....except perhaps Elizabeth herself.....

What happens when a pyromaniac finds himself dropped in the middle of Equestria?

Bioshock: Infinite/MLP crossover.

What happens when the C.E.O of a company whose motto is 'We sell products and get in fights' appears in a world full of candy-colored ponies? We're going to find out the hard way in this one shot, action packed fic!

TF2 and MLP belong to their legal owners

Warning: Silliness inbound.

By order of the high lords of Terra themselves, a lone soldier from the Death Korps of Krieg has been sent to the planet Epona to wipe out its Xeno population. Starting with Equestria, the Korpsman has sworn not to leave the planet until he falls or completes his mission.

However, no Korpsman should fight without setting up a proper trench first, and so the Korpsman must dig...and dig...and dig.

Destroying Equestria is going to take a while.