One day, Earth. The next, everyone is gone and I'm a pony. What the heck is going on?
Humanity's space exploration ultimately took the form of billions of identical probes, capable of building anything (including astronauts themselves) upon arrival at their destinations. One lands in Equestria. Things go downhill from there.
Tracy needed somewhere to stay, how was he supposed to know that it was in another universe? Now he'll somehow have to hold down a job on Earth while living as a pony in Equestria. It's either that, or say goodbye to being human.
When a remarkable spell summons a human mind into the body of a unicorn filly, Princess Twilight Sparkle does the only thing she can think of: Take on an apprentice.
After discovering a strange animal abandoned in the forest, Kyle is in for far more than he could've bargained for.
Some ponies think Diamond Dogs hoard gemstones for the same reasons ponies do. Others think they eat them, like dragons. If ponies knew the truth, they might not be so eager to rob them of their subterranean treasure. If only they knew.
Four months after the end of human civilization, six ponies come together to rebuild. They learn that the apocalypse has not made friendship any easier.
Theo knew arctic research was dangerous. He didn't know those dangers involved getting sucked into other worlds, changing into a bird, and having to somehow find a way home. Turns out it was more dangerous than he thought.
Celestia and Luna were created by aliens to rule Equestria in the name of their creators. They decided not to. Everything worked out okay, until their creators returned to collect their due. That's when Twilight Sparkle got involved...
Amie was prepared for a difficult season as a camp counselor. She wasn't prepared for her entire summer camp vanishing from Earth, and reappearing in a strange new world. Now they're bugs, in a world that seems to hate them. Survival not guaranteed.
When Celestia banished Nightmare Moon, she didn't go alone, but with her loyal army. Now they're trapped in an alien environment, with tensions high and the air running out. If they don't work together, their princess will soon be alone after all.
Sunset Shimmer has always known that magic was real. After discovering the portal hidden outside Canterlot High, she leaves her life behind to go inside and prove it. Equestria will never be the same.
Everypony has their secrets. Twilight never imagined those her own best friends might be hiding from her, until one of her new duties as a princess brought her stumbling headlong into a side of Equestria she never even knew existed.
A terrorist attack on a suburban high school has unexpected consequences. Instead of hurting anyone, every person inside is changed into a pony.
Human civilization ended on May 23, 2015, when everyone on earth became a pony. In the years and centuries that followed, what would humanity become?