It is the year 2038, and the Earth is slowly being consumed by a space-borne monstrosity dubbed the Black Tide, which is using nanotechnology to remake the planet into something hideously alien.

Erin Olsen works for Project Harmonics, humanity's last-ditch effort to find a new world before the Tide can wipe them out. But when that world is found, and it turns out to be occupied, Erin will need to find the courage to face the unknown in order to save the inhabitants of both worlds.

(Many thanks to Easteu for the fantastic cover image for this story!)

Now with its own TV Tropes page

There is now a follow-up to this story: Sunflower - Side Projects
Sequel: Project Sunflower: Harmony

Due to the recent animal activity from the Everfree Forest, Princess Celestia has sent an agent from The Academy. What will happen when a certain librarian starts to fall for the crimson haired warrior? What secret is he keeping from the town folk of Ponyville? Join Crimson Storm on a journey that will shake the foundation of the world.

All ponies are humanized. Pegasi still have wings and Unicorn's cast magic with their hands.

Inspired by Gentlemanj's amazing series. 'The Journey of Graves.' and RoosterTeeth's RWBY

Curious about Five Score? Come check out the story that inspired dozens of side fics and been enjoyed by bronies for years!

Original Synopsis Even though MLP:FiM ended a few years ago, my friends and I still loved the show. Stories, merch, fan art, I loved it all. Things started to get a weird though when I found myself with a cutie mark appearing on my leg. Humans aren't supposed to get cutie marks, so where the heck did this come from? And what's going on with my hair?

More Detailed Synopsis: Five Score is an action/adventure story of the human-to-pony transformation genre. It’s unique from most transformation stories because the transformation itself is not really the point of the story. It’s the inciting incident that raises countless challenges that must be resolved. They are on earth, as a pony, and need to fix this before things get worse. Think about yourself in their hooves for a moment. How are you supposed to change back or even figure out what caused it in the first place? How are you supposed to get food or do anything on Earth without being spotted by humans? If you are spotted or captured, how would you escape? How does one even open a door with hooves!? Did anyone else on Earth get changed as well? How could you get the word out to the other ponies who are themselves hiding? Is it worth risking travel across the country to reach the others? Which of your friends would you trust to help you deal with this? And why did you turn into this particular pony? Surely it wasn’t random chance, right?

These challenges are the tip of the iceberg in this full length adventure novel There’s a lot of humor, many tense scenes, and hell maybe even a war.

But don’t just take it from me, Look what random people on the internet are saying about Five Score, Divided by Four

One of the best things to come out of this fandom.
-IrraticDrop

This made me change how I think about fictional worlds, imagination, and creativity
-relgukxilef

The only story on FimFiction to have me literally shaking with excitement.
-jeramiahsental

SWEET FILLY LUNA I AM FLIPPING MY SHIT RIGHT NOW
-Shadow Reaper

Five Score master editor:
Scrub

Five Score proofreaders:
Comrade Sparkle
Rustle my Jimmies

A freak lightning storm, strange lights, and an unassuming, yet mysterious stone obelisk. What do these things have to do with an average college student from North Tonawanda? At first, nothing. But when nineteen year-old Connor lets his curiosity get the better of him and lands in the center of a cosmic coincidence, he probably should have left well enough alone.

Now he finds himself stranded in an impossible world where magic is real, and "normal" takes on a whole new meaning. A world populated by sentient creatures calling themselves "ponies." A stranger in a strange land, Connor's yearning for answers and a way back to Earth will try both his patience and his sanity in the days following his arrival, even with the support of his new equine friends. But as he witnesses his life slowly spiral out of control, he will call into question his definition of home, humanity, destiny, and what it means to truly belong.

Rated Teen just in case for occasional swearing. This story takes place shortly after the end of Season 2, and the main character is from an Earth where MLP never existed (in order to preserve proper characterization). Or just assume he's never heard of it, that works too.

The title is not an Evangelion reference, I was just inspired by the wording scheme.