Spike Drake has recently graduated from boot camp and is now a full-fledged member of the Alliance military. For his first mission, he has to investigate attacks on far-off colonies in Citadel Space. To help him with this, he's been given a whole ship and a crew to command. And now they rush off to investigate the threat. Most think it may be Batarians, but this doesn't fit their usual MO. Something else is behind this.

From the world of Sonic The Hedgehog x My Little Pony

After defeating Eggman and restoring magic to Equestria, mysterious cracks open in the ground, releasing a dangerous gloom. Sonic the Hedgehog and Sunny Starscout then decide to investigate beneath the ruins of Canterlot Castle, unaware of the great danger they're about to face.

Alternate timeline created at some point after Sonic x Make Your Mark: Season 2

Inspired in The Legend of Zelda: Tears of the Kingdom and taking place in the world of Sonic The Hedgehog x My Little Pony: A New Generation, created by BronySonicFan.

Keep in mind, this story is not canon to whatever he's making so far. I just got his "blessing" to create this story and inspire it in his world.

Also, the Cover was made by him, so thanks for that!

You awake with a head-splitting migraine, the chilling wind singing in your ears. What little heat still remains slowly seeps out of your body as the crystalline pavement beneath you leeches onto you like a changeling. The City is deathly quiet, the atmosphere hauntingly similar to that of Sombra's tyrannical reign.

Memories flash through your mind's eye, and suddenly everything is clear. You are Captain of the Crystal Guard, and you will see to it that your people are safe.

Hoofsteps echo across the barren streets, a gaggle of guards galloping towards you, eyes wide, they stand at rapt attention.

There is much work to be done.

When the lost city returned to the face of the world, some were awed, others stupefied, and some... some were horrified.

And yet, all of them carried a single question: What happened to the Crystal Empire when it disappeared?

Arc I, Survival: Chapter 1—???

Getting pulled into a land of magical ponies wasn't something she had expected when waking up, especially while having been transformed into a semi-canon character!

Get ready, Equestria! Daybreaker's come to play!

There's a lot of Human-to-Nightmare Moon stories out there, and very few Human-to-Daybreaker stories as far as I know. Here's my take on a pegasister who gets transformed into edgy sun horse. Literally. Daybeaker has very sharp regalia.

I did not expect this to be featured. Thank you. (22/09/24)

Cover art by KrapinKaius

When Sam opened his eyes, ready to start his first morning as a college student, the last thing he expected was to find himself in an unfamiliar bedroom, in the equally unfamiliar form of Princess Celestia.

Now trapped in a body teeming with an enormous amount of power and an equally enormous set of responsibilities and worries, Sam needs to get to the bottom of things before Equestria's enemies realize Celestia is not herself and take the advantage.

Cover art is by Nauyaco

This story is a sequel to Immortal Affliction - Subject 1 - Rarity (MLP Infection AU)

- CLASSIFIED -

At the request of Dr. Quest Colton, the following data logs and observation notes have been compiled about the case study surrounding Subjects 3 and 4, and the highly infectious anomoly that now plagues ponies in the hundreds. It is the doctor's hope that these files will eventually help us find a cure before all of Equestria suffers this horrific end. Subjects 2 and 5 are also presenting troubling afflictions and will be recieving case studies of their own. Princess Twilight's sudden death could not have come at a worse time for us all.

(Thanks to Kittiesbythemillions for the amazing art!)
Here is a link to the Youtube adaptation of this story!
https://youtu.be/EzBV1jXuih8

Ocellus has a talk with her School’s guidance counselor about what’s been on her mind lately. Trixie turns out to be a lot more helpful than she’d expected.

This story is a sequel to Priority Shipping

This story takes place in an AU where Cadance and Shining Armor never got together. The world is otherwise unchanged.

The Crystal Empire is one of the most peaceful places to live in Equestria. The populace is thriving, ponies are happy, and crime is basically nonexistent.

Or so everypony thought.

Today, Anon's beaten and bruised body has been discovered in the upper levels of the Crystal Castle. His wife, Princess Cadance, would surely be devastated to find him in such a state with no explanation. Fearing for the health of the Crystal Heart, Twilight and Spike realize they only have one option: Discover the truth before Cadance gets home!

This story is a sequel to Rider on the Storm

For the briefest of moments, Anonymous wielded absolute power. He single-handedly destroyed the city of Canterlot, laid waste to Ponyville, decimated the Everfree Forest, and came dangerously close to annihilating the very Tree of Harmony itself. And he had an absolutely fantastic time doing it.
Right up until he lost.
Now he's stuck as a statue under the watch of the princesses he tried to subjugate, awaiting the time he'll be locked away forever, with the key no doubt thrown into a volcano. But from the very beginning, Anonymous suspected that the shenanigans of the good guys would cost him his victory at the last moment, and so he laid plans with his most loyal of subjects—all former soldiers of the Storm King he betrayed to obtain his power—to arrange for his release should the opportunity arise.
Unfortunately, he wasn't counting on the ponies calling in help from a faraway land. Enter the Four Princes of Zebrica, all wielding the same exact power that Anonymous did, and knowing a thing or two about how to put bad apples like him away for good. This is made even worse by the sorry state of Anonymous's storm beast forces, having hit hard times in the months since his defeat.
But not all is lost for the petrified supervillain. Because in a rare twist of luck, the Princes just so happen to unknowingly bring with them a zebra criminal with his own dirty little secret. A secret that not only secures Anonymous's release from captivity, but just might be the start of a horrifying new partnership, and with it, the birth of a new force of evil.
And of course, with all that going on, there's always the matter of the nascent Legion of Doom, plotting to bring their own age of darkness to Equestria as well...

Takes place during the final two seasons of Friendship Is Magic. With a few alterations here and there, because I HATE THE ANTI-FIM I HATE THE ANTI-FIM :bread:
Reading Rider on the Storm is strongly advised if you want any idea of what the hell is happening in this story.

Disease, Plagues, Pestilence. These words have been the reason for many kingdoms falling. These words choked the last of life in many cities. Now, another kingdom is doomed to fall. But, thankfully, their Princess has called the aid of a group of amazing ponies. Ponies who restored magic to their land. But, will they be able to cure the disease? Or, will they fail?