Jack came to Equestria.

Unfortunately for Jack he came to Equestria tens of thousands of feet above the ground.

Jack very promptly died in Equestria.

This is how falling works.

This is a fic based on the Time Loop Files, the format of which was first codified by Innortal on fanfiction.net.
Here's a brief guide.
The basic idea is, one character (the Anchor, usually the main character of a fictional setting) is looping back to the very first moments of their parent series every time either they die or some kind of time limit expires. They of course end up monumentally stir crazy given enough time.
Eventually others start to loop as well.
The reset is not always perfect. Sometimes a loop's history will be different to the "prime" loop, or canonical plot.
"Crossover" or "Fusion" loops also occur, randomly. These can involve the home loopers having a guest, or the anchor for one universe spending time in another, or replacements of one character by another.
Vacation Loops are where the Anchor (or others) decide/s "buck it" and lets off steam by doing whatever comes to mind. There's little or no attempt to maintain the original timeline.

In addition, and particularly more recently, it should be known that this story has a collaborative element to it - people may submit loop ideas or loops, ideally at the Spacebattles thread (a link to the current version of which is on the Trope page), and they may become included.

There's two page image options, thanks to Filraen - the current page image has been edited by the original creator from this work of theirs.. The other one is here:
http://hourglass-vectors.deviantart.com/art/MLP-Loops-466030169

When the time came, choices needed to be made.

Consequences be damned.

These are a series of short vignettes set in the Negotiationverse by Rated Ponystar. Windows into events briefly mentioned throughout the long journey of Equestria’s tumultuous time on planet Earth. From their encounter with the humans to the war that followed, bear witness to the choices made and the ripples that nearly destroyed Equestria.

You can read the original story here

Check out the Negotiation-Verse TvTropes page here.

(Featured 2/6/2021)

This story is a sequel to Sniffles

Having recovered from the lowly sabotage that had seen her briefly bedridden, The Queen and her thoroughly useless human servant can now proceed with vengeance, domination, victory and all other things that come naturally to her.

Events conspire to make this difficult.

A middle aged brony inexplicably replaces Chrysalis as a new changeling queen some decades before the fruition of a certain pony prophesy. Now the new queen must figure out how to manage a kingdom that has been in a slow, seemingly irreversible, decline for the past several thousand years.

To escape from Tartarus is nearly impossible, even for one of great magical power. When you've lost your powers and are little more than a withered old centaur, it's even harder. But Tirek has a plan, one that will draw in a creature from a world where life is cheap, hats are plentiful, and gravel is king. Will the Spy take the opportunity to enjoy a well-earned vacation in this new world, or will he see the population of friendly, innocent ponies as just a fresh selection of backs to stab? It could be both!

(Takes place before the beginning of Season 9.)