Sequel: Left Behind: Sunny Disposition
Apparently it was scouted and is on EqD too

Nightmare Moon was meant to be released after a thousand years. A momentous occasion for her but terrifying for all the ponies on her day of freedom. She would get revenge on her sister and cover the world in darkness and shape everything to fit it.

That was the plan, at least. Instead, something went awry with the spell and she wasn't released when she was supposed to be. The mare-in-the-moon is brought into a world with stagnated technology, giant cities, and no sign of her sister or any of the other immortals. In fact, ponies don't seem terrified of her at all, and the stay within the core of her powers infused and changed the alicorn's body drastically.

The alicorn had no obstacles left! But...she was also a relic of the past. A past everyone seemed to have forgotten. A past she could no longer look upon.

Artwork by ElkaArt. Link in source.
Big thanks to Kryostase for helping spot errors I've missed.

Dusk Shine is tired. He's scarred, battle-hardened, and young, but more than any of those, just tired.

Nopony deserves to suffer through what he has endured, much less at such a young age, but what happens when he finds his place in the canon Equestria? Where sunshines and rainbows are everywhere.

Will this new world heal him or will the striking similarities to his once-happy world break the stallion under the weight of what he's lost?

Read on to find out.

RGRE, will be obvious as each chapter progresses

Edited by Sober. Cool dude, check him out.

Cover art made by Mix-up This guy, is great. Awesome drawings, go check him out.

The end was nigh, I knew that much. Within three years' time, my entire family would be dead. If I did manage to survive, I'd no doubt be hunted down by the government and the citizenry as well. Everything had gone to shit so quickly. War, famine, invasion, and there was nothing I could do about it. I just wanted to disappear from the planet, live in a place where I wasn't constantly under threat.

I got my wish, I suppose.

Discord is wanting to settle down with Fluttershy and stay with her full time, but as the god of Chaos he'll cease to be if he acts to normal and it becomes clear that no normal creature can stand chaos 24/7 and he seeks a replacement, he ends up landing on Spike for the job.
Spike is missing all the time he and Twilight use to spend together, even if it was mostly work, and ends up using his powers so he can earn her respect as an equal instead of being seen as a lowly assistant.
While planning his first move he ends up enlisting the Cutie Mark Crusaders aid so none of the other mane 6 feel left out of the fun.
Featured (Apparently) - 8,28,21 - 11,19,22 - 02,19,23
- This Story takes place after Season 8 but before Season 9 -

Rainbow is the ruler of Cloudsdale,as well as the Princess of Loyalty,and to her Princess Luna is her real mother..

But what happens when the Wonderbolts get invited by Celestia to stay a few nights ,what will happen to Dash when she meets Soarin

Ruling all of Equestria for countless years without her friends was hard enough as is but losing Spike was almost too much for the Princess of Friendship to take so an old unlikely friend gives her the chance to go back in time and see her old friends again, but not without a few annoying additions

I don't know what I am, but I know where I am. Equestria, magical cartoon utopia. A place that's basically a dream come true.

So why is the only thing I care about finding another drink?

Art by ExoticEon

Featured June 4, 2021. Thanks y'all!
Again on June 17!
Also August 17
And August 26
And October 17
And so on and so forth.

Amaryllis, an infiltrator for Chrysalis' hive, searches Canterlot for her missing queen, but during her nightly visit to the city she is forced to flee and heads into the Everfree Forest, where she finds an unusual cave, one that ends up changing her fate and knocks her out in process. When she wakes up she finds herself in an unknown world, in a snowy land that rests at the northern end of the continent, in a body that isn't what she's used to having. From there she must relearn the skills of an infiltrator, discover how the people of this new world interact with each other, and either figure out how to get back to her home world, or get used to living in her new environment and killing people to make some gold.

(Skyrim/MLP Crossover)
(Part of the Demon War story series, but reading the others isn't required)
(Warning: involves Daedric Prince induced cow transformations and unusual theories to explain lore)

The boy who lived, Harry Potter, is having a normal night, sleeping in his cupboard, when he is awoken by screams from above him. The boy falls through a mirror and finds himself in a ruined wasteland. Two years later, Scribe Harry, and a few of his comrades, receive letters to Hogwarts...

Reuploaded! Now with better cover art, and a much better first chapter, if I do say so myself!

(Ever since I read "If Wishes Were Ponies" I wanted to try my hand at the classic "Harry Potter crossover" fic, this will be in much the same style, but a bit different, as it's now a Fallout Equestria crossover as well.)

Zen, human-turned-Lucario, has lived among the residents of Equestria for nearly two years. He has fought many battles and has uncovered many mysteries alongside Yui. Now, Princess Celestia shares with them and two others a most unsettling discovery.

Off the coast of Equestria, a great source of tremors threatens to tear the continent apart. To save Equestria from its impending chaos, Zen, Yui, Topaz, and the human hunter, Ren, set sail to face this threat for the fate of Equestria.

One question remains; Who will prevail, Monster or Hunter?

A/N: There is no tag on for 'Pokemon' as it isn't the central focus, just know that the main character is a Lucario but that is all the ties to Pokemon he has. Enjoy!