Queen Chrysalis tells her last child a story as she lays on her deathbed.

Queen Chrysalis has spent years in hiding. She has been very careful to avoid being caught, but her time spent alone and in constant fear has worn away her sanity.

Cover art is by awk44.

It's been a rough day for Twilight Sparkle. She was awoken in the middle of the night to save the town, had a chance to study an alien artifact ripped out from under her, and is now stuck with Applejack, Fluttershy, and her arch-nemesis Queen Chrysalis in some alien fighting tournament with a bunch of... things she doesn't even want to try and start describing without a cup of coffee and some asprin!

Indeed, Twilight and her friends have been summoned to join the latest Smash Brothers tournament! And as they explore the mysterious 'Smashworld' and meet new, colorful characters, they will be pitted head to head against new friends and enemies as well as each other! Can their friendships survive being forced to fight one another? Why are all the other 'smashers' so on edge? And what's with the bizarre being that purports to be the creator of this world, "the Master Hand?"

Only one thing is for sure. It's going to be a doozy.

Princess Celestia: Goddess of the Sun, ruler of Equestria, beloved Princess of ponies. She is loved by all, and loves all in return. A calm and wise ruler, she sits on the throne in Canterlot, maintaining peace and harmony throughout the land.

What most don't know is that her past is much darker: She was once a commander of legions, a warrior and scientist of unmatched skill. Thousands of monsters and abominations fell to her forces, slain in the name of an old leader, one entombed within his own throne. Free of her old form, free of the powers of Chaos, she was cast into a new realm, in a new form, with a new lease on life.

She is the God Emperor, Eternal Ruler of Equestria and Lord of the Imperium of Man.

Has a TvTropes Page. Please contribute.

Comments contain spoilers. YOU HAVE BEEN WARNED!!!

This story is a sequel to The God Empress of Ponykind

A message rings through the Warp: "The Game is broken, only Destruction remains". Celestia hears it, fearing for the lives of her former subjects and those of her beloved ponies. Unwilling to sit idle, she has chosen a dangerous path: return to the Imperium, take up the mantle of Emperor of Mankind, defeat the coming storm, and save Mankind once and for all.

With Twilight Sparkle to aid her, Celestia faces new challenges and new enemies. Her forces are scattered, her people assaulted, and the enemies of Man grow stronger with each passing day.

The Time of Heroes is gone. Now comes the Time of Ending.

Sequel to God Empress of Ponykind. Reading that first is strongly recommended.
Rated T for 40K related violence, but that might change at some point.
Comments contain spoilers. You have been warned.

Sombra, the dreaded King of Darkness, was defeated and his body shattered, but his dark soul survived the return of the Crystal Empire and went into hiding. Some time later it found a path between worlds, a mirror portal, and arrived in a place called Hueco Mundo, where it gained a new body to start a new life. In the process Sombra loses his memories and becomes a shell of his former self, searching for something that he knows that he lost while having no idea where to find what he was missing.

Along the way he somehow finds his way to Karakura Town, into the hands of Kisuke Urahara, and learns more about his new body than he could have learned on his own, before coming into contact with Ichigo Kurosaki and his small group of friends. From there he starts an epic journey to help them save another friend from a terrible fate, fight the people that were in their way, and face an evil that was hiding in plain sight at the same time... along with finding out what happened to his missing memories.

(Bleach/ MLP Crossover)
(Part of the Universe 13 story series, though reading the other stories is not required)
(Also, the story will not include the Fullbring or the Thousand Year War Arcs)

After the changelings' failed invasion of Canterlot, Twilight tries to soothe some of Ponyville's rampant paranoia by casting a spell to prove there are no imposters hiding in the town. But her spell leaves her in an alien body, facing a mob of angry ponies who just don't believe her when she says she is Twilight Sparkle.

Or, at least, she was Twilight Sparkle, anyway...

Featured on Equestria Daily, 2/17/13
Cover art is by the awesome and amazing Conicer

The war-stricken continent of Ylisse is finally at peace. The kingdom prepares for an era of prosperity led by Chrom, the prince who is to be crowned as Exalt. The battle-hardened soldiers who earned this victory now return home, looking towards a bright future. The Dark Dragon Grima is defeated, and we are free from the supposedly imminent fate of destruction that came with him. The question we should ask? "At what cost?"
First-person crossover with Fire Emblem: Awakening (major spoilers).
In Fire Emblem: Awakening, it takes place in the story after Grima is defeated (BY ROBIN).
In MLP, think of the setting as some time in early Season 3 (Twilicorn will not be included).
Cover art was spliced by me; all credit goes to the original artists.
Constructive criticism is appreciated.

After meeting a group of mares on a rather...unexpected predicament, he is left unfazed of such the thought and situation he's longed for so long. However, despite the rough road ahead that they will embark on, is it really possible for six mares to change this greatly and have him realize his importance by just being who they really are?

A story in the same vein as My Little Dashie, but not a carbon copy.
Awoken in the middle of the night by a mythical creature sitting on his doorstep, a man's life is drastically re-arranged by the sudden entrance of Princess Celestia. Struggling to accept things he couldn't ever think possible, he'll have to make a decision about what's worth changing his entire life.
(Note: I added the "Alternate Universe" tag because I imagined this being a reversed-roles universe where Luna is the big sister and banishes Celestia, rather than the other way around.)