This story is a sequel to Honey Pie

Pinkie Pie and Sweetcake ought to be able to live happily ever after. After all, he helped save Ponyville, and Celestia herself publicly acknowledged him as her subject, despite the fact that he's a changeling. The ponies of Ponyville should welcome him with open arms. It turns out, however, that the fact that some of them don't is going to be the least of his problems.

Cover art by dreamingnoctis.

This story is a sequel to Inscape

Penumbra seeks gainful employment. Hilarity ensues.

This is the third story in The Petriculture Cycle. The TV Tropes entry can be found here.

Artwork by Page Turner.

This story is a sequel to Petriculture

It's been several months since Pinkie Pie made a stunning admission about her past that permanently changed her relationship with her friends, particularly Twilight Sparkle, but life seems to have settled back to normal (well, normal by Pinkie Pie's standards, at least). However, when an old nemesis returns and ensnares Twilight in her influence, it's up to Pinkie to make things right.

This is the second story in The Petriculture Cycle. There is a TV Tropes Page for the entire Cycle here.

Cover image by Page Turner; "Princess Twilight" vector by Nianara.

The changelings are banished, the day is saved! Yet a victory for one must be a defeat for another, and this particular victory has left one changeling stranded in Canterlot, alone and broken. A certain pink party pony is also alone in the Canterlot night, hiding her depression from her friends. She cannot, however, hide her feelings from a changeling. What will become of this unlikely pair?

As featured in Twilight's Library.

Cover picture by Ruirik

A flip of a coin. A twist of fate.

Twilight Sparkle, younger sister of Princess Celestia's personal student, Shining Armor, grew up listening to her brother's bygone dreams of joining the elite of the elite: The Royal Guard.

Now, fresh out of the Academy, this young mare is ready to prove herself equal to the deeds of the great soldiers she read about as a filly. Too bad the princess she ends up protecting isn't Celestia.

This story is a sequel to A Stitch in Time

Having discovered the message left for her by Star Swirl the Bearded in the distant past, Twilight once again finds herself caught up in the middle of a struggle against forces far greater than herself. In order to even stand a chance she'll need to travel further and wider than she ever has, and forge some unlikely alliances with old enemies. All to bring down the powers that have manipulated and shaped her entire life, and retake control of her own future.

The conclusion of the Time Loop Trilogy, which began with Hard Reset
Available in Spanish thanks to dgs1993
Series TV Tropes page

Waking up with a hole in the head might seem like a bad way to start your life, but what if you deserved it?

"Every pony like me should be shot in the head at least once."

When he discovers the entire wasteland hates him, the amnesiac Ripple, once Two-Kick Rip the raider warlord, sees his wounds in a very new light. On a path that's half vengeance and half bid to redeem himself, he must rid the wasteland of his old gang and another, much more sinister foe.

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The cancelled sequel is over at Fallout Equestria: Echoes of Chaos.
This fanfiction is based on Fallout Equestria by Kkat; a familiarity with the source material may aid your enjoyment.

Twilight isn't having a very good day. An experimental spell blew up in her face, an army of changelings is attacking Canterlot, and she just died. Yet somehow, it looks like it's going to keep going downhill from here.

Given the chance to correct what's gone wrong, Twilight swears she's going to fix all this even if it kills her. Which it will. Frequently.

Cover art by Pixel Prism
Spanish Translation
Series TV Tropes page

This story is a sequel to Hard Reset

After the events of Hard Reset Twilight's life and mental well being are slowly returning to normal. Her recovery is cut short, though, when a letter arrives informing her that the time loop spell she cast is causing severe damage to space and time itself. In over her head, Twilight tries to summon anypony who will know how to fix it. The pony she gets is the last one she ever thought she would meet... and nothing like she expected him to be.

Available in Spanish thanks to dgs1993
Series TV Tropes page