SF (canon species only; no humans) Ponies were magically and genetically engineered to be the perfect servitor race. They are powerful, adaptable, intelligent and completely under the control of their creators. A laboratory accident frees one such pony from her mental chains, but how can one mare save herself and the rest of her kind if she doesn't even know she's a slave?
This is not the Equestria you know and these are not your little ponies... not yet, anyway.

Tags: Adventure, Diamond Dogs, Gryphons, NO HUMANS (did I mention that already?)
Other tags: historical, mind control, Clarke's 3rd Law, excessive use of high energy physics, before they were famous.
Detailed review by PaulAsaran.
Cover art by endrome , used with permission.
Russian translation (partial -- 'unofficially' completed in the comments)
A Soot-Covered World, book 1.

I am going to make this clear: yes, I woke up in Ponyville, and yes, I was a pony. For the next five minutes I was happily shaking my cool mane and wagging my new tail like a puppy. Best five minutes ever... and then everything went to hell.
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Eric knew exactly what to expect of Equestria, but when he actually got there, absolutely nothing was as he expected.

I've been working on a completely separate My Little Pony: Friendship is Magic story for the past year, and as of this blurb I'm about eighty thousand words into it, but it's not ready for publishing. Early on in the writing of that story (March 2011), I decided to write a quicker spinoff story of The Conversion Bureau, which I saw on the Equestria Daily blog. The initial story seemed to get mixed reactions, but regardless of how people felt about the story itself, folks were having fun writing spinoffs. I thought it'd be fun too, so here's what I came up with.

Contains a smattering of bad language and gun-related violence.

Over the course of several years, Rarity has achieved a fabulous career, contributing to both Equestrian fashion and the Ponyville community. She is admired by her clients, envied by her peers, and cherished by her dear friends, proving that she's a dependable shoulder to lean on.

Then one day, a mysterious pony visits from out of town. She wishes to meet Rarity, but not to thank her.

Cloud Kicker might just have the wildest life of any pony in Equestria. Marvel at the insanity that is her life, and laugh at the suffering of her poor beleaguered best friend, Blossomforth. And maybe, just maybe, there's more to her than just the lovable sex maniac everypony thinks she is.

This is a semi-sequel to "The Incredibly Dense Mind of Rainbow Dash." Not really a proper sequel, since it's focused on Cloud Kicker and Blossomforth instead of Rainbow and Pinkie, but it's in the same continuity. So I guess that makes it a follow-up-side-quel story. Or something. You don't need to have read "The Incredibly Dense Mind of Rainbow Dash" to read or enjoy this, but you ought to read it anyway, just because.

TvTropes Page

The central story of the Winningverse.

We got a tag for Cloud Kicker, but Blossomforth still deserves one too.

While helping Twilight Sparkle search the Starswirl the Bearded Wing of Canterlot Castle for the time-stopping spell, Pinkie Pie gets sucked into a vortex where she runs into four doppelgangers of herself from other points in time and space. A Pariah lost between the barriers of reality requests the five pastel mares' assistance in stopping the Anti-Marenitor's wave of annihilation. The entire fate of the multiverse hangs in the balance. Pinkie Pie, however, is too busy searching for a birthday gift for Twilight.

And then Discord happens.

I blame this fanfic entirely on Ponky, the talented stalker who gave me the prompt in the first place.

Ponkified covert art also by Ponky.

One of the human elites has taken his luxury yacht on a Farewell Tour of Earth before it's swallowed up by the emerging Equestria. His guests and crew reflect on their lives and on the choices that have led them to the decision to bid farewell to Terra before embracing ponydom.

To Twilight Sparkle and Princess Celestia, it is a simple surprise visit to Canterlot. To the ponies of the Equestrian Civil Service, it is twenty-four hours of chaos, politics, weaponized dessert, politics, underhooved manipulation of media, politics, and things batrachian and tentacular. Who said bureaucracy isn't exciting?

Cloud Kicker might just have the wildest life of any pony in Equestria. That may just be why Princess Luna wants Twilight Sparkle to study the insanity that is Cloud Kicker's life for a sociology report. Unfortunately for Twilight Sparkle, she is going to have to survive the circle of jealous friends, paramours, enemies, crazy co-workers and disappointed family members that surround this crazy pony. Will Twilight Sparkle be able to complete this assignment before it spins out of control, or will she be reduced to a neurotic mess?

A Winningverse Story.

How does an immortal deal with the crushing burden of living forever? Of seeing friends, lovers, and everything else age and leave her behind? By indulging in the finer things.