War comes to Equestria: with despair, with starvation, with suffering and with sacrifice. And the ponies must learn how to keep true to their values while surviving not just the rigors of battle, but the desolation of total war.

Twilight Sparkle never was a Unicorn and she didn't even know it.
What happens when her true heritage comes to light? Will she willingly embrace it? Or will she be forced to?

Beware of spoilers in the comments!

Edited by uTTerAbsurdity, Zervziel, Stormwatch and Gwenio

Cover art by the talented Cartoonlion and colored by the equally talented Stormwatch, original can be found here

Click here for the Tvtropes page

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.

A noble earth-pony family, fallen somewhat on hard times, is killed in a mining accident. They leave behind a single male heir, who is in sore need of a guardian, and of protection. Celestia takes the young pony under her wing and delivers him not to ponies - not earth, unicorn or pegasus - but to a dragon, an ambassador, an old friend of hers.

Playing a game which may just be deadly to the uninformed, the dragon decides that the one path open to him to ensure the safety of his charge and to carry out his sworn duty, is to adopt.

This story is a sequel to Song of Whispers

It wasn't enough for the Cutie Mark Crusaders to simply find their Cutie Marks and call it quits, and all it took was one fateful day in their clubhouse with Spike and Ruby Pinch to set into motion a chain of events that would turn their simple lives upside down. Crushes are formed, friendships are tested, and will Spike ever get to kiss Sweetie Belle? Let the passion of young love burn free.

Credit for the pic goes to smlahyee of DeviantArt. Special thanks to OminousBrony and MagicalTrevor.

This story is a sequel to The Ambassador's Son

Lord Sapphire lays dead and Tacksworn is in ruins, but Chiphoof Irontail has come home to his adoptive father, Sharptooth the dragon. Amidst the destruction and chaos, the community and the circles of friendship within must rise again to face an uncertain future. The young scion of the Diamond Expanse Clan must now face his greatest threat as the forces of war build to a crescendo. With his friends by his side, together they will uncover forbidden mysteries and face off against ancient powers that have lain dormant for centuries.

Set in RainbowDoubleDash's Lunaverse.

Trixie Lulamoon, Night Court Representative, Element of Magic and...kind of a jerk. But she's getting better. With the help of her friends Trixie is starting to realize what friendship could be. But a little ego never hurt anypony, right? When a filly desperately approaches Trixie to save her village, convinced Trixie is the 'Hero of Oaton', Trixie is caught up in the reputation she may not have earned. With two of her friends, Raindrops and Cheerilee, by her side Trixie returns to Oaton to confront a corrupt Lumber Guild. But how much of Trixie's past reputation with the town is genuine and how much was drunken delusion and ego-driven lies? And does she have what it takes to be a hero for real this time, or will ego and doubt get in the way?

Cover Art drawn by thelivingmachine02. ((The pic is humanized but the story is all pony, but never mind that! Behold the awesomeness!))

This story is a sequel to The Best Night Ever

Final Arc - The Black Wedding
CH63 - If I Had a Heart
- The ponies of the Fourth Tribe are ascendant. Shining Armor hunts down his changeling "daughters," and even Lady Antimony won't get in his way. Meanwhile, high above the burning city of Canterlot, a long awaited reunion occurs, and Twilight confronts Alpha Brass and makes a final decision.

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It began with a mare from Ponyville and a time-looping Prince from Canterlot. This most unlikely union now stands at a crossroads: a ruthless changeling invasion; a conspiracy within the highest circles of the Equestrian aristocracy; a half dozen power hungry noblemares looking to become a Princess in all but name. With the prize of Canterlot and its Platinum Crown at stake, it falls to six Elements of Harmony to once again save not just Ponyville, but all of Equestria.

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TVtropes page is here: link

The prequel to TPC, "The Best Night Ever" is here. link
The side-story crossover with "Sweetie Belle Chronicles" is here. link

Someone out there made a playlist for Platinum Crown: Rarity, Blueblood and Chrysalis. Pretty sweet!
Wish I knew who, or even when they did it, though. I especially like the Chrysy playlist.
https://8tracks.com/explore/this_platinum_crown/hot/1

I've gotten some cool TPC related art done, too.
So Sweet and Tasty's TPC Cover Art
link
Thanks to Madmax for these two:
Rarity, Blueblood and Antimony
link
Dash and Ritterkreuz
link
The Terre Rare Founder - Lady Arsenic
link
Twilight and Alpha Brass Battle Duet
link

Young Nictis had one dream: to serve his hive by becoming an Infiltrator, the most vital and vaunted role a changeling could aspire to. To hide in plain sight among the other species, blending in, while gathering the vital emotional energies that fueled his people. Few were deemed worthy of the dangerous job. He was one of the few nymphs selected for training, in the hopes that one of them would develop the skills needed to be entrusted with such a treacherous task.

But when a training expedition ends in tragedy, Nictis finds himself thrust into the role not to serve his hive and people, but to preserve his own life. Separated from the hive, alone, he must put what little training he has to the test. He must blend in with the hive's greatest source of food, and its most dangerous enemy: the ponies of Equestria.

(This story takes place in the same continuity as Fragments, but stands on its own. Reading that story isn't necessary for this one.)

TV Tropes page

Book cover art by viwrastupr

Jon Stewart needs to find a way to get more people to watch his show. To do this he welcomes a new series of guests from a far off land containing monsters, magic, and most importantly... ponies!
Join him on an adventure that has him matching wits with sentient mythical creatures ranging from god-like ponies to a fire breathing dragon! Each "Episode" marks a different MLP character getting a chance to travel to the human world for an interview on The Daily Show with Jon Stewart.

Please feel free to leave a suggestion for who Jon should interview next.
Disclaimer: For proper context it is highly recommended to reach each chapter in order as many interviews allude to past guests and events.
A special thanks to Zeta040, Cantankerous, and Zervziel for proofreading several stories listed below.

List of Characters who have already appeared:
- Chapter 1: Spike
- Chapter 2: Derpy
- Chapter 3: Applejack
- Chapter 4: Ms. Cheerilee
- Chapter 5: Octavia
- Chapter 6: Zecora
- Chapter 7: Mayor Mare
- Chapter 8: Twilight
- Chapter 9: Trixie
- Chapter 10: DJ Pon3
- Chapter 11: Rainbow Dash
- Chapter 12: Iron Will
- Chapter 13: Fancy Pants
- Chapter 14: Queen Chrysalis
- Chapter 15: Luna
- Chapter 16: A Changeling
- Chapter 17: Rarity
- Chapter 18: Lyra and Bon Bon
- Chapter 19: The Cutie Mark Crusaders
- Chapter 20: Discord
- Chapter 21: Fluttershy