Canterlot... For centuries, Canterlot was the shining gem of Equestria, the pinnacle of pony society. Now, it’s a reminder, a bleak and monolithic warning to the world. 

Changed by the chemical and technological poisons that plague the mountain, an abomination of nature, I wander the greatest disaster Equestria has ever seen. 

... I will escape eventually, and when I do, I hope my friends still see me as Twilight Sparkle, and not the monster that hides among the ruins. 

This story is a sequel to What if: Rarity from The Three Sisters met with Chrysalis

Choosing whether or not to visit Chrysalis has been bugging Rarity for a week since receiving an invitation to do so. But there seems to be trouble brewing in the Hive and Rarity now has little time to act. Either way, her family's future rests in her hooves.

Now with a TV Tropes page! Warning: Will Contain spoilers.

This story is a sequel to The Emergency

100 years in the future, where Equestria is a parliamentary republic and cutie marks don't exist. There is another nation that has grown to be the antithesis of Equestria, the Unified Praesidium of Socialist Republics. After being taken prisoner by the NKVD, the Praesidium Intelligence Agency, unicorn mare Summer Lightfall must join forces with an unlikely band to pull off the greatest escape from a prison the world has ever known.

There's something strange and unnatural living in Bon-Bon's house.

Something other than Lyra.

The Lone Wanderer has been known as the man who shouldered the nightmares of every man, woman and child in the wasteland, so that they may live. But when the Wanderer was once again abducted by aliens, he found himself falling, quite literally, into a whole new wonderous world, untouched by the horrors of nuclear devastation.

He has been facing other people's nightmares constantly for almost a decade, it was high time he was allowed to wake up.

Meanwhile, the ponies of Equestria are baffled by a strange object that fell from the sky.

Fallout/FIM crossover. HiE. T for violence and some language.

Now with a TVTropes page!

The star system Omega Centauri was just another oddity on a map to scientists in the not too distant future. However when they found the star was orbiting an earth-sized, earth-like planet instead of a black hole as its motion had suggested, a mission was scrambled to investigate this most unusual of celestial behaviors.

Hamstrung by politics, and nearly crippled before it began, the 'Lone Ranger' mission was reduced to just one crew member and left to his own devices.

These are the logs of Arrow 18 and its lone commander. This information is classified TOP SECRET by the Global Space Agency.

Do NOT tell the princess.

Two months have passed since House faked his death to avoid prison and spend time with his best friend, Wilson. Together they have traveled the United States doing whatever it is Wilson wishes to do before he dies from terminal cancer.

The most recent decision was to go to Trentville, a small town with little to offer the pair, apart from an unbeatable drinking challenge.

After successfully completing the challenge House and Wilson pass out in an an alleyway behind the pub, only to wake up in rather different land.

How will House cope in a land that is filled with ideas he believes to be moronic, where kindness and friendship roam free. More importantly, how will Equestria cope with House's cold, hard, cynical logic? Also how will Wilson cope living in a land filled with ideals he has tried to convince House of his whole life?

This story is a sequel to Dark Wanderings

It's been nine months since Twilight Sparkle got back from her solo sojourn to the Capital Wasteland where she met Ethan Smith, AKA that Crazy Son of a Bitch, AKA the Lone Wanderer and was changed forever. Now with Equestria teetering on the edge of a three way war Ethan is called upon to save Equestria, or at the very least to keep Twilight alive. But dark things are awakening in the background and all is not as it seems, can Ethan save Equestria? Can Twilight keep her friends on her side? Will these questions never stop? The answer to at least one of these is yes but can you find out which?

Edited by TacoTown
Coverart by the awesome Derrem

Now has a Tumblr

Twilight Sparkle has disappeared. Not just from the face of Equestria but possibly from the face of her universe itself. She must now learn how to survive in a place unlike anything which she has experienced thus far. Luckily she has a friend out in the Wasteland. Join Twilight and The Lone Wanderer as they try and discover a way to send Twilight back to Equestria. Of course this is the Wasteland and things are never as simple as they appear...

Now has a Tumblr

Recently rewritten. Contains occasional adult humor and violence.
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On a request from Princess Celestia, Twilight Sparkle and the rest of the mane six explore an abandoned mansion located deep in the woods. While doing so, they unwittingly stumble across an enchanted mirror that scrambles their DNA and pops out three brand new bouncing baby ponies. Hilarity and drama ensue as the mane six must cope with being suddenly thrust into motherhood, as well as protect their new foals from a dark god that wishes to use them for his own sinister gain.

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Fanart:
The three foals. by Freefraq on Deviantart.