The Princesses find an alien creature barely clinging to life at the scene of a terrifying crash. Can the Combined Power of the Elements of Harmony save it, or more importantly, should they save it? Will the arrival of this strange creature tear Equestria apart?

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https://tvtropes.org/pmwiki/pmwiki.php/FanFic/Article2

Inspired by the heroics of the mysterious mare known as the Stable Dweller, Silver Storm, a guard of the town of Marefort, decides to go on a daring mission to rescue her captured brother. Of course things rarely go as planned and her attempts at heroism drags her into a tangled web of plots and conspiracies as warring factions vie for control over the last great city: Dise.

Spanish Version translated by Spaniard-Kiwi: https://www.deviantart.com/spaniard-kiwi/art/Fallout-Ecuestria-Heroes-996263393

This story is a sequel to Siren Song

Bioshock meets MLP in this psychological thriller, where Celestia's new faithful student, Siren Song, must discover the truth behind the city beneath the waves.

Since arriving in Vision, Siren has done things she never thought she was capable of—all in the name of survival. But now she abandons safety to gallop back into the darkness. Determined to do the right thing in a city gone mad, Siren must face the horrors she once fled from. But all is not as it seems in the vast and dark ocean, and Siren’s greatest foe may yet lie within herself.

Book 2 of the Vision series. Sequel to Book 1: Siren Song.

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Bioshock meets MLP in this psychological thriller, where Celestia's new faithful student, Siren Song, must discover the truth behind the city beneath the waves.

Beautiful, gifted, and faithful student of the Princess of the Sun, Siren Song has very nearly everything a pony could want. Sometimes though, in the twilight hours, Siren can see the sadness in her mentor's eyes. Once, ponies whisper, the Princess had another student named Twilight Sparkle, but she left Equestria, never to return. The pony who has a perfect life just needs one more thing—to convince Twilight Sparkle to come home so the Princess will smile again. But when Siren arrives in pursuit of Twilight, she soon finds herself trapped in a city of horrors, with only its monstrous denizens for help.

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Based on a true story. Kinda. Not really.
A man named Jason previously led a rather melancholy life before he died violently. No surprise there. But as he wakes up in Equestria and is thrown into a foreign body, he is forced to survive with the guise of a changeling. Taking place shortly after the failed changeling invasion of Canterlot, how can he keep from being revealed by new security measures, and blend into this new world, while making use of the most unlikely of allies? But of course, avoiding ponies only turns out to be the easy part when trouble has a habit of reading its ugly head. Really though, what could go wrong?

Props to the ever epic Zubafa for his cover art.

I always wanted to go to Equestria. When I got the chance, I took the deal without reading the fine print. To my surprise, I didn't arrive there as a pony, or even as a human. It seems I get to view this world from a different perspective than what I've imagined.

My name is Echo. I am a Diamond Dog.

-Edited by the one, the only, Nathan Traveler!
-(Cover by Jovial_Shake of fimfiction.net)
-Now featured on Equestriadaily.com!

I'm Griffin, not much else to it. I've been bullied most of my life, which left me bitter and sarcastic. I'm a closet brony. What? You think I'm just gonna go out and tell a world that hates me that I watch a cartoon intended for little girls? I don't feel like giving the punks at school any more ammo. That's when cosmic powers decide I need to take a trip to my favorite fantasy land. But all is not sunshine and rainbows and it certainly won't be after I'm done with it. Equestria from the point of view of an extremely pissed off teenager, with a twist. Rust, the author of 'The Ballad of Echo the Diamond dog' is awesomesauce enough to have a cross over between our stories. Carnelian is a boss when it comes to art. Part of the 'Chess Game of the Gods'.

Violence, gratuitous swearing, and sexual themes. Reader discretion is advised.

James Kaughn is a member of the world's most elite fighting force, but when his team is sent in to rescue a captive family in Afghanistan the mission hits a snag. He stays behind to allow the others to escape, fully expecting to die, but ends up in an unfamiliar place. Join him as he meets new challenges and struggles with his worsening PTSD. Will he be able to actually make friends and not just teammates?