I had a fun time with these.

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  Changing Views One moment I was enjoying life, the next... well, I'm not so sure, though I was hearing voices. Now, however? I'm the last survivor of my race. I'm not even human anymore... by lllWarHawklll 132,163 words · 2,243 · 60
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  Quantum Castaways Twilight wakes up to a deadly game of survival on an enigmatic island, and she's not alone... by DustTraveller 136,873 words · 3,077 · 53
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  The Mare Who Once Lived on the Moon In a steampunk reimagining of the universe, Twilight Sparkle finds perhaps the one pony as lonely as she is. It's rather unfortunate that they're on the moon. by MrNumbers 143,130 words · 2,782 · 57
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  Bad Mondays A particularly stubborn human is lost in Equestria and is trying his damnedest to find a way out, while surviving the surprisingly difficult rigours of life in a land filled with cute talking animals. Hilarity ensues. by Handyman 858,701 words · 2,279 · 75
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  Not The Hero In all his existence, Discord has never faced an enemy as dangerous as this. by alarajrogers 297,437 words · 1,321 · 67