Fallout: Equestria - The Hooves of Fate was written by Sprocket Doggingsworth, who is an author, musician, columnist, and charity organizer within the fandom.
A young filly in present day (Pre-War Era) Ponyville is cursed with nightmares of post-apocalyptic Equestria. She finds herself influencing the course of future history in ways that nopony notices, and that she herself cannot understand.
She must learn to balance her life at home with her life on the other side of the veil, and fight to preserve her own sanity, and her own innocence. She discovers that such a task is only possible through the magic of friendship.
Pre-War Era Ponyville
Crystal Empire (80 years after Littlepip)