Not Related to Fallout: Equestria which I haven't read yet
Inspired by Fallout 3
A colt awakes 50 years after a tragedy which left the entire world a barren wasteland. Buildings were now ruins and the sky an ominous red. The "wasteland", as the survivors call it, is overrun with horrible mutations. Mutations brought on by the radiation that covered the earth after the SpellBombs went off. The colt then meets up with an expert sharp-shooter named Viper. She takes him back to her lair, trains him, and gives him a name. They then do everything it takes to survive the mutations... as well as the cunning Flashpoint and the nefarious bounty hunter.