Baby's Nightmare Circus is a fan game based on Freddy's Five Nights: Sister Location, and features an introduced character, Circus Baby. Unlike the original game, this one is set in a pizza parlor, not a circus.

Baby's Nightmare Circus is very similar to the original game, and its main goal is to move the player away from nightmarish animatronics. But in this game, players are free to explore different circus tents, with flashlights keeping creatures out.