Project Box is a Five Nights at Freddy's fan-game being developed by Mediocre Mel. It is based on the book lore rather than the original lore of the games, however it does have contradictions to The Fourth Closet.

During the main sections of gameplay, there are six posts in the rooom you can move to and interact with: The monitor, power breaker, a clock, a large box, and the two doors on opposite sides of the room.

PROJECT BOX takes place only a day or two after the ending of The Twisted Ones. Charlie [the player] wakes up, once again in the underground pizzeria. However, this time she is in a room she has never been in before, and it doesn't look like she’ll be able to leave it so easily. Patronized by Springtrap, Charlie has no other choice but to survive the horrid nights, and solve the mystery shrouding her late father during the lonely days.