Five Nights at Freddy's is an indie horror survival game series. The series is mainly produced by Scott Gogh, and generally runs in PC game and mobile game mode. Simple game operation, scary mechanical dolls and hidden mysterious story are the popular factors of this game.

The story of the series focuses on a fictional restaurant called Freddy Fazbear's Pizza, which is based on the real-life design of Freddy the Rat and ShowBiz Pizza Place[1]. In the first three games, the player takes on the role of a night guard, using different props to survive and avoid attacks from the murderous animal mechanical dolls. The fourth game uses a different gameplay style than the previous one, this one takes place in a child's home, the player must fight against the nightmare mechanical dolls, and close the door at the right time to avoid being hurt. The fifth game takes place in a maintenance facility owned by the sister company of "Fess Bear Freddy's Pizza Restaurant". Players play a technician this time, according to the instructions given by the artificial intelligence to carry out a variety of tasks. The sixth game is a simulation game in which the player takes on the role of the owner of a pizza restaurant, paying for items and decorating the restaurant. Similar to its predecessor, the player must work the night shift in the pizza restaurant.