The gameplay of FNAF is characterized by its simplicity while also being incredibly tense. The player is confined to a small office with little power, and they are not allowed to run or fight. There is a consumption of electricity for every activity, including closing doors, turning on lights, and checking cameras. In the event that the power is depleted, the player will be susceptible to the animatronics, which will result in unexpected jump scares that have become a staple in the horror gaming community. Players are required to strike a balance between being cautious and managing their resources because of the minimalist design, which generates a constant feeling of pressure.

FNAF is well-known not only for its gameplay, but also for its fnaf online complicated and enigmatic lore. There is a sinister past involved with the restaurant and its animatronics, which is revealed through cryptic messages, hidden clues, and secret minigames. Throughout the years, fans have spent a lot of time putting together speculations about the mysterious character known as William Afton, as well as missing children and machines that are haunted. The series has become a big online phenomenon with millions of devoted followers because to the complex storytelling that has helped it go beyond the scope of a simple horror game.