This's considered to be the most terrifying game in the series, not only due to how realistic all of the animatronics look, but the atmosphere, tone, and since the game is extremely dependent on sounds makes it way more terrifying than the others. Scariest game in the FNAF series.
In conclusion, 'Five Nights at Freddy's' is a notable addition to the horror movie genre. It manages to blend family-friendly elements with spine-tingling scares, making it suitable for older kids and teenagers, especially those who are fans of the franchise.