Five Nights at Freddy's is the game that turned a night-shift security job into one of the most recognizable horror premises online. You're locked into a small office at Freddy Fazbear's Pizza from midnight to 6 AM, watching security cameras as the restaurant's animatronic performers β Freddy, Bonnie, Chica, and Foxy β start wandering the halls after dark. Your job is simple on paper: survive until sunrise. In practice, it means constantly checking camera feeds, closing doors at exactly the right moment, and managing a limited power supply that runs out faster the more you use it.
The horror here comes almost entirely from restraint. You never see the animatronics actually move β you only ever notice they've gotten closer between camera checks, which builds a specific, creeping dread that a jump-scare-heavy game usually can't match. Every night adds new behavior patterns, so what kept you safe on night one won't necessarily save you by night five.
It's a masterclass in tension built from almost nothing but a security camera and a power meter, and it kicked off one of the biggest horror franchises to come out of indie games. If you're after more slow-burn dread, GBK Games also has Amanda the Adventurer and That's Not My Neighbor.