A free program for Android, by Games Pokaifu.

Five Nights at Scary Teacher is an action horror survival game that combines the elements of horror, survival, and detective games. The story takes place in a school where a math teacher has been stalking students for years. He has been known to catch students who have been playing a game called Craft. One day, he shows up at the school and starts to chase students who have been playing the game.

The students manage to hide and get away from the teacher, but he finds them anyway and starts to chase them. They hide in a school building and he does not find them until the next day. Then, they find that the building has a limited supply of electricity and they have to get away from the teacher as soon as possible.