This is a horror game. An explorer was curious about a rumor that talk about the monster inside an abandoned building. He is captured by a monster when he arrive and found himself in the building when he woke up again. He needs to find an exit out of the building and praying not to be caught by monsters. The explorer has a flashlight, but its power is limited. Players need to find batteries in the map to make sure the flashlight have enough power. The exit doors have different requirement to open. Perhaps looking for a key card, or entering a password, or waiting for the door to be unlocked. In addition, players need to deal with monsters and make sure not to get caught.