I'm the Boss in a Horror Game

Have you ever seen the last vision of the deceased before death? It was a twisted and absurd world, with the most terrifying monsters and the most morbid world view. The stumps that had been sewn together were crawling around in the middle of the night, a pale white face looked at each other under the bed, and the faceless girl came out of the painting on a snowy night... A group of people who are dying are selected to enter here. Only by completing the task can they survive! In the world of the fourteen dead, the story unfolds...