Greenwood high school, located in a remote mountainous area, two students found themselves trapped and vulnerable. The place they once knew has changed in unsettling ways, haunted by evil creatures. To escape, they must explore the mysterious campus filled with ominous objects and puzzles. How will they survive in this ever threatening environment? Could they return to safety in one piece?

Set in a fictitious world in the 1960s Taiwan under martial law, Detention, the story-driven atmospheric horror incorporated East Asian elements rarely used in games. Taoism, Buddhism, Chinese mythology, the game draws on local Taiwanese cultural references to tell an unique and terrifying story.