Lune's mother left after a stranger called him Little Bunny, promising to return in 13 minutes. She never came back. Explore a surreal psychological horror world shaped by triskaidekaphobia—the fear of the number 13—and help Lune uncover what happened to his mother.
Wake up in a dark underground chamber with no memory of why you are here. CHAMBER 13 is an atmospheric incremental game where you smash rocks, earn money, and buy upgrades to break free!