In 'Nightmare Chronicles: Whose Nightmare Is It, Anyway?', players take on the role of Alex, an unsuspecting resident of a suburban town that has been overtaken by collective nightmares. The townsfolk have mysteriously started experiencing shared dreams that reflect their deepest fears and unresolved trauma. With the help of a quirky dream-guide named Dr. Oddball, players must navigate through various surreal dreamscapes, interact with bizarre dream characters, solve psychologically challenging puzzles, and piece together the mystery of the nightmare epidemic. Each decision taken in the dream directly affects the waking world, leading to multiple endings that explore themes of fear, identity, and the human psyche.