In 'Nightmare Exchange,' players assume the role of a sleep therapist who stumbles upon a bizarre phenomenon: the ability to enter the dreams of their patients. As they navigate a series of increasingly surreal and treacherous nightmares, players must solve intricate puzzles, confront the darkest fears of their patients, and ultimately uncover a conspiracy that connects their dreams. Each dreamscape prompts moral dilemmas as players decide whose nightmares to savor for clues and whose to leave alone, blending elements of psychological horror with choice-driven storylines.