Nightmare Puzzle Box is an interactive augmented reality experience that transforms a physical puzzle box into a gateway to a surreal psychological landscape. Inspired by the idea that nightmares often emerge from fragments of reality, the project explores the blurred boundaries between memory, emotion, and perception. Through immersive spatial storytelling and physical interaction, users are invited to navigate an evolving dreamscape where familiar objects become symbols of deeper fears, unresolved emotions, and the subconscious mind.