HPPD: A Never-Ending Trip is a first-person, text-based adventure game that will take you inside the mind of a person suffering from Hallucinogen Persisting Perception disorder and the constant visual and aural hallucinations that come with it. The game uses psychological horror elements to immerse the player into the surreal and terrifying experience that the main character is going through, as they try to find a way to cure their disorder or even find a way out of their own mind.