Phasmophobia is a cooperative horror game where players take on the roles of ghost hunters. The objective is to investigate haunted locations, gather evidence of paranormal activity, and identify the type of ghost present. Players use various tools, such as EMF readers, spirit boxes, and cameras, to collect data and complete objectives. The game features different difficulty levels and a variety of ghost types, each with unique behaviors and characteristics. Players must work together to survive encounters with the ghost while managing their sanity levels, as higher levels can lead to more aggressive ghost behavior.