The manor is haunted by a ghost. The circumstances of its death are shrouded in mystery. Psychics gather to reconstruct the events of the crime's night. They won't make it without the ghost's help, whose visions are the only clues they have to discover the truth. The clock is ticking: at dawn, the ghost will disappear!

Mysterium is a thrilling and innovative immersive board game. It reinvents investigation games and cooperative games. Due to its asymmetrical roles, you'll have a great deal of fun trying to guess what the other players have on their mind, whether you play a Psychic or the ghost.

Gameplay Overview Mysterium is one of the most beloved cooperative games of the past decade — an asymmetric murder mystery where one player takes the role of a silent ghost communicating only through surreal, dreamlike Vision Cards, while the other players act as psychic investigators trying to decode those visions to identify the suspect, location, and weapon. The ghost can never speak; every clue is a carefully chosen card from a hand of strikingly beautiful, abstract artwork. The psychics collaborate and debate what the imagery might mean, racing to solve the mystery before dawn arrives in seven rounds. The tension between what the ghost intends and what the psychics interpret makes for hilarious, heartfelt moments every game. A July 2025 refreshed edition brings updated components and new vision cards to this modern classic, making it the perfect time to discover or rediscover one of the hobby's most imaginative designs.