Black Book is a video game combining elements from card-based RPGs and adventure games. Players take on the role of Vasilisa, a young sorceress who gave her life to serve dark forces. The game features a haunting storyline set in Russian folklore where players must uncover secrets hidden in darkness as they explore the countryside. Through solving the woes of common folk by confronting demons and performing exorcisms, players will eventually come into contact with Black Book - an artifact said to be powerful enough to grant any wish when all 7 seals are uncovered.