The Cursed Hour is a multiplayer game where four players explore a haunted mansion to find and destroy nine cursed relics, aiming to banish a vengeful ghost. Players locate the Altar Room, decipher clues, and use gadgets to find hidden relics. They solve riddles to place relics on the altar; correct placement destroys them, while mistakes trigger ghost hunts and reduce sanity. Collaborate, evade the ghost, and maintain sanity to successfully banish the haunting presence.