In the endless hours of the night, while the decent citizens of Arkham sleep the sleep of the righteous behind closed doors and drawn blinds, some with dark plans and cruel intentions gather in obscure corners and unholy locations. Who will stand up to ruthless criminals and nefarious cults bent on their own sinister goals? Season of Night expands on the Arkham Horror base game, doubling the number of encounter cards, offering new scenarios, detectives, and new ways to interact with the story and With the inhabitants of Arkham for the players as they struggle to save the city and the world from an ancient evil.

Only an add-on, not a stand-alone game.