Arkham Horror was originally published by Chaosium, Inc. in 1987. This updated edition features new artwork and graphical design (including a new gameboard, counters, cards, and playing pieces) as well as revised and expanded rules from the game's original creator, Richard Launius. Players select from 16 unique playable investigator characters, each with unique abilities, and square off against the diabolical servants of eight Ancient Ones. Arkham Horror is a cooperative game for one to eight players and can be played in two to three hours.