Packaged with a sixty minute video cassette, the game required 3-6 players (often referred to as 'maggots' or 'harbingers') to attempt to collect keys while trying to beat the clock included on the video. At random intervals the game would stop and The Gatekeeper would appear to either taunt, reward, or punish the players in a variety of ways.

Prior to beginning the game the players are required to write their "greatest fear" on individual slips of paper. The game is won by collecting six special keys before making it to the center of the game board where the player would draw a 'fear'. If that player draws someone else's fear, the tape was stopped and that player declared the winner (in later versions of the game, one must draw their own fear to win). If no one is able to accomplish this within a set amount of time (45-60 minutes), the Gatekeeper is declared the winner.

description from wikipedia