You are standing at the end of a road before a small brick building. Around you is a forest. A small stream flows out of the building and down a gully. There is a shiny brass lamp nearby.

Get ready to make the first decision that will affect your course through "Colossal Cave" in the first complete version of Adventure ever Implemented on a personal computers! As you prove yourself sufficiently skilled in overcoming obstacles, more sections of the cave will become open to you. Proceed, explore the cavern and collect your treasures. But watch out! Killer dwarves, green snakes, active volcano's, sulfur lakes, trolls, a five-foot oyster and other hazards abound. Each Microsoft Adventure session is unique, with over 400 messages and descriptions that can be combined in endless ways. Never before has this sophisticated fantasy / logic game written for the DEC PDP-10 been totally implemented on personal computers.