Colossal Cave Adventure

Colossal Cave Adventure is a text adventure game originally developed by Will Crowther in 1976 for the PDP-10 mainframe computer. The game was expanded in 1977 with the help of Don Woods, and in the following years other programmers developed variations of the game and ports to other systems. In the game, the player controls a character through simple text commands to explore a cave rumored to be full of riches. Players earn predetermined points for finding treasure and leaving the cave alive. The goal is to get the maximum number of points. The concept stems from Crowther's experience as a spelunker. The game's cave is loosely based on the Mammoth Cave system in Kentucky.