Colossal Cave Adventure
1976 · Text Adventure · PDP-10
Overview
Will Crowther's 1976 cave-exploring game, expanded by Don Woods in 1977 — the first well-known text adventure, and the game that gave the adventure genre its name.
Deep Dive
Will Crowther wrote Colossal Cave Adventure in 1976 for the PDP-10 mainframe, and Don Woods expanded it substantially in 1977. The player explores a cave system said to be full of treasure and gold, travelling between dozens of locations and interacting with objects by typing short one- or two-word commands, which the game interprets. The program responds as a narrator, describing each place and the result of every action. Colossal Cave was the first widely known work of interactive fiction and the first well-known adventure game; the genre takes its name from it, and its influence runs directly into Zork and the text adventures that followed.
Developer Story
Colossal Cave Adventure was created by Will Crowther in 1975-76, a caver and programmer at Bolt Beranek and Newman who helped build ARPANET. Crowther modelled the game's cave system on Mammoth Cave in Kentucky, where he had spent years caving with his then-wife. After his divorce, he wrote the game partly as a way to stay connected with his daughters, who loved his caving stories. Don Woods found the program on Stanford's ARPA network in 1976 and expanded it significantly, adding fantasy elements including the treasure-hunting structure.
Did You Know?
- The cave geography is based on the real Mammoth Cave system in Kentucky — Crowther used actual survey data from his years of caving.
- The phrase "You are in a maze of twisty little passages, all alike" became one of the most famous sentences in computing history.
- Crowther originally wrote the game for his daughters after separating from his wife — it was a form of digital storytelling for children.
- Don Woods discovered the game on Stanford's network by searching for files with "advent" in the name — short for "adventure," the filename Crowther used.
- Colossal Cave Adventure directly inspired Zork, the Sierra On-Line adventure games, and the entire text adventure genre.
Sources & further reading
- Colossal Cave Adventure — Wikipedia
