Despite the risks you have decided to explore the caves and take whatever treasure you may find.
Will Crowther's original, from 1976, was based on the actual layout of the Mammoth Cave in Kentucky.
In 1977, Don Woods helped Crowther with expanding the game and adding various fantasy elements. It's this latter version which is normally referred to as "the original adventure".
The number of CCA variants is fairly large (key), both for mainframe and home computer systems.
The earliest, currently known "home computer" port of the game is the August 1978 Heathkit H8 version by Gordon Letwin; who later produced Microsoft's version of the adventure.
As of November 2022, a VR version is in the works.
[+] Users currently playing this game
This game was referenced in a recent episode of the BBC programme "Richard Osman's House of Games" (series 4, episode 14).
I played WOOD0350 for the first time many years after having explored lots of worse, more modern adventures, and I was awed at its ingenuity, complexity, and atmosphere, which took me totally by surprise. Despite its venerable age, there are many lessons here for aspiring adventure designers. It's no wonder it became a cultural phenomenon.