This game is based on the 'Adventure' principle. Your mission is as follows:
"You are in the county of Eldorado where cowboys are common and Indians terroise (sic) the settlers. Gold prospectors are common and there is one particular man: Billy McClusky, who is said to have made his fortune where many before have failed. After his unfortunate death, a Legend has grown about the whereabouts of his hidden treasure.
"Will you be the one to find his hidden treasure? When you have found as much treasure as you can, go to the Hotel and type SCORE."
You have to give commands like TAKE LAMP or KILL DONKEY. By using such commands you can explore and hopefully find the treasure.