Quondam

Quondam is a piece of Interactive Fiction written by Rod Underwood on the Phoenix mainframe computer in 1980.

Welcome to the medieval land of Quondam, where all things magical are possible. The land is full of wonders, but is also full of traps for the unwary. Your task is to find all the treasures and a safe place to deposit them. But beware, things are seldom as they seem.