The Zork Chronicles

Mirakles is a hero who can face the challenge of Zork with nothing more than his sword and his faithgul companion Glorian.

With Glorian prodding him ever onward, Mirakles descends into the Great Underground Empire where he encounters Spike the Protector, the Dragon's Lair, the Wizard's Workroom, the winged vampire were-unicorn, and, of course, the Warm Boot of Frobozz.