Challenge of the Five Realms: Spellbound in the World of Nhagardia is a role-playing video gamecreated by MicroProse for the PC-MS/DOS in 1992. The Prince of Castle Ballytogue awakens after being hit on the head to learn that his father, King Clesodor of Alonia, has been killed by an evil sorcerer named Grimnoth. As the prince seeks to avenge his father's death and defeat Grimnoth, he explores the five realms, numerous cities, and visits many people with only 100 game days within which to complete his tasks. Source: Wikipedia, "http://en.wikipedia.org/wiki/Challenge_of_the_Five_Realms,"