From the introduction in the manual:
"The Bard's Tale is a fantasy role-playing game. First in a series of Tales of the unknown, this one is set in the city of Skara Brae.
Like other fantasy role-playing games, there are three objectives you will be trying to accomplish. How you do this is up to you...
Your most important goal is to complete the quest built into the game. In The Bard's Tale the city of Skara Brae is threatened by an evil mage called Mangar. You must find Mangar and "persuade" him to release the
once-harmonious city from his evil control.
But Mangar is protected by layers of obstacles, mazes and evil henchmen. Your second goal is to develop characters capable of surviving these barriers. These characters are your alter ego in The Bard's Tale. They act according to your commands, but over the course of the game they change, much as real people do over a lifetime. They improve their skills in magic, combat, stealth, etc. They amass wealth and treasured objects. And they worry about dying too soon.
Your third goal is to explore the entire world of The Bard's Tale. There are numerous goodies, puzzles and special places in Skara Brae. Part of the fun is finding them, and discovering the layout of this fantasy
world. How do you get into the walled off towers? What's in the castle? Where are the legendary catacombs of Skara Brae?"