The game is set within a series of top-down, third-person, orthographic mazes where the object is to kill monsters, gather treasures, and find the exit in every level. An assortment of special items can be located in each level. These items can increase the player's health, unlock doors, award more points and destroy all of the enemies on screen.

Each player controls one of four fantasy-based characters: Thor, a warrior; Merlin, a wizard; Thyra, a valkyrie; or Questor, an Elf. The characters are named on the cabinet artwork, but in-game they are referred only by the title of their classes. Each character has his or her own unique strengths and weaknesses. For example, the warrior is strongest in hand-to-hand combat, the wizard has the most powerful magic, the valkyrie has the best armor, and the Elf is the fastest in movement. The characters are assigned by control panel in the four-player version, whereas in the two-player version each player selects their own character at the start of the game or while joining during the middle of play.

The enemies are an assortment of fantasy-based monsters, including ghosts, grunts, demons, lobbers, sorcerers, and thieves. Each enters the level through specific generators, which can be destroyed. The most dangerous enemy is Death, who can only be destroyed by using a magic potion—otherwise Death will vanish automatically after it has drained a certain amount of health from the player.