Wizardry: Knight of Diamonds - The Second Scenario - Nintendo NES

The story takes place after the events of the first game. The mad king Trebor has committed suicide after becoming obsessed with the amulet and fearing the return of Werdna. With both Trebor and Werdna dead all seemed well within the kingdom of Llylgamyn. Unfortunately, this peace didn't last very long. With Werdna dead and out of the limelight, an evil knight named Davalpus felt it was time to make his move. He stormed the castle, slaughtered the royal family, and declared himself supreme dictator for life. The Prince of the land fought and killed Davalpus using the legendary Staff of Gnilda and wearing the armor of the Knight of Diamonds. However, the god Gnilda took the staff back and placed it deep within his heavily guarded six-level temple. Since the staff's power protects the land from invasion by hostile outlanders, someone will need to venture into the temple and get the staff back along with Gnilda's blessing.