Wizardry IV: The Return of Werdna

Wizardry IV: The Return of Werdna is the fourth entry in Llylgamyn saga, it's one of the most unusual computer RPGs and infamously known for high difficulty. The player is not commanding a party of heroes, but the evil wizard Werdna who was defeated in the first game. Werdna has to escape a deep dungeon in which he became entombed. His adversaries are heroes based on the character classes of the previous Wizardry games.