Ultima Underworld II: Labyrinth of Worlds (PC/DOS) 1993, Origin systems

Ultima Underworld II: Labyrinth of Worlds takes place one year after the events of Ultima VII: The Black Gate. To celebrate the defeat of the Guardian, Lord British invites the Avatar and his companions to his castle. However, in the night of the feast the Guardian attacks again, encasing the castle in a giant gem of blackrock. Deep in the sewers of the castle, another blackrock gem is found, created as an aftereffect of the attack. This gem is a teleporter to other worlds controlled by the Guardian. Now th