Game: Bards Tale III, The: Thief of Fate

You receive a letter from a dying man who informs you that, during a celebration of your defeat of the evil wizard Mangar, his true master — the Mad God Tarjan — arrived and unleashed foul creatures which destroyed the town of Skara Brae. The box cover states it thus: Skara Brae is in ruins. Roscoe's Energy Emporium stands vacant. The Equipment Shoppe went under so quickly Garth was crushed. Your Bard hasn't stopped whimpering since he realized all the taverns were closed.... Someone—or some thing—has sealed the city's fate with an evil so vast, so unspeakable, that a host of Paladins and an army of Archmages are out-matched. Hard times call for subtlety. Smaller is better. Sneakier is better. What the world needs now is a thief. The Thief of Fate. Your party then has to visit various alternate dimensions and collect artifacts of power with which to eventually destroy the Mad God Tarjan.
Each game uses different controls, most DOS games use the keyboard arrows. Some will use the mouse , "Alt" ,"Enter" and "Space bar".