Solstice

The player controls a wizard named Shadax and explores a maze of isometric rooms and gardens of the fortress Kastlerock to find the six pieces of the Staff of Demnos, the only weapon that can defeat Morbius. The non-linear adventure game does not impose a fixed sequence of play, although Shadax must collect various keys, depress "plungers", and set off bombs before he can enter parts of the dungeon. (Wikipedia)