Waxworks, a point and click adventure game with RPG elements released in 1992 by Accolade. The game was released for Amiga and PC.
Once upon a time, the Ixon witch stole the chicken from the prototype of your family. The cut was to cut the hand. In retaliation Ixon, she casts a charm (curse) on your family. Whenever twins are born in a house, one of them will grow up to be the good man and the other will be the bad one - the black sheep. The curse goes on to this day. Now it's time for Alex - your twin brother - he's going to inherit the aforementioned curse.
Your task is to retrieve the curse from your family. To do this, you will have to travel in time and space in the title museum of wax. In each epoch / location you have to kill the evil twin brother. Locations include ancient Egypt, the cave, the mines, or Victorian London.