TwinWorld: Land of Vision is a action platformer. After the Cariken family became complacent, the land of Gaspar ceased to be ruled as well. This left the way clear for evil men such as Maldur the druid to step in and slaughter the family, shattering their magical amulet. Only one of the family survived, and the amulet was broken into 23 pieces.
Here´s gameplay video by World of Longplays