Penumbra Palace

A long time ago in a faraway land, there was a prosperous kingdom. Until one day the kingdom was afflicted with a terrible curse that summoned an ill manner of creatures that would rise and attack the people. Now only the castle itself remains as a refuge. The castle must survive the final night of the curse if there is to be any hope. Do not be afraid, the loyal castle defenders shall aid you, even from beyond the grave.

 Can you survive the night through all three difficulties of easy, medium, and hard? 

(Select the defenders by clicking on the icon at the bottom of the screen and then place them upon the squares.)