The Wolfenstein games, on the face of it, are about killing Nazis, the protagonist being B.J. Blazkowicz, a Polish Jew. But these games, especially the ones produced by id Software, revolve heavily around the idea of Nazi occultism. An episodic addition to Wolfenstein 3D was titled Spear of Destiny, a reference to the spear which pierced Jesus' side at the Crucifixion. But more specifically it is a reference to the book "Spear of Destiny: The Occult Power Behind the Spear Which Pierced the Side of Christ" by Trevor Ravenscroft. This is evident when we consider that the 2009 sequel to Return to Castle Wolfenstein was created by Ravensoft (aka Raven Software), long-time collaborators with id Software and known for the games Heretic, Soldier of Fortune, and most Call of Duty games since Black Ops. Also, in Return to Castle Wolfenstein, there are depictions of the Crucifixion of Jesus in various places, for instance on a dresser door which, if destroyed, the player is awarded with full health and armor.