File:Quake1.gif E2M3: the Crypt of Decay Game Episode Designer Level Editor Soundtrack Level Theme Previous Map Next Map Specific Information Enemies Secrets New Weapons New Powerups New Obstacles New Enemies New Misc [Source] The Crypt of Decay is the third level of The Realm of Black Magic. It is a dark and decrepit castle with a tall multi-level central tower and a series of water canals around it. Many areas in the level have been infested with Zombies and other dangerous foes lurk in the shadows.