File:Quake1.gif E1M6: The Door to Chthon 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 Door to Chthon is the sixth level of the Dimension of the Doomed. Filled with deadly traps and obstacles to overcome, this fortress-like level is the final challenge for those that seek to access the The House of Chthon. Many of the monsters are not visible from the start and appear later - either teleported or dropped from hidden compartments.