Level: E1M1: Slipgate Complex

Level: E1M2: Castle of the Damned

Level: E1M3: The Necropolis

Level: E1M4: The Grisly Grotto

Level: E1M5: Gloom Keep

Level: E1M6: The Door to Chthon

Level: E1M7: The House of Chthon

Level: E1M8: Ziggurat Vertigo

Level: E2M1: The Installation

Level: E3M2: The Vaults of Zin

Level: E4M5: Hell's Atrium

Level: E4M7: Azure Agony

Level: END: Shub-Niggurath's Pit

Level: E5M1: The Military Base

Level: E5M2: The Power Supply