===In-game appearances===
*{|border="1" cellpadding="4" cellspacing="1"|+|'''Dimension of the Doomed'''the mystical past comes alive...|Slipgate Complex(E1M1)''Track 5''|Castle of the Damned(E1M2)''Track 7''|The Necropolis(E1M3)''Track 8''|The Grisly Grotto(E1M4)''Track 4''|Gloom Keep(E1M5)''Track 1 - during demo rolls immediately upon game launch, fourth deathmatch level, never in single-player levels;10''|The Door to Chthon(E1M6)*''Track 3 - starting area ''|The House of Chthon(E1M7)''Track 6''|Ziggurat Vertigo(skill/episode selectionE1M8), every sixth level ''Track 9''|-|'''The Realm of each episode Black Magic'''ancient castles and strange beasts ahead...|The Installation(final of thirdE2M1), final boss battle;*''Track 5 - first levels ''|Ogre Citadel(E2M2)''Track 7''|Crypt of every episode, third deathmatch Decay(E2M3)''Track 8''|The Ebon Fortress(E2M4)''Track 4''|The Wizard's Manse(E2M5)''Track 10''|The Dismal Oubliette(E2M6)''Track 3''|The Underearth(E2M7)''Track 6''|no level |- all these share human military design;*|'''The Netherworld'''primal fear in a strange dimension...|Termination Central(E3M1)''Track 5''|The Vaults of Zin(E3M2)''Track 7 - second levels ''|The Tomb of every episode, fourth level of third;Terror(E3M3)*''Track 8 - third levels ''|Satan's Dark Delight(E3M4)''Track 7''|The Wind Tunnels(E3M5)''Track 10''|Chambers of every episode;Torment(E3M6)*''Track 3''|The Haunted Halls(E3M7)''Track 4 ''|no level|- fourth levels |'''The Elder World'''your worst nightmares come true...|The Sewage System(E4M1)''Track 5''|The Tower of episodes one, two and four, third secret level, rest Despair(E4M2)''Track 7''|The Elder God Shrine(E4M3)''Track 8''|The Palace of deathmatch levels;Hate(E4M4)''Track 4''|Hell's Atrium(E4M5)*''Track 10 ''|The Pain Maze(E4M6)''Track 3''|Azure Agony(E4M7)''Track 6''|The Nameless City(E4M8)''Track 9''|- fifth |Deathmatch Arenaand special levels |Place of every episode;Two Deaths(DM1)''Track 4''|Claustrophobopolis(DM2)''Track 4''|The Abandoned Base(DM3)''Track 5''|The Bad Place(DM4)''Track 1''|The Cistern*(DM5)''Track 6 - seventh 4''|The Dark Zone(DM6)''Track 4''|Introduction(finalSTART) levels of episodes one and four, second secret level;*''Track 9 3''|Shub- eighth Niggurath's Pit(secretEND) levels of episodes one and four;*''Track 3''|}''Track 2 - '' plays upon completion of every single-player each level when statistics are shown (time spent, secrets, kills);Full titles of game areas are on individual track pages.
==Credits==