The Dungeon of Doom is located at the top of a forest valley straight North of Lord British's castle. It conceals just the Mark of Kings, that can also be found in many other dungeons, therefore the game can be cleared without entering this dungeon.
Dungeon Doom was renamed "Cave of Death" in the NES version. Also, in that version it conceals the Silver Pick, an item unique to the NES that is necessary to obtain the Mystic Swords (i.e. the Exotic Weapons).
Maps
Legend:
G = Gremlin (steals food)
T = Trap
W = Strange wind (blows out torches)
X
= False wall
Floor
Map
Notes
Floor 1
Sign 1: "Dardin's Pit!"
Floor 2
Sign 2: "Secret slides!" k = Mark of Kings
D = Damage fountain
Floor 3
Sign 3: "Beware traps!"
H = Healing fountain
Floor 4
Sign 4: "Ever adventure!"
Floor 5
Sign 5: "Gremlins!"
H = Healing fountain C = Cure poison fountain P = Poison fountain
Floor 6
Sign 6: "Circle death!"
Floor 7
Sign 7: "Collasal [sic] cavern!"
Floor 8
Sign 8: "Traps to gold!" k = Mark of Kings NES: The chest in the South-West corner contains the Silver Pick.
