Trap

From dodWiki

In The Dawn of Demise, both rooms and objects may be booby-trapped. There are a variety of traps which have effects ranging from causing the victim to be poisoned to causing damage to changing one's sex. Thieves and assassins can create traps and then set them for unwary mobs (or players, in the case of pkill). While it is possible for a trap to kill you, DoD does not have any unrecoverable deathtraps.