Ancient Domains of Mystery/Gameplay

Chaos
Chaos is a fundamental force that corrupts the very essence of your being. You will also encounter other creatures affected by the horrible radiation of Chaos. As time passes and you head deeper into the dungeons, corruption intensifies and mutates you in various (mostly undesirable) ways. Too much corruption will transform you into a writhing mass of primal chaos and your adventure will be over. Therefore items which remove corruption are among the most valuable in the game. Noble heroes of Lawful alignment (which equates to "good" in ADOM) are more resistant to corruption than those who follow the Neutral way, who in turn are more resistant to corruption than Chaotic adventurers.