Cavernous levels are levels that feature large circular rooms occasionally interspersed with short connecting corridors. Cavernous levels tend to be considerably more dangerous than normal levels because monster generation rate is much faster, and it is easy to get surrounded. Tension rooms are never generated in cavernous levels.[1] Although the design of cavernous levels is not fixed — they appear to be modified regular levels — their locations generally are. The following is a list of all cavernous levels in ADOM: