These Properties deal with Rooms.

Help topics available:

allow_pk	arid	author	beach	bridge
can_cook	cave	cliffs	cold	cultivated
desert	floor	forest	garden	grass
hills	holy	holy_ground	humid	ice
indoors	lake	magic	magical	meadow
metals/	mist	mountain	mud	no
no_/	obsolete	outdoors	plain	protection/
river	road	sand	sea	snow
square	swamp	temperate	track	unholy_ground
urban	warm	waterside	waterfilled	water
wind