I've just added an additional feature where monsters might be asleep when you enter a floor. This gives you the option to creep around them without engaging. The help section explains more. Whether or not monsters are asleep, is determined randomly, with all monsters sleeping, no monsters sleeping, or some monsters sleeping.  Undead monsters never sleep. 

Whether or not you can creep past them depends on your hero's dexterity and how many tiles the hero tries to move.

The help section has been expanded a bit more to explain some of the underlying mechanics and there have been a few bug fixes and tweaks while I was under the hood.

Anyway, let's hope I haven't broken it.