Thanks for playing! I think from comments here plus some other playtesting folks have done, this might be too hard. The creatures are pretty relentless once you're in their field of awareness, but I think a bigger problem is that they can respawn pretty close to you after killing you once, which I thought I had fixed, but perhaps not. That especially hurts if it happens when you have all the treasure, because you suddenly lose two and have to go search the house for them again. Perhaps I'll give it some tweaks and post an update to the BBS in the future.
EDIT: The enemies actually also constantly move, so there's no real way to predict where they'll be. They either shamble around randomly if they don't see you or follow a path to you if they do, and they recheck their field of vision pretty frequently.