ToME: the Tales of Maj'Eyal

Hitting TAB to list monsters in sight shows also monsters not in LoS (and even out of light radius).

In the attached screenshot only the skeleton warrior is visible; rat and mold are behind the upper and left corner, in the dark and out of LoS. It is behaving like a sort of sense.

They are within 20 squares of you, and would be visible if the squares were lit, however they are out of light radius and the squares are dark.