>>95954176
>>95954314
>They don't have to take a turn just to map the room: mapping is assumed to be automatic in normal cases
Wrong. Picrel

>>95954605
>What if torchlight doesn't allow them to see the end, or around a corner?
Generally speaking, you give a first description of the room with what they can see from the door, and a second description when they say they enter room. Do NOT assume they enter the room unless they tell you, because there could be traps. And if you only ask when there ARE traps, you're giving away their presence.

>>95954870
>how to describe irregular caves, like the lower level in B1?
To the best of your patience and ability.