Large dungeon complexes and even “megadungeons” have become a stable of fantasy RPGs. But they are difficult to map out, since they tend to be complex, three-dimensional structures. While mapping them in 5 ft. squares may be possible, that doesn’t give a good view of how all the different locations connect with each other.
So I am curious: What are your favorite visualizations for megadungeons? How did they help you as a game master (or player) to understand how their whole environment is structured?
If I was going to actually map one out, I’d just do it like the tube map. Point to point connections that don’t correspond to real space, just nodes that indicate how each “room” or area connect. If necessary, colour code them by depth so I know when connections should involve a staircase/drop/ladder etc.