I am working on an Arneson style megadungeon

[Rafael]

I seriously would do it the other way round - define your necessities, then go from there. Arneson essentially worked on a fixed premise as well (orcs run over a castle from the inside), and built up on that. - As to *dungeon conventions*, I don't really think they exists, personally. - Not saying I am not curious to see how this develops, but I wouldn't really know how to start with it.