Mega-Dungeon Monday links - New Castle Greyhawk Analysis (and more!)

While I'm still getting back on the post-holiday track for blog writing, I thought I'd mention some interesting mega-dungeon and adventure design discussions going on within the old-school folks I follow:

1. Daniel "delta" Collins has performed some new analysis of the first level map and key of Gary Gygax's Castle Greyhawk @ https://deltasdnd.blogspot.com/2020/01/subterrane-surveys-gygaxs-castle.html, with some interesting results---well-worth the read!
   
2. Some excellent discussion about adventure module book design and usability in the comments of Bryce Lynch's recent review of the The Anthropophagi of Xambaala for Astonishing Swordsmen & Sorcerers of Hyperborea, one of my favorite creations from the OSR
   
3. Illusions are in the air!  Anthony Huso has continued his examination of house rules and interpretations to make sense of of illusions at his AD&D table, while over on Dragonsfoot a timely discussion arose in response to how mixed saving throws are adjudicated for a group of PCs facing down illusions
   
4. Trent Foster has outlined the scope of the ongoing revisions to his AD&D Companion, now entitled The Heroic Legendarium!---an exciting new expansion to the core of AD&D's rules that I'm planning to introduce into my new Greyhawk Campaign :D

Your regularly-scheduled Mega-Dungeon Mondays will reappear next week =)

Allan.