The Death House introductory adventure for Curse of Strahd already has strong Addams Family vibes.
Suburbian horrors like normality, pastels, superficiality, social conformity, and conventional "family values."I want to build a dungeon based on the Addam's family.
What does it need?

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.