Whimsy
A fair bit of His Majesty the Worm is whimsy. This is an RPG that knows it’s an RPG. You play adventurers who know they are adventurers. It is playful with its tropes. It’s unpretentious. During a game, both players and GMs will deconstruct and reconstruct common dungeon delving tropes. This should be fun. This should be delightful.