The RPG theory ship sails on unbidden, even as RPG networks of practice seem to be drifting apart. In November, there was a great post over on The Dododecahedron which bucked the trend and pulled theory work from outside of the author’s primary discipline, the OSR. Starting from a description written by Vincent Baker about the PbtA ‘conversation’, Dododecahedron author Rowan describes OSR play as an onion with four concentric layers: Character on the outside, then working inward to Mechanics, Procedures, and finally Adventure. Adventure is in the middle as the diegetic ‘fiction’ that the players are engaging with is the source of truth for OSR play. From there are Procedures, which describe the rules for how to go about play; that is to say, what travel looks like, or when random encounters occur, or how to track consumables. The next layer out is Mechanics, which describe the “rules” as most RPGs understand them; this is where initiative, ability checks, and all those specific bits live. Finally on the outside is Character, where elements like attributes, experience points, and skill ratings, all the things that make characters unique, sit.