Vancian Magic is the common magic system used in most editions of D&D. You can go to almost any design circle who is familiar with D&D and use the term with most people immediately understand ...
In Dealing with players of vastly different skill levels?, I got into a discussion with @SevenSidedDie about characterizing Dungeon World as a story game. @SevenSidedDie stated that: @neontapir ...
What are "ashcans"? What are their purpose? Where does the name come from?