Are there any specific requirements for the game type beyond "tabletop RPG"? Any system / custom systems? What about more conventional board games, or some kind of RPG-board-game-hybrid?
I ask because I'm interested in games that are similar in spirit to RPGs but that de-emphasize the actual roleplaying aspect, or RPGs where there's less/no distinction between players and game masters, and other sorts of variations on the typical format.
So, I guess the question is how far can I push the definition of "RPG", or what are the essential elements of an RPG for the jam's purposes?