This is where the aspect of a social network comes in for the roleplayinggames. Let's start with the obvious one, the RoleplayingGames. Before you know it you'll have a new friend and roleplaying groups also often have their own social network of...
Live Action RoleplayingGames (LARP) Within a 'massive multiplayer game' like Second Life we may not automatically think of there being other games to play, aside from exploring the virtual world itself.
The word lists from each step are in the spreadsheet; here's the final list:
dungeons & dragons