Some Mafias have themes - either a fictional or a historically inspired setting, possibly pre-established by a book, a TV series, a movie or a game. The following situations are sometimes encountered and give rise to comments from the community: Someone decides to make a Mafia based around a certain theme and someone tells him that this has already been done. A short discussion ensues: who holds the copyright? Is possible to redo a theme keeping the original roles or redo the roles and game mechanics completely? What are the limitations on the game names? etc. Comments on the guidelines: