The latest expansion for Paradox Interactive's Crusader Kings II is out today. It's the third expansion for the dynasty simulator (that doesn't sound much fun, but it is) and it will let you play as "a Patrician" in one of the Merchant Republics (Venice, Genoa, Pisa, the Hanseatic League or Gotland). More details can be found here and Paradox are taking questions regarding the new DLC here.