Today is a good day to be a Facebook mafiosi. Zynga's Mafia Wars 2 was originally expected to launch within the next few weeks, but the game has already gone live on Facebook and is ready for users to start building their massive criminal empires.

We've already taken an in-depth look at what Zynga's bringing to the table with their first direct sequel, but here's a quick refresher for veterans and newbies alike.  

Read More: Facebook Gangsters Rejoice: Zynga’s Mafia Wars 2 Goes Live