The Mafia Boss

The Mafia Boss is a text-based MMOG playable at themafiaboss.com. There are currently over 900,000 registered users. The game is free to play, but players may purchase "turns" to build more in-game resources.

Also Some other games that might interrest the same users with different strategies and aspect:

http://www.themafiawar.com This is a nice game with a lot of prizes easy to win and very good layout.