Torn City

http://www.torncity.com/register.php?XID=519425

Its a game where I am on the wrong side of the law.

I get to do all sorts of crimes.

The more crimes I do, the higher level I go.

Also, I get to attack other players to gain more experience.

With the money I make from mugging or doing crimes, I can upgrade my residence, open my own business, gamble or just buy powerful weapons to attack more people.

It might be just a game, but you need to strategize and be business savvy to be good in the game.