Does anyone know any online games that you can talk with other people?

I have been looking for an online games where i play games, earn money, and buy things in the game. I want one where i can also interact with people alos playing the game. I have played vmk, but it is to childish, I have played club pernguin but it is to dum. And i have tried bang howdy but there is not much to do. And runscape i find weird. Does anyone know any games?