You know neopets? Its a great place where you first create a pet, and then you have to feed it, train it and buy stuff to it, and you pay with neopoints, which *drumroll* you get from playing games. And seriously, there is
really much things to do!
You can also battle with your pet!
www.neopets.com
And if you like manga, you can sign in
go-gaia But it's down often, so don't be confused if you can't get there.
There you can make a guy/gal and earn gold by doing something in gaia. With gold you can buy clothes to your bloke.
Less things to do than in neopets, but still fun.