The virtual world of Second Life is now free. It’s an interesting place in that it’s not so much a game, maybe more like a chat room on steroids or something. If you want to ride a motorcyle you can or do many other things. Most of all, Second Life is a game for creators.
And some folks are even making real money in Second Life by creating things to sell (land, homes, objects, clothes, etc) by getting people to pay virtual money for the items then exchanging this virtual money for real money. Pretty amazing.
Check out this one gal that designs clothes and makes a living selling this virtual clothes online. I think she was making some pretty good money each month.