http://www.secondlife.com

On a basic level - it's a 3d VR chat environment.

But what I like about it is that you can create art galleries, casinos, night clubs and anything else that would bring users and based on the user volume - the game creators pay you.

Also, you can charge people to visit your galleries, buy the images in your galleries to display in their VR homes and stream video like a VR movie theatre.

If you build a casino with poker tables, slot machines and any other game type, the user pays you per play based on the pre-set values. (Down side, if they win it comes out of your money)

They have free accounts so you can see if it is something you like and has been featured in Wired, USA TODAY and many other news sources. The user base is HUGE!

If you get into the 3d modeling aspect (in game) you can also open stores and people will buy your creations. (House, car, skins, textures, avatars and anything you can thing of.)

Another huge draw for the game is the action scripts. Users can have visual cyber-sex, make other users slaves and have them do your every command with a few text triggers or act out, play and even kill other users in game worlds build to emulate Star Wars, Star Trek, Gor and anything popular to attract new users.

At first you won't know many of the commands and building objects will piss you off but after 2 days you will have it down.

If you get into it at all - let me know and I'll meet you in game. Show you around.