Xivio is great! Its a 3D no download free virtual world
Here are some more games:
Impressivetitle
wolfquest
sifaka
wolfhome
Some other great, free virtual worlds are:
My Favourite: Habbo Hotel
Moshi monsters
Viz woz
Cafe life (with facebook)
Xivio.com is great! Its a 3D no download free virtual world!!!
wizard 101
Try Xivio.com, its a free 3D virtual world! No download too!
secretbilders
nijit101
It is poptropica.
animal jam or you can buy minecraft for £17
here are 3 jumpstart free realms clubpenguin
Meez,smeet... i forget the rst
Free Realms is my favorite, it's fun, free, and awesome!
roblox
One is girlsgogames.com. Those are just games. Virtual worlds? I am not sure if this is correct, I hear habbo.com? Best I could do sorry.