Club Penguin.lol.idk.i no some that are.like zwinky,there.com,secondlife.but club penguin is the only non-downloadable system i no so far.
well there are more. there is
clubpenguin
moshimonsters
dizzywood
smallworlds (1 of my fav)
there (i think)
secret builders
that all i could think of right now post more if someone else has any better answers than i do.
there is also planet cazmo it is not so popular more but im trying to make it more popular so please help
Well I know a few virtual worlds that don't need email. Like Howrse.com, ponyisland.net, and moviestarplanet.com.
there is mmorpg
I want a free virtual world where no email needed.
It is poptropica.
nijit101
McWorld and Poptropica are two.
roblox
HOMEWORK.
Xivio.com is great! Its a 3D no download free virtual world!!!
Most virtual worlds on the net require an email adress. This is because they require a small amount of personal information, like your age and gender, so they can provide you with apropriate advirtisements. In order for these sites to run, (especially if sign up is free) the only way they can run is by receiving money from these advirtisments. They may also need your email adress so that they can email you if there are any problems. For e.g. the site is being shut down, there is an error or you have simply forgotten your password. Another reason is for the security of their site. Giving them an email adress confirms that you have a real working account and your not some random trying to hack into the site. Giving these virtul worlds your email shouldnt endanger you or your personal information. If giving these virtual worlds your email address concerns you, i advise that you create another email address only for the use of your virtual world.
roblox. The email tab is optional,but it sadly needs download on mac or windows.
i only know potropica