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Basically yea they are. It's hard to explain why exactly in one sentence. Here's a link to the official site.
https://www.cryptokitties.co/

You might want to do some research first and watch some vids about it. Maybe it's not your cup of tea.

I made an account now :D Don't have any kitties though :'(

Thats nice. I won another kitty contest today lol xD
Add me on FB or sth I'll explain more there.
Nicos Vachnadze

Sent a friend request :)