Virtual worlds for tween girls?

I'm not a big fan of just plain dress up, but i hate when you can't customize your avatar. I want free games that are online, not one of those ones you download like wizard 101 or something. I hate when games make you pay money to access most features. I currently play minecraft, clubpenguin, roblox, secret builders, and gaia. It's getting pretty boring. I like action and adventure, like rpgs, but i don't like when there are multiple quests. I would prefer a game without major filtering (like build-a-bearville). Does anyone know a good game for me? Please describe the game if you can. (I would like pixie hollow if it wasn't shut down, and possibly toontown)