IMVU

Very popular social game although it is a download it is well worth it and of course the space it takes up is only little, you would have to have a windows or ios mac computer for this to work.
This game is a great game for 13+ explore the detailed virtual world dress your character with some really great styles, pose for the camera and show them off in unique albums.
Get married start a family or just party all night long.

Membership is required for certain things but only for create and some actions.
Game is very addicitve.
There is loads you can do without membership.
You can do anything you want fight love play explore you name it.