5ced8212_World_Building_Tools__Tools_used_to_create_a_world
[Virtual world environment] Worlds Chat [Tools used to design avatars] Users have created avatars using their own 'hacks' see Creating Your Own Avatar and Other Activities in our chapter on Worlds Chat [Tools used to create a world] 
No public tools available, Worlds Inc. can make custom worlds
World Building Tools
Tools used to create a world