Well, this is interesting. A new kid on the block that is not an open simulator. Nothing to install, just use Firefox or Chrome (not IE, which arrogantly does not properly support various standards) You can log on anonymously or authenticate using a Facebook account (assuming you fit Facebook's criteria of a real person, smiles; Desdemona does not and no longer has access) by going here:
It has a remarkably flexible scripting language.
If you'd rather read about it than be there (smiles), go to this web site