Follow the Leader: Possibly. At the time that Kingdoms debuted, Big Fish Games was offering several Freemium games connected to some of their more popular series, presumably as a way of increasing player interest (and making extra money from in-game purchases). All of these have since been discontinued.
Limited Special Collector's Ultimate Edition: The first two games were originally available in Vanilla Edition versions only, but starting with Goblin Kingdom, the games have also been released as these. They contain bonus gameplay and other assorted goodies.
As of 2022, Dreamless Castle and Moonfell Wood have been remastered, with enhanced graphics, and the remasters are available in both the vanilla version and this.
