North Hollywood-based Disney Online said yetserday that it is developing a new, massively multiplayer online role-playing game based on the Disney theme park attraction "Pirates of the Caribbean". The game will debut in summer of 2006, and will be based on pirate adventures at land at at sea. The game will be available based on a subscription basis. Massively multiplayer games are growing in popularity, and allow users to interact with others in online environments, develop characters, and more.