Sony Online Entertainment Inc. (SOE) has announced that Pirates of the Mysterious Islands, the digital expansion of the Pirates Constructible Strategy Game (CSG) Online is now available for digital download. Mysterious Islands adds new game content inspired by nautical science-fiction, such as the works of Jules Verne, and includes characters and ships such as Captain Nemo and the Nautilus. This expansion brings stealthy submarines and cutthroat mercenary ships into the online digital battle, and introduces a new terrain type - the mysterious island - where pirates may find untold fortunes or unknown perils. Single digital game packs are available for $3.99 each, and include all the tools necessary for play online. Digital game pack boxes, which include 18 digital game packs of Pirates of the Mysterious Islands, are available for $65.00.