Captain Sonar: Operation Dragon, an expansion for Captain Sonar, consists of an "Operation Dragon" campaign as well as a "Custom Pack" toolbox. A few details:

• In search of rare minerals, the crews dive to never-before-seen depths where the laws of physics reach their limits. In the "Operation Dragon" campaign mode, teams can play seven consecutive missions on ever-new nautical charts, using expert characters with abilities exclusive to them to make it through this adventure. The result of each game affects the next mission...

• The "Custom Pack" toolbox contains four new modules with new options to vary your gaming experience, such as "Armada" mode, new second stations, and new mechanics stations.