Cruiser Warfare gives the Great War at Sea series its greatest scope yet: the entire world. British, German, Japanese, Italian, Austro-Hungarian, Russian and Dutch ships begin as they did in August, 1914. The German player must disrupt Allied commerce and try to get the cruisers home if at all possible. The Allied player must track them down and destroy them before they can wreak havoc.
The world is divided into sea areas, with modified search rules allowing German and Austrian ships to look for prey, and Allied ships to hunt them. Once contact is made, combat is resolved using the standard game rules (or the variant advanced tactical rules from the Dreadnoughts book).