Mediterranean is an operational and tactical game of naval combat using the Great War at Sea system. The game covers actions in the Mediterranean, Adriatic and Black Seas between 1912 and 1923. There are 70 scenarios that take place during World War I, Balkan Wars, the Italo-Turkish War, and hypothetical wars that nearly happened, but fortunately didn't. Ships from England, France, Germany, Italy, Turkey and a host of minor countries are included.
Great War at Sea is played on two maps: operational and tactical. Fleets move on the operational map until contact is made. At that time, ships of the respective fleets are put on the tactical map where the fighting is resolved ship to ship. All capital ships are portrayed, as are squadrons of destroyers. For World War II fans, the Second World War at Sea system uses similar rules. Players who master one system can easily learn the other.
The Great War at Sea system is vast, with many modules available. Each module focuses on a particular theme and provide counters, maps and scenarios to play. There are two types of modules, the core and the supplements. Core games are complete by themselves, with everything needed to play. Supplements expand on the core modules, bringing new scenarios and unit types to the game, but require one or more core module to play.
Mediterranean is a core module. It contains everything needed to play.