Midway contains 50 scenarios of naval action the Pacific Ocean waters during World War II in 1942. The scenarios cover both historical and hypothetical engagements as the Japanese try to maintain their offensive and the U.S. attempts to stop them.
Midway is part of the Second World War at Sea game system. It is comprised of a series of modules that use the same core rules but focus on different theaters of the war.
Each unit represents a capital ship or a squadron of destroyers. There are two scale maps: operational and tactical. Fleets move around on the operational maps until contact is made, and then battle is resolved on the tactical map. Each operational square represents 36 miles of terrain or water.
The Second World 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.
Midway is a core game and complete by itself.