Players could assume one side of the Pacific Theater of Operations during World War II, acting as naval commander, organizing fleets, building new ships, appropriating supplies and fuel, and even engaging in diplomacy with other countries.
The player can choose one of several World War Two battles to simulate, or could control the entire Pacific campaign well before the Japanese attack on Pearl Harbor.
The other scenarios begin in the midst of a certain major Pacific conflict, where the goal is to capture or defend a certain port or sink or protect a number of enemy ships.
The player has the option of playing as one of the two major World War II Pacific maritime powers: the United States for the Allies, or Japan for the Axis.
For instance, if the United Kingdom breaks off from the Allied forces, the US will lose all British ships from their fleet, such as the Hermes.
The countries available as allies are: Each power starts out with control over a number of Pacific bases depending on when the scenario begins.
During the turn, aircraft, fuel, and materials can be assigned to any base, but depending on the safety and distance of the trade route, some resources may not arrive.
Air and Sea abilities affect the actual combat performance of ships and planes under that commander's control.
War is an overall rating, which is useful when it comes to convincing the Army and other military officials to agree with your submissions for objectives, budgeting, and industrial production.
The music was composed by longtime anime musician Hiroshi Miyagawa, who wrote a completely orchestral score.
The soundtrack was recorded with the Tokyo City Philharmonic Orchestra featuring soprano voice of Kazuko Kawashima among July 18-August 4, 1989.
An album CD titled Teitoku no Ketsudan was published by KOEI Sound Ware and distributed by Polydor K.K.
This soundtrack has the honor of being the first in-game orchestral score for a video game in history, a milestone achieved in April 1990 when it was released on CD-ROM for FM Towns.
In fact, the previous version released for PC-88 already used the Teitoku no Ketsudan album synchronized with the game taking advantage of Sound Ware system made up by KOEI.
While criticizing the "inadequate" documentation, it reported that the game's randomized campaigns provided "200-300 hours of play time—more than can be had from any other comparatively priced cartridge".