Koku is rice money and is the currency in the game.
Taxes are automatically collected at the end of each year.
The following list shows the yield in terms of koku for various buildings and fields.
The following list shows how many resources are to be found on the map:
Silk is primarily found in the eastern part of Honshu island, while tea can usually be found in the south of Japan. Most ceramics can be found in the provinces of Echizen, Owari and Omi, but ceramics can also be found at other places. Lacquerware is quite scarce and can only be found on some forest terrain.
Japan is frequently ravaged by disasters such as typhoons and earthquakes. These disasters can cause destruction to buildings.
Typhoons hit Japan each year, but these typhoons are more common to occur on Kyushu and Shikoku island. Typhoons often destroy town dwellings and fields. Typhoons only occur in the summer or autumn season and they often bring a lot of rain near the grid where they occur.
Earthquakes only destroy town dwellings and not fields, but earthquakes can also level larger buildings such as temples and castles.
The presence of certain buildings in a town means that town will produce weapons. Weapons together with villagers are required to recruit units.
The following list shows the various weapons in the game and the buildings that are required for the production of certain weapons.
Stables are required for the production of horses. All mounted units require horses.
Ownership of an iron sand mine gives all your katana wielding units an extra hitpoint.
The following list shows the buildings required for the presence of certain villagers.