This chain of province speciality buildings can be developed to either improve overseas trade income or increase the experience of locally-recruited ship crews. This chain of province speciality buildings produces income and reduces the cost of recruitment in the same province, also providing the iron commodity that can be traded. This chain of province speciality buildings improves the quality of all monk agents and warrior monk units recruited here, and is therefore of limited use to Christian clans. This chain of province speciality buildings improves your clan's income. The craftwork chain can also be used to improve the quality of bows, giving a bonus to all bow units recruited in the same province.

This chain of province speciality buildings produce the craftwork commodity that can be traded and is required for the construction of certain other buildings. The highest level koryu buildings can also produce naginata hero, onna bushi, and tetsubo warrior monks. This chain of buildings enables recruitment of the old-style, mostly naginata-armed troop types, also producing warrior monks when used in combination with Buddhist buildings and naginata cavalry when combined with pastures. It is the provincial version of the state academy. This chain of province speciality buildings reduces the time required to master arts.

There are two sub-chains within it: one focuses on public order and siege defence, the other recruitment and replenishment of armies. A government building cannot be demolished. This chain of buildings is the centre of government within a province. There are two sub-chains within it: one facilitates long-term growth, the other short to mid-term wealth. This chain of buildings enables the recruitment of junsatsushi and provides a major contribution to province wealth. The clan chain of buildings enables recruitment of shirabyoshi agents, increases taxation within its province, and spreads your family's influence to nearby provinces. This chain of buildings enables recruitment of the new samurai troop types, including samurai heroes, also producing samurai cavalry when used in combination with pastures. This chain of buildings improves your recruitment and replenishment capabilities, and can be specialised to improve the statistics of specific units. Those buildings higher up the chain provide warrior monks with greater experience and increase the happiness of a province's population. This chain of buildings enables the recruitment of sou agents and, in combination with a koryu dojo, warrior monk units. They are also the chief consumer of food in a province, so if farm building levels are not in step with castle size there will be food shortages. Larger castles are more difficult to assault and spawn a larger defence force of samurai retainers and women. Each level of castle building increases the size of its castle town: providing an additional slot on which to build, enabling the recruitment of basic ashigaru units and determining how many units can be recruited there in each turn. The castle is the heart of the population and public order's main controlling factor.

Shogun 2 rise of the samurai guide