Shogun: Total War is a turn-based strategy and real time tactics computer game released in 2000.
The main campaign of Shogun: Total War involves a player choosing a clan and moving to eliminate their enemies and become shogun of feudal Japan. Each faction controls various historical provinces. Each province allows for the cultivation of farmland, and the construction of border watchtowers and a castle. Certain provinces possess natural resources that require a mine to be constructed to tap into. Coastal provinces may also construct ports to increase trade. Each castle has space to expand with a variety of military buildings and dojos, which allow for specific army units and agents to be produced. However, each castle can only support a certain number of auxiliary buildings. Castles can be upgraded to increase their defences and resilience to a siege. The production of units and construction of buildings is limited by the amount of Koku the player has; koku is generated depending on the strength of the faction's economy and harvest. Units and buildings take time to produce; each turn represents one season.
During each turn, the player is able to move units about the map. Units come as either armies or agents and can only be moved to a province that borders the one in which they reside. However, both agents and armies can travel longer distances using ports, allowing them to move from one coastal province to another with a port in a single turn. Armies consist of military units such as spearmen, cavalry and archers. Should an army enter a battle, these units will be reproduced for the game's real-time tactics mode. Each army is led by a general that possesses an honour rating that rises and falls with the general's success or failure; if a general repeatedly endures defeat, they may commit seppuku. The faction daimyo and his heirs are also represented as generals—if a daimyo is killed and has no available heirs, the faction is eliminated from the game.
When an army is moved into an enemy or neutral province, it will engage in battle with whatever hostile armies already reside in the province. An army may also lay siege to a province's castle; after a determined amount of time, a castle's supplies will run out and the garrison will be forced to surrender if it does not break the siege or receive relief. A siege may cause damage to the castle's buildings, requiring repairs to be sought.
Several agents are available to each faction. The basic agent is the emissery, which can be used to negotiate alliances and ceasefires, as well as attempt to bribe enemy or neutral armies to join the player's faction. As factions build up their infrastructure, other agents become available, such as ninja and shinobi, the former assassinates enemy generals and agents, while the latter can spy on enemy provinces or perform counter-insurgency in home provinces. Each agent has an honour rating that determines how successful they may be at any particular mission. As the game progresses, the player will come into contact with European traders; first the Portugese Juisius, who will exchange arqebuses for money and the adoption of Chatholicism by the clan, and later the Dutch, who will sell arquebuses without requiring a conversion. If a faction changes from Budhism to Catholicism, it is given the ability to produce Jesuit priests, who in addition to acting as emissaries, convert the population, therefore making rebellions due to religion less likely.