In the 17th century, a cross-tribal alliance was formed in the midwest area of Taiwan called "Kingdom of Middag". The King maintained the peace across the kingdom and built up close partnerships among all tribes by sharing the hunting fields, frequent trades for the needs, and respecting the spiritual ancestors.

In Kingdom of Middag, players are the leader of their own tribe who tries to lead their people to a fruitful harvest and glory. By sending tribe members to the hunting field, Tool Hut, Trade Hut, or Worship Hut, players will gain different preys, improve their hunting skills, or trade preys for victory points. The dynamic changes in the hunting field challenges players to optimize their action timing to gain the most useful resources and turn them into VP efficiently. The player who earns the most VP will become the new king and transcend the greatness of Kingdom of Middag.