City Stela is the core of the fortress. If City Stela upgrades, the max level of other buildings will be lifted and the number of soldiers for battle will also be increased.

Strife Coins are made in Mint. Upgrade Mint to increase its output speed.

Upgrading Bowman Camp will improve Bowmen's attributes. The level of camp decides the level of Bowmen.

Upgrading Spearman Camp will improve Spearmen's attributes. The level of camp decides the level of Spearmen.

Upgrading Trooper Camp will improve Troopers' attributes. The level of camp decides the level of Troopers.

Royal Hospital will treat injured soldiers. Upgrade it to increase its speed of treatment.

Drill Ground can improve soldiers' Defense. The higher the level, the stronger the Defense.

Courier Station will improve soldiers' speed. The higher the level, the faster the speed.

Tailor Shop can improve soldiers' HP. The higher the level, the more the HP.

Smithy can improve soldiers' Attack. The higher the level, the stronger the Attack.