This strategic tower defense game challenges you to repel waves of enemies over 45 rounds and achieve unification. Experience key historical events from the Yellow Turban Rebellion to the founding of the Qin Dynasty. Using gold earned from defeating enemies, you can acquire new units through random draws. Combining identical units to upgrade them to higher ranks provides a deep strategic depth. Build the optimal defense line by combining three unit types: Infantry (close combat and high defense), Archers (ranged attacks and fast attack speed), and Soldiers (ally buffs and strategic support). A five-tiered system (Common → Advanced → Heroic → Legendary → Mythic) offers endless combination possibilities, requiring strategic thinking from a stable early-game build to a powerful late-game combination.