Romance of the Three Kingdoms: Hadou’s New Season “Ryuki Renkyō” Overhauls Siege Warfare on September 17

Koei Tecmo’s mobile strategy game Romance of the Three Kingdoms: Hadou will begin its sixth-anniversary season, “Ryuki Renkyō,” on September 17, 2026. The update revises siege battles and introduces the Engineer troop type, the second new troop branch, which is strong against shields.