The Tower of Druaga: The Aegis of Uruk (2008)

Every five years, during the Summer of "Anu," the demons in the enigmatic Tower of Druaga become vulnerable due to a divine spell. Seizing this opportunity, King Gilgamesh of Uruk launches an invasion to unveil the tower's secrets. After decades of battling demons, the Uruk army establishes Metz Kier, a fortified city on the tower's first floor. The narrative centers on Jil, a determined warrior, who, alongside newfound allies, sets out to locate the legendary Blue Crystal Rod hidden at the tower's peak. However, rival factions, including Uruk itself, are also in pursuit of the powerful relic for their own ambitions.