Septentrion is an action-adventure game that follows the story of a young boy named Shun, who lives on a remote island. One day, he discovers a mysterious temple hidden within the island's mountains. As Shun explores the temple, he must confront various enemies and challenges to uncover the secrets of the island.
The gameplay in Septentrion is fast-paced and action-packed, with an emphasis on exploration and combat. Players control Shun as he navigates through the temple, fighting off monsters and collecting power-ups to increase his abilities. The game features a variety of enemies, from giant spiders to treacherous traps, making each encounter unique and challenging.