Mask of Soul is a 2026 2D metroidvania action-adventure developed by XION ENTERTAINMENT and published by XIONPLUS. Set in an oriental dark fantasy world inspired by Korean mythology, it follows Cheong-oh Chasa, the gatekeeper of the Underworld, as he hunts escaped spirits beneath the Red Moon. The game focuses on precise parry combat, mask-switching abilities, exploration, and boss fights as the boundary between the living and the dead begins to collapse.