Gnosia is a sci-fi visual novel and social deduction story set aboard a spaceship where a mysterious alien lifeform—known as the Gnosia—can disguise itself as a human and eliminate the crew one by one. The protagonist, trapped in a time loop, must relive the same cycle repeatedly, gathering clues and learning to identify who among the group is truly human each round. As paranoia builds and alliances shift, the line between friend and foe blurs, revealing deep emotional stories behind each character. Blending psychological tension, isolation, and philosophical reflection, Gnosia turns the classic “Werewolf in space” premise into a haunting exploration of truth, trust, and identity.