The Sea Emperor Leviathan is the largest living creature in the video game Subnautica. Encountered deep within the Primary Containment Facility at a depth of 1,400 meters inside the Active Lava Zone, this colossal organism is sapient, telepathic, and entirely passive toward the player. Physical Characteristics Size: Reaches lengths between 160 to 200 meters. Appearance: Pale brown armor plating accented with shades of blue and green. Head: Small, peculiarly shaped snout featuring two striped antennae with glowing green lures. Eyes: Four binocular eyes that cast a distinctive cyan bioluminescent glow. Propulsion: Seven long posterior tentacles and paddle-like forelimbs resembling a sea turtle.Encountered deep within the Primary Containment Facility at a depth of 1,400 meters inside the Active Lava Zone, this colossal organism is sapient, telepathic, and entirely passive toward the player. Reproduction and Biology Unlike most complex fauna on the planet, the Sea Emperor reproduces asexually. After the player successfully hatches the eggs, the babies travel through a nearby teleporter archway. Over time, these babies migrate across the crater and mature into Sea Emperor Leviathan Juveniles within biomes like the Grand Reef, Dunes, and Crag Field. Shortly after fulfilling her life's purpose and witnessing her children hatch, the elder Sea Emperor peacefully passes away from old age.