underwater scene, alien ocean, survival mode, player character in diving suit, exploring, vibrant coral reefs, bioluminescent plants, futuristic submarine, sea creatures, schools of fish, survival equipment, handheld scanner, resource gathering, freedom mode, no hunger or thirst, relaxed exploration, clear blue water, sun rays filtering through water, 3/4 view, ambient lighting, wide-angle lens, high-resolution textures, realistic water effects, immersive environment, serene atmosphere, expansive seafloor, underwater caves, rich marine life, soft shadows, dynamic lighting, panoramic view.