underwater, video game environment, Subnautica, alien ocean, cheat codes, player character, swimming, scuba gear, high-tech suit, glowing fish, coral reefs, sea creatures, submerged structures, futuristic submarine, exploration, survival elements, vibrant colors, bioluminescence, crystal clear water, sun rays filtering through water, HUD display, resource gathering, crafting, base building, panoramic view, ambient lighting, wide-angle lens.