Submarine Simulator

Create an immersive Three.js submarine exploration game set in a vast underwater environment. The game should feature a detailed, accurate, and visually compelling submarine model that the player can control and navigate through the ocean. Include realistic underwater physics, smooth movement controls, depth changes, buoyancy behavior, and responsive steering.

The environment should feel alive and expansive, with nuanced details such as coral reefs, deep-sea trenches, shipwrecks, underwater caves, marine life, drifting particles, sea plants, and changing light conditions as the submarine descends. The lighting should be carefully designed, with realistic caustics, volumetric light rays from the surface, murky deep-water darkness, and functional submarine headlights that illuminate nearby objects without making the scene overly bright or washed out.

The submarine interior and exterior should be well modeled, with details such as portholes, control panels, gauges, sonar screens, pipes, rivets, ballast tanks, propellers, and engine components. The player should be able to switch between exterior third-person view, cockpit view, and free camera view to inspect the submarine and surrounding underwater world.

Gameplay should include exploration, navigation challenges, oxygen or power management, sonar scanning, collectible research samples, hidden wreckage, and environmental hazards such as pressure zones, mines, aggressive sea creatures, or narrow cave passages. The ocean world should feel mysterious but believable, with proper scale, smooth rendering, realistic movement, and strong visual atmosphere.

Prioritize high-quality rendering, believable physics, polished controls, accurate scale, and engaging gameplay. The final result should feel like a complete playable submarine exploration experience rather than a simple demo.