contatesteparawebsites-commits/Deadzone ? reverse-engineered prompt

Build me a simple browser game where you’re in first person and have to survive endless waves of zombies. It should feel like a 3D zombie survival shooter, with the player moving around in a dark horror style map, shooting zombies, and trying to stay alive as long as possible.

Please make it playable straight in the browser from a single HTML file if you can, and use JavaScript and Three.js for the 3D part. I want basic controls for moving, looking around, and shooting, plus zombie enemies that keep coming in waves, a score counter, and a game over state when the player dies. Add a restart option so I can play again without refreshing the page.

Keep it fun, simple, and responsive, with a creepy atmosphere and clear feedback when zombies are hit or killed. If you need to look up current docs or best practices for the 3D setup, go ahead and do that.