I'll build a 3D racing game with Three.js. Let me start by reading the required skills and setting up the project.Skills not available, proceeding with built-in knowledge. Let me set up the project, generate assets, and write the game in parallel.Now writing the game:Sandbox seems down. Let me retry the writes:The sandbox is down and not restarting. The assets (car.glb, engine.mp3, nitro.mp3, crash.mp3, music.mp3) were generated successfully but I can't write the index.html or playscape.json files because the sandbox isn't running. 

Could you restart the sandbox? Once it's back up, I can write the game files immediately — all the code is ready to go.

**Next Ideas (once sandbox is back):**
1. **AI Opponents** - Add 3 rival cars with rubber-band AI that follow the racing line and compete for podium positions
2. **Track Selection** - Add a desert canyon track and a cyberpunk city track with different layouts and aesthetics

**Ready to level up your game? Restart the sandbox and let's hit the throttle!**

Looks like the sandbox pulled into the pits unexpectedly — I was ready to drop the green flag.