1. Uploading to Your cPanel Subdomain
In cPanel, go to Domains → Create A New Domain (e.g., games.yourdomain.com). Open cPanel File Manager, navigate to that subdomain's folder, and upload this single index.html file. Both 3D Galaxy Air Hockey and 3D Wizard's Chess will work immediately in full-screen!
2. Adding More Games in the Future
When you build a new game (for example, cyber-racer.html), upload it into the same cPanel folder and add an entry to the GAME_CATALOG array inside this file with externalUrl: 'cyber-racer.html'. Clicking it on the front page will automatically open it inside the full-screen arcade stage!