This is a remake of classic Atari Missile Command in 3D.
Model and texture files are loaded via HTTP request, so you need to deploy this page on a HTTP server to play it.
It won't run if you simply click on index.html.
Safari (tested with 11.0.2), Chrome (tested with 63.0.3239.84) and Firefox (tested with 57.0.1) have no problem running it under HTTP.
However, CrossOrigin asset under HTTPS is only allowed in Chrome and Firefox, if you run the game in Safari, no texture can be loaded.