While the original site might be blocked, the mirror on GitHub is often alive. They specialize in newer .io games (like Drift Hunters and 1v1.LOL) ported to static HTML.

The vast majority of games on these portals are unlicensed copies of commercial games.

GitHub Pages (indicated by the github.io domain) is a free web hosting service provided by GitHub. Many developers use it to host simple, open-source, or educational game projects. Because GitHub is a legitimate platform for developers, it often bypasses generic website blocks, making these hosted games "unblocked" in restrictive environments.

Unlike Flash games (which are dead) or Java applets (which are security risks), HTML5 games run purely in your browser. They do not require installation, downloads, or special permissions. On github.io, you will find millions of lightweight HTML5 games that load instantly on a school laptop.