How can I run my game on the web?

I am researching on X3D and Xj3D, but the documentation does not help much.

Blender used to have a browser extension, but they took it down for security reasons. You might be able to find it somewhere on the web.

yes, it is called burster:
http://geta3d.com
plays 2.49 and 2.5

ok, thank you, was of great help