For illustration, you may want to make 3D games. If that's the situation there is also WebGL, and that is a JavaScript API to render 2D and 3D graphics to the browser, using the GPU for increased overall performance. Our approach to HTML5 game development is anything at all but https://html5-game-development-se53074.suomiblog.com/about-html5-game-publishing-services-51013228