HTML or Standalone?

We're trying to decide on an engine, and one of the big factors driving this decision for our team right now is whether we can build for the web. A native engine like BabylonJS, Phaser, or something like Unity could be best as we can export as html and embed directly in our entry page. But these engines can be limited, and we were thinking of learning to use Unreal. Unreal however cannot bundle for the web.

So I thought I'd ask the community, do people play games if they're download only?