Now that we have HTML5 extension support and the new html5.* namespace I believe we’re one step closer to proper messenger games. But I’m concerned that application size might be a problem. The Defold engine is quite lean compared to many others, but it still contains a bunch of stuff that you probably don’t need in a messenger game. We’re experimenting with a more modular engine where some parts can be treated as extensions and become excluded if they aren’t needed (for instance physics engines).