Please include a meta viewport tag in your site at the very least. It seems like you use angular, and I'm sure there are useful plugins to make transition to mobile easier (such as http://mobileangularui.com/). Most people nowadays use mobile, tablet, and touch devices, and website design has now switched to a mobile-first approach. I think the loads of new game features and content can wait and that you guys should focus on a mobile design foremost. I myself am a web designer focusing on mobile-first approaches and have even looked into angular. I will be happy to help with a redesign if needed. Feel free to get in touch with me.

Other than that, this is a great idea and a great game. Keep up the good work! But what makes a great online experience is great UI and UX, and right not mobile is severely lacking.