Startup Idea : An mobile app which can simply chat and play game

A summer weekend afternoon with my wife, she was browsing Facebook posts and I tried to interrupt her to get attention so I tried to send msg (LINE) to her and she just replied to me one sticker and kept browsing Facebook posts again. So, I just wanna get more interaction with her, it reminded me MSN could do such play gaming with others. But so far I couldn't find any mobile apps can do that, mostly only either chat or game. This idea is to create a mobile app which user can chat and directly play game within chat window, this game must be easy and fun. When you get bored or wanna do more actions than chat, you can just send gaming invitation to the user, and he/she will get push notification immediately and get interaction back immediately. It would be an intimacy increase with fun.