This is a really cool idea and it has been used in email marketing for a long time now. I can even share an article with you on this topic, check this page about gamification emails. I would say that one of the key benefits of gamification is that it catches the recipient’s attention and motivates them to actively participate. This can play to the advantage of your young business. You will get higher open and clickability rates compared to traditional email content. So, try to explore this topic further.