I don't think games are a good tool for educating adults about new concepts, they are time-consuming and distracting. You could use them to teach kids, but why would you want to teach kids about Bitcoin in the first place, it's not like they will be using it till they grow up.
Adults play games to relax and have fun, and educational games generally have poor gameplay, so I can't imagine such game being popular.
I disagree, I think it us a good idea to create a game that educates people about cryptocurrency because games can be fun and while having fun you can also learn something. For those who have not known bitcoin may find it boring to read and study bitcoin but if it's a game then it will be fun.