A online game use bitcoin as payment?
Yes! That would help because most of the people who are familiar on this can easily cope with the proposal for every transaction. And maybe all gamers will be using bitcoin right now!
here in our country we have that kind of application which is you can use bitcoin to buy game credits. It is very possible as long as you have a reliable site or application that is accepting bitcoin exchange with game credits.
what would be the point of that?
you are just taking an extra step. why not just play with bitcoin directly? and that is what all the online casinos i have seen have been doing. you go in, deposit some bitcoin, play, and in the end withdraw all your funds if you want.
buying "game credit" means you deposit bitcoin once, buy credit, then play, and in the end you have to convert it back to bitcoin to withdraw! and how will that be calculated? based on USD value of bitcoin or 1:1 with bitcoin