I vote for posts I like. I like the concept, but there are litterally millions of people who thought of this already... Yet I have to see a reasonably realistic concept for where the money for this comes from.

Bitcoin is a whole other thing than such kind of in-game currency. You would need a reason for people to actually hold these currencies instead of selling them, because no one would actually keep them and everyone would sell them immediately after they obtained them otherwise, which would mean no one wants to buy the currency, so no one gets any real money (or their value in an other Cryptocurrency).

You just litterally stated an idea millions have stated already, without any explanation on how it would work. If you'd expand this idea a bit, I would definitely upvote :-)