The gaming industry will definitely boost some coins in the future. I don't think BTC will be part of that nor will mining while playing games be big as the amounts are too small. there are several projets which reward through playing games ( such as refereum ) so this crypto integration is already happening. One project which looks very interesting is open platform who are gaining partnerships with gaming. They create a bridge between the user and the game developer and make it easy to add a crypto function (payment or reward) to an app or a game.