How do you think can bitcoin affect the companies/developers who manages online games if they want to be part of this? Will it be alright if they use this as part of their payment option on the game even if the rate of Bitcoin isn't stable?
There are some game developers that have their own coin now and some have upcoming ICOs. So you have a choice to use fiat or crypto. If you want to use cryptocurrency as a payment you can trade it to their coin.