It is of no surprise that even in 2019 the gaming industry has not found its touch with Bitcoin or Crypto Currencies in general. There are many reasons for them not indulging into the crypto market though.
The crypto currency market is highly volatile. The prices fall and rise too often and that is dangerous for any business accepting them as a mode of payment.
Steam tried to give the crypto game a try but it badly failed because the transaction fees for Bitcoin rose from $0.20 to $20 in just a week.
Although all these factors hinder the gaming industry from including crypto into their systems, I am pretty sure something is being worked on to overcome this problem. After all, the world is now adopting the inevitable phenomenon that is Bitcoin and Crypto.