The whole gaming marketplace is a huge business.
From purchasing to online communication, in-game rewards, and reviews.
Every part of this can be dealt with on the blockchain.
Earning reward points in one game, converting them to an intermediate crypto, and exchanging them for point in another.
Rather than using exchange services game developers could include standard conversion tokens, eg using TRON as an intermediate, conversion crypto.
Each game developer can simply add a conversion function for TRON to their in-game point system.
Buying the games has been difficult with the down turn in cryptos, but this should pick up as the whole crypto eco system lifts over the next year or so.
https://sludgefeed.com/five-video-game-retailers-that-accept-crypto/