Robbie Ferguson is deep in this stuff as one of the development partners (IMX provides key technologies that makes the marketplace green and cheap trade on). Here’s one of his interviews to start. www.youtube.com/watch?v=fAjYtL6SkiU
However it’s an unrealized technology, and kind of a moonshot admittedly. If anyone can pull it off it’s GameStop IMO. There’s not another global video game sales company with a vested interest in reselling digital games - the others like steam are happy to keep things the way they are, naturally (basically, DRM and no resale).