Guys, I don't mean to be rude, but your entire project already exists. It's called DMarket (DMT) and they've already partnered with Unity and were listed to Bittrex a few days ago.

Also, Refereum is very similar and used by hundreds of thousands of gamers daily. Their token is RFR. They are developing their API currently and this will allow game developers to integrate the Refereum reward system deeply into their games. Thus, rewarding achievements. Their employees reside from companies like Lucas Arts, Google, and Facebook so you're up against them.

Needless to say, though, since you've chosen to run against these big guys, you definitely have a shot at it. I watched your video. Your idea is phenomenal.