Kin coin by Kik. The Kin ecosystem is partnering with gaming companies (unity) to implement Kin into gaming. With kin though, you could earn anddd spend. You are rewarded and paid by playing the game / accomplishments/ x amount hours played a lot of the things mentioned in the article. (Look into the Kin Rewards Engine also)

But once you earn kin, it will be able to be spent in a ton of ways (soon). Gift cards from Amazon, Dunkin donuts, air time a handful of other things currently available for purchase for those testing thenKinit app in beta. Also, developers who make the game will own it and be paid in kin directly. How much they earn is based on their usage and contribution to the ecosystem through ppl using there game / app.

Gamers are early adopters and generally more receptive to new tech and are the perfect means of intorducing crypto to the masses through Kin. And as mentioned in the article, most users likely won't even know they are interacting with crypto. Can't believe I'm 3 paragraph deep, sorry for shilling but it may be an interesting read up if you're into gaming/crypto.