https://www.theverge.com/2018/7/13/17568766/mlb-cryptocurrency-baseball-game-summer

Baseball collectibles like cards and bobbleheads are being revamped for the 21st century — on the blockchain. Major League Baseball has announced that it is launching a crypto-based game that runs on the ethereum blockchain later this summer.

It’s a crypto-based version of the classic collectibles that’s similar to the most popular blockchain game CryptoKitties, where players can buy and trade cartoon kitten characters with ether. CryptoKitties has already made over $25 million worth of ether, making it a huge success. In the MLB version of the game, people will be able to purchase avatars involving some popular moments in baseball history. Those avatars can then be sold or traded, and users can earn rewards.