How to play blockchain games & blockchain game reviews, guides and tutorials. What are blockchain games? Blockchain games are any games whose backends partly powered by blockchains. They consist of a front-end and a back-end just like any other game, but the back-end includes blockchain technology as well. The main feature of blockchain games is the true ownership of in-game items by players. Collectible in-game items are stored on the blockchain as non-fungible tokens using ERC-721 standard.