PlayKey is the first decentralized cloud gaming platform which launched in 2015. This technological invention is set to enable users to run games on low-tech computers. PKT was designed to satisfy the needs of miners and gamers, based on peer-to-peer interaction. The services it provides are built on the use of a smart contract system and the blockchain technology. The primary purpose of Playkey is to accommodate gamers with a reasonably-priced opportunity to play top-rated games without time or geographical restrictions. By connecting a device to the Internet, players buy keys for games and play online. Gaming is moving into the cloud, which turns out to be much cheaper than owning personal gaming hardware. The functionality of this framework allows commanding high-tech servers that run the game itself. Furthermore, Playkey allows free access to any game after key purchase while also providing private GPU owners with a new way to earn revenue without wasting it on PoW mining. PKT applies the Ethereum blockchain technology. As well as allowing investors to buy or sell cloud gaming subscriptions, the network also enables them to enjoy other services and future products of PlayKey. The platform is under further development, and the coin is active.