Those who worked in game companies ACTOZ SOFT and NEXON MOBILE who are familiar in Korea have entered the block chain market. The block chain technology is a GSTAR block chain that is specialized in gaming, they will be creating platforms and applying them to games. The GSTAR block chain is a joint venture between Korea and Japan. It is said that KAN GLOBAL Co., Ltd. of Japan will be the center of the game chain and will incorporate block chain technology with game developers in Korea. The game is available to anyone in the world, and the GSTAR block chain is a system that makes it easy to pay and transfer anywhere in the world. The GSTAR block chain is applied to a game that can be enjoyed for a while in the time of a moment in everyday life such as the subway, the restroom and the waiting time, and it is preparing a system that can be used in real life with the reward obtained through it. In addition, the GSTAR block chain is not just used for settlement, but also introduces a system to compensate for the game by introducing a different method from the existing one, and introducing a competitive framework for the game and donating a portion of the revenues generated thereby. GSTAR cooperates with the New York-based Donation Angel Club and makes donations to the most sad stories in society. Now the game is not simply a tool to enjoy, but a shared and coexisting system. In the past, the idea that games were only consumed was strong, but entering the world of the 4th industry, we think that the game is the fastest way to introduce and apply the system to create and share new things. We are looking forward to seeing how the block-chain technology of the GSTAR game that Korea and Japan prepare together will contribute to society.