Gambling appeared at the dawn of civilization. In the East and West, people enjoyed gambling with pleasure and nothing - neither the authorities nor the church could stop the spread of gambling. Ethereum-based gambling is a real revolution in the gaming online industry. The share of the Internet accounts is 30% of total income of the entire gambling industry in the world, which is rapidly developing in step with digital technologies. Of course, the development of this market requires transparency, honesty and ease of manufacture. The solution turned out to be a decentralized technology of blockchain, which solves all the traditional problems of this market. Data and program code are stored in decentralized blocks. The decentralized blocks are in public access online. A random number generator and open source code will provide a safe and fair game. It excludes the possibility of any manipulation!