According to the report of York University, the nine ethereum dapps games ranked in the State of the Dapps found that they meet all criteria of gambling. The research paper explains that the ETH-based crypto games are video games with a fully or partially distributed ledger architecture that runs on top of a cryptocurrency network. The researchers studied the gameplay mechanics and also examined the data to see how these players have been spending crypto in the game. In each game, they applied the combination of legal and psychological definitions of gambling.