In this chapter, we would like to give an overview of in-game items, their creation, their importance for the long-term motivation of players and the business models of the manufacturers. We will then look at the possibilities of NFT-based in-game items and provide an assessment of how we believe Web3 technologies can be used to improve the gaming experience, increase security and at the same time enable completely new applications. As the name Web3 suggests, it is a further development of Web1 and subsequently Web2. Web1 represents the first and earliest form of the Internet from around 1989, which could be used by normal users. Web1 is generally understood to mean only the reading of information. Users were not yet able to create information themselves, as the infrastructure was complex and generally not available privately. Web1 was the emergence of the Internet, which was characterized by search engines, reading emails and viewing websites.