Online gaming services; entertainment services, namely, providing online computer and electronic games; entertainment services, namely, providing temporary use of non-downloadable computer games; provision of online, non-downloadable web and mobile video-game computer program featuring in-game virtual currency, tokens, and non-fungible tokens (NFTs); provision of downloadable computer and mobile application gaming programs featuring in-game virtual currency, tokens, non-fungible tokens (NFTs) and non-fungible assets; entertainment services, namely, providing virtual environments in which users can interact for entertainment purposes; entertainment services, namely, providing non-downloadable digital collectibles, represented by non-fungible tokens (NFTs); entertainment services, namely, providing online non-downloadable software featuring non-fungible tokens (NFTs) and other virtual goods; entertainment services, namely, organization and provision of quizzes, games, and competitions; entertainment services in the nature of fantasy sports leagues and competitions; use of digital collectibles in on-line contests, games, and challenges; providing online gaming services using an online marketplace for buyers and sellers of blockchain-based non-fungible assets; administration of blockchain-based online gaming services