What is DOS Chain (DOS) DOS Chain is the fast, zero gas fee and three-steps onboarding blockchain network developed by DOS Labs in partnership with Avalanche using their Subnet technology. DOS Chain is supported by more than 10 game studios and a game developer community with 20K+ members. The DOS Subnet aims to bring billions of Web2 players into Web3 gaming. The goal is to provide the players with a smooth and fun gaming experience of Web2 together with the ownership, decentralization and transparency of Web3. DOS Labs has spent 8 months to customize the subnet, add the zero gas fee feature and build the whole ecosystem for DOS such as a user-friendly wallet, NFT Marketplace, etc.