Enjin Coin ($ENJ) announced the launch of its smart contracts on the Ethereum ($ETH) mainnet. The project used over 3.8 million ENJ to mint the first ever ERC-1155 tokens. ERC-1155 is an upgrade to the ERC-721 token standard, which allows the creation of non-fungible tokens (NFT). ERC-1155 enables the bundling of complex transactions and creation of fungible, semi-fungible, and non-fungible tokens using a single set of smart contracts.