ERC-1155: ERC-1155 is a multi-token standard that allows the transfer of multiple tokens of different types in a single, smart contract. NFTs and fungible tokens can be transferred in a single transaction, saving time and reducing costs by 90%. ERC-1155 is widely used in games. There are fungible assets such as gold and wood and non-fungible items such as a rare sword or armor in games. ERC-1155 allows the transfer of both types of items in a single transaction. However, there are notable lim...