ERC-1155: is a technical standard used in smart contracts on the Ethereum blockchain for implementing tokens. It combines capabilities of both the ERC-20 (fungible) and ERC-721 (non-fungible) technical standards by allowing users to create fungible, non-fungible, and semi-fungible tokens on the Ethereum blockchain.  From its initial conception by Witek Radomski, CTO of Enjin, and after a year in public review, with contributions by others, including Philippe Castonguay of Horizon Games, it was confirmed as an official token standard on the Ethereum mainnet in June 2019.

This standard allows game developers to create (or mint) blockchain gaming assets with a variety of in-game options that work on the Ethereum blockchain. It is the main standard that game developers use when implementing the Enjin blockchain gaming solution.