A decentralized MMO is a type of online game in which players may interact without the need for a central server. They are also referred to variably as fully decentralized games, peer-to-peer games, or on-chain games. The earliest pioneer of decentralized MMOs was Huntercoin.
Most NFTs still rely on servers, and most blockchain games do not meet this definition. This is partially due to technical limitations: it remains difficult to store large data files in a decentralized manner, and the number of blockchain transactions required is prohibited by current transaction fee levels. Proponents argue new scalability solutions will solve this problem.
The majority of decentralized MMOs work in one of two fundamental ways: