OPCraft was built to demonstrate blockchain-related features like that, and also to demonstrate a toolkit developed by 0xPARC’s Lattice for building on-chain games. Conventional videogames are often built using game engines such as Unreal Engine that speed up the work by handling lower-level details of the programming of 3D environments and other components. OPCraft was built using software Lattice developed called MUD, an “on-chain game engine.” 

Glibert and a fellow Lattice engineer, who goes by the pseudonym Alvarius, built MUD after…