MCWORLD is a file type used by a computer game called Minecraft, a survival open-world game with gameworld built using cube blocks.

MCWORLD is a compressed ZIP archive file that contains all the necessary game files for created in-game world. MCWORLD files are commonly used for backup purposes or sharing data with other players. MCWORLD files can be edited using any file archive manager. MCWORLD can be created manually by users or with a built-in tool.