Server level.dat

server_level.dat is the name of the file used by the Minecraft Classic server for loading and saving the in-game map. The file can be backed up to save content which helps to protect constructions against griefers or to use the file for map editing.

General Information
The file is compressed using gzip to save space (as the files can end up being reasonably large due to everything, even air being considered a block).

File Format
When uncompressed, the format of the file is as follows: