Mythos/Modding

Game data
You can find game data in the following directories:


 * (contains DAT archives)
 * (contains logs, settings, and local saves)

Unpacking the DAT files
Mythos DAT archives can be extracted using the UnHell command-line tool, which was originally developed for unpacking the DAT files for Hellgate: London.

To be safe, copy all of the .dat files (and their associated .idx files) you wish to extract into a separate folder before extracting. Also note that uncompressing and extracting the files will take some time. The total file size for the uncompressed files ranges based on the .dat's contents, but the largest one is almost three times the size (maxing out just under 700MB).

Protected data
Specific files that can be extracted from the DAT archives are protected by SHA1 hash digests. These protected files are listed with their associated hash values in the  file located in the   directory. Other files, which have the extension, cannot be viewed using any standard text editor.

You can verify the hash values of protected files using the Microsoft File Checksum Integrity Verifier command-line tool. You can also create your own hash digests with this tool; however, you cannot modify a protected file and the file's associated hash value in. Mythos will start up, but the hash value will be checked against the value stored by the server. Mythos will automatically restart and  will be reset to the defaults.