Asobo Save Game File Format Specification

This is the save game format used in FUEL. Other games have different formats. Most of the information that used to live on this page now lives in the fuel-save-editor repository, which contains a tool for unpacking and packing FUEL save files as well as a wealth of information about the save file format and ImHex patterns.

See also: Save games use the Alternate CRC-32 algorithm and not the primary one. For information about the compression used, see the Asobo Arithmetic Coding Compression entry. Information about the XLiveProtectData/XLiveUnprotectData protection is available in the xlive-research repository.