FARC Archives

This is the main archive format the game uses to store its data. It has a very simple structure but all numbers are stored in big endian format.

Header

Offset	Type	Name	Description
0x00	int32	magic	Magic number (always "FARC")
0x04	uint32	file_count	Number of files in the archive
0x08	uint64	data_offset	Absolute file offset of the data segment

File Table

The file table starts right after the header and contains Header.file_count entries of this structure:

Offset	Type	Name	Description
0x00	uint32	name_offset	Absolute offset of the file's name
0x04	uint32	id	ID of the file (maybe used for identification in the game, so it should stay the same when repacking)
0x08	uint64	offset	Absolute offset of the file's content
0x10	uint64	length	Length of the file's content
0x18	uint64	orig_length	Original (uncompressed) size of the file

File Names

The file names are stored as null-terminated ASCII strings. Their position in the file is defined by the respective file table entry but usually the segment that contains the names is located right after the file table.

Content

Every file is defined by its file table entry. The files are usually stored in an LZSS compressed format (they start with "LZSS" in this case) and need to be decompressed before they can be used. Compression is not needed when repacking.