NieR:Replicant ver.1.22474487139 Tools
Archive (.arc) Files
- Hex Signature:
28 B5 2F FD - Can contain one or multiple compressed files.
- Files are compressed using zstd (version >= 0.8.0)
- Usually contain PACK files (which store more files) or BXON files.
PACK Files
- Hex Signature:
50 41 43 4B. - Can contain one or multiple BXON files.
- Organizes contained files by header structures, and then all asset data at end.
- TODO
BXON Files
| Type | Description | Offset | Size | Comments |
|---|---|---|---|---|
| char[4] | id | 0x0 | 0x4 | BXON |
| uint32 | version | 0x4 | 0x4 | Replicant uses 3 |
| n/a | projectID | 0x8 | 0x4 | Format Unknown |
| uint32 | offsetToAssetTypeName | 0xC | 0x4 | AssetTypeNames have variable length |
| uint32 | offsetToAssetTypeData | 0x10 | 0x4 |
- Hex Signature:
42 58 4F 4E - Contains game asset headers.
- Some common labels include:
- tpXonAssetHeader
- tpGxMeshHead
- tpGxTexHead
- TODO
tpGxMeshHead
- Contains all things mesh geometry!
- A lot more that is too much to put here, check out the binary template.
Scripts
decompress_archive.py
Note:
- Not really recommended at the moment, ignores structure and just tries to decompress anything it can.
- Recommended instead: https://github.com/yretenai/kaine
Requires:
Usage:
python ./archive_extractor.py
Description:
Attempts to decompress and separate the archive files into their uncompressed state.
Uncompressed files will be placed in sub-directories adjacent to the Python script.
