Pk2 Extractor Apr 2026

version, num_files, index_offset = struct.unpack("<III", f.read(12)) print(f"Version: version, Files: num_files, Index at: index_offset")

If you’ve ever tried to mod a late-90s or early-2000s PC game, you’ve likely encountered a .PK2 file. Used most famously in Sacred (Ascaron Entertainment) and a handful of other titles, the PK2 format is a simple but effective archive that bundles textures, scripts, sounds, and levels. pk2 extractor

In this post, I’ll walk through the PK2 format, write a lightweight Python extractor from scratch, and show you how to unpack those archives in seconds. After reversing a few sample PK2 files (and thanks to open-source community notes), the format breaks down like this: version, num_files, index_offset = struct

# Prepare output path out_path = os.path.join(output_dir, file_path) os.makedirs(os.path.dirname(out_path), exist_ok=True) After reversing a few sample PK2 files (and

| Offset | Size (bytes) | Description | |--------|--------------|-------------| | 0 | 4 | Magic header ( PK20 or PK2 ) | | 4 | 4 | Version (usually 2) | | 8 | 4 | Number of files | | 12 | 4 | Offset to file index table | | 16 | 4 | Unknown/Reserved | | 20 | ... | File index entries |

python pk2_extractor.py game_data.pk2 ./extracted You’ll see output like:

for _ in range(num_files): # Read index entry (adjust offsets/sizes based on your game) name_offset, file_offset, uncompressed_size, compressed_size, flags = struct.unpack( "<IIIII", f.read(20) )