Python 3.9+ · Windows, macOS and Linux

The matching v3/v4.3 command-line tool.

Use the preserved v3 and v4.3 engines from scripts and build systems. The dependency-free CLI compresses with either engine or both, decrunches PCK files, verifies every result byte-for-byte, and reports end-aligned RAM safety.

Complete package

CLI, instructions and Z80 sources

Includes the Python script, README, RAM-source decruncher and the ROM/RAM-source readable decruncher.

Download complete package
Script only

One dependency-free Python file

python cbscrunch.py game.bin -e both
python cbscrunch.py game.v43.pck
Download cbscrunch.py