Ensure you have all parts (e.g., part001 through partXXX) in the same folder before extracting. Part 27 is just one segment of the multi-part archive.

If you have limited RAM (8GB or less), ensure you check the "Limit RAM to 2GB" box in the installer to prevent crashes during the decompression process.

Significantly smaller (varies by selected components)

~82.1 GB (based on the modified demo release v1.02 which contains full game content)