Hello everyone,

I need some help extracting a .pak file from the game Helldorado. I’ve tried several methods using WinRAR, ZIP, and different extractors such as Game Extractor , quickbms with differents unpack scripts but I haven’t had any success so far.

Could someone please help me or guide me on how I might be able to extract the remaining files?

Thank you very much. I’m leaving the MediaFire link to the .pak file below

MediaFire

data

I downloaded Kathana on Steam and performed some analysis on the main executable to figure out how the archive is being parsed by the game.

The header is encrypted with XChaCha20-Poly1305 and the encryption key is derived from Argon2id and the last 32 bytes of the archive are used as salt. Filenames are also encrypted with a BLAKE2b derived XChaCha20 key. LZ4 compression is used as well.

NOTE: This script will not rebuild the archive. Only extraction is supported for now.

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The correct decryption key is build-in already. I have added an additional switch that allows you to specify a new decryption key if it will ever be needed in the future.

python .\KATHANA_Pak.py "path\to\pak\file" "path\to\extraction\folder"
python .\KATHANA_Pak.py "path\to\pak\file" "path\to\extraction\folder" --password "<ENTER PASSWORD>"

KATHANA_Pak.py

Edited 12 hours ago12 hr by Falkrian