Shiren the Wanderer: The Mystery Dungeon of Serpentcoil Island

This page contains notes for the game Shiren the Wanderer: The Mystery Dungeon of Serpentcoil Island.

File Decryption#

So far, someone on the UnityPy Discord server was able to open the background area graphics and sound assets using a hex editor and an older version of AssetStudio.

Sound Assets#

• 158f44927ce83edf926b060a2d1b007d.bundle
• dd51eedba855ae5b9fe955733c12e109.bundle

File Decryption 2025#

Download Decryption Tools and Tutorial Needed To Decrypt The Files For The Game File: Shiren 6 Tools and Info.7z (82 KB) (info)

Thanks to multiple users on the Mystery Dungeon Wiki, it's now possible to decrypt every asset file for the game, making them possible to open using AssetStudio.

Tutorial from the readme.txt file

The following only covers the original base release of the game, before the updates.

There are (at least) 4 encryption methods used for the files in Shiren 6.

Some files in the "aa" folder, which contains graphics, audio, and in-game cutscene scripts, can be decrypted using shiren_wanderer_decrypt.bms, researched by Spiritovod.
Most other files in the "aa" folder can be decrypted using a modified version of Hololive (https://github.com/Razmoth/Hololive, edit Decryptor.cs, for the part to edit see: "Hololive source code edit.png"). Researched by idkwhatimsaying. Key: DtUp!43AZH46@*fj768GCM@ajNvEdBEB
There are two files in the "aa" folder that use a different encryption method that still hasn't been documented.
The program AddressablesTools can be used to obtain extra info regarding the files.

The "localize" folder contains the game's text files, they can be decrypted + unpacked with shiren6_unpack_localize_files.py, and encrypted + packed with shiren6_pack_localize_files.py. Researched by idkwhatimsaying, Razmoth, and B.

The "bin" folder contains data for dungeons, monsters, items, and more. Its files use an encryption method that still hasn't been documented.