Hey everyone, has anyone here worked on the Arknights Endfield audio files? Yesterday I was working on the music from the alpha version of the game and successfully extracted the music (all I had to do was rename the *.chk archives with the audio to *.pck and send those *.pck to AnimeWwiser). Today I was working with files from the Endfield beta, and unfortunately, the method I described above isn't working, and I don't know what to do now. I need to extract normal *.wem/wwise audio from the AKPK, but I don't know how. Please help. If you need the files, here's the link.

They are still pck files. I can find many wwise .bnk files in AA462ABBFEC319B665666E14585F97D9_EndfieldBeta with ravioli explorer , RavioliGameTools_v2.10.zip (if you need)and I think quickbms also work. By the way I guess the really wem audio files are in another pck files. there are over 5000 bnk files in AA462ABBFEC319B665666E14585F97D9_EndfieldBeta. That means the bnk files may not store any actual audio files

On 11/7/2025 at 8:37 PM, wpnb666 said:

They are still pck files. I can find many wwise .bnk files in AA462ABBFEC319B665666E14585F97D9_EndfieldBeta with ravioli explorer , RavioliGameTools_v2.10.zip (if you need)and I think quickbms also work. By the way I guess the really wem audio files are in another pck files. there are over 5000 bnk files in AA462ABBFEC319B665666E14585F97D9_EndfieldBeta. That means the bnk files may not store any actual audio files

Yes, thanks, I figured out the audio files from the previous CBT (I think the first one), but the current CBT 2/3 has a different encryption, and I'm still at a loss as to how to bypass it. Even the HEX header doesn't show what kind of asset it is—audio, texture, etc. I'll leave a link to the files and hope someone can help me with this. https://mega.nz/folder/p8QwxSgQ#dfnEkkECPBFyP-aCO4MDWw

have you figured it out yet? I also want to get the audio files. I got the pck through beyondtools (https://git.crepe.moe/rfi/BeyondTools) but the pck it outputted was still encoded with the :)xD thing

2 hours ago, Chiu said:

have you figured it out yet? I also want to get the audio files. I got the pck through beyondtools (https://git.crepe.moe/rfi/BeyondTools) but the pck it outputted was still encoded with the :)xD thing

could you post some pck files here?

8 hours ago, wpnb666 said:

could you post some pck files here?

https://drive.google.com/drive/folders/1jaGWTO9MLnFZTQIKKKapBVWy8tkbm97y heres the smallest pck folder. You can get all the pck yourself by using this https://cdn.discordapp.com/attachments/1173437087014469673/1443262717258371164/BeyondToolsMod-net9.zip?ex=6932faa6&is=6931a926&hm=73e3b753a2caa71c0353cb79e722c2199ce7f1f58c2e206a29d1b488770ae9d4& just cmd cd to beyondtools exe and then do BeyondTools "C:\Path\To\EndField Game\EndField Game\EndfieldTBeta2_Data\StreamingAssets\VFS" All "C:\Output\Folder"

On 12/4/2025 at 3:56 PM, Chiu said:

have you figured it out yet? I also want to get the audio files. I got the pck through beyondtools (https://git.crepe.moe/rfi/BeyondTools) but the pck it outputted was still encoded with the :)xD thing

Unfortunately, no, although I'm still interested in audio files. Previous methods didn't work on Closed Beta 3. Previously, it was enough to detect audio packets using AssetStudio, but it treats audio assets as invalid, and that's what helps detect audio packets. Then you need to rename all the candidates to *.pck and use something like AnimeWwise.

Edited December 5, 2025Dec 5 by NoNarluire

if you've already got the pck files from beyondtools. Try dragging the pck files from the main folder to this python script. Though this only partially extracts the language voicelines but it does extract almost all the music and sound effect files

pck_decrypt.py

21 hours ago, Chiu said:

if you've already got the pck files from beyondtools. Try dragging the pck files from the main folder to this python script. Though this only partially extracts the language voicelines but it does extract almost all the music and sound effect files

pck_decrypt.py 6.57 kB · 3 downloads

Thanks for the script, and I understand it's designed for BeyondTools? I tried using script on .chk files (I downloade full package resources ArknigtsEndfield) and then opening the *.pck file using AnimeWvise, but AnimeWvise simply closes without any errors. And since the BeyondTools link from your post above no longer works, I understand I need to build a project from this resource: https://git.crepe.moe/rfi/BeyondTools.git?

12 hours ago, NoNarluire said:

Thanks for the script, and I understand it's designed for BeyondTools? I tried using script on .chk files (I downloade full package resources ArknigtsEndfield) and then opening the *.pck file using AnimeWvise, but AnimeWvise simply closes without any errors. And since the BeyondTools link from your post above no longer works, I understand I need to build a project from this resource: https://git.crepe.moe/rfi/BeyondTools.git?

animewwise just closes instantly if you try it on there. Regular wwise works https://github.com/mortalis13/Wwise-Unpacker

BeyondToolsMod-net9.zip

On 12/13/2025 at 7:37 AM, Chiu said:

animewwise just closes instantly if you try it on there. Regular wwise works https://github.com/mortalis13/Wwise-Unpacker

BeyondToolsMod-net9.zip 161.98 kB · 14 downloads

The public-beta version have already opened pre-downloads. I used your script and it works great!
By the way, I’d like to ask that is it possible to find the names of these audio files or the names of some Wwise events?

Hi, I want to get some of audio in Data/Audio/PCK/Windows/Audit (after extract game data). I tried the decrypt method above and it worked for most of pck files like default_stream_0.pck or default_stream_1.pck... but not for language and audit audio. I still can decrypt and extract the audit audio pck but the wem files could not be converted to wav, i look at the binary and it seem to be encrypted or so. Here is sample from the audit audio, is there a way to convert these to audio? im not familiar with this encrypted stuff.

english.rar

Edited February 3Feb 3 by john1412

On 1/21/2026 at 12:41 AM, wpnb666 said:

The public-beta version have already opened pre-downloads. I used your script and it works great!
By the way, I’d like to ask that is it possible to find the names of these audio files or the names of some Wwise events?

I think it is in Tablecfg folder, i used BeyondTools.SparkBuffer (https://git.crepe.moe/rfi/BeyondTools.git?) to dump the textassets in it. You can find the names in some Audio<type>.json, but it just show the name and i dont think it related to pck audio file id name.