Hello Trying to get the sprites for Super Robot Wars Y and the Sprites /Texture2Ds are in bundle files that are encrypted Here are some files from DLC1

https://drive.google.com/file/d/1g5TXNFsIRVzsYSykNZI9xK6sIjd-P8j2/view?usp=sharing

Uhhh not sure what I need for this but the *_Data/Plugins & *_Data/Managed folders would be a good start

7 hours ago, NeoGT404 said:

Uhhh not sure what I need for this but the *_Data/Plugins & *_Data/Managed folders would be a good start

they are unity files from the game's streaming assets I can send some others from the AA folder! 
https://drive.google.com/file/d/1_dq1EprrDN6GuXGmfEjONEN-4TcaSB0r/view?usp=sharing  

wat, no, I don't need more samples, I need the executable files that are in the *_Data/Plugins & *_Data/Managed folders (not the main executable)

1 hour ago, NeoGT404 said:

wat, no, I don't need more samples, I need the executable files that are in the *_Data/Plugins & *_Data/Managed folders (not the main executable)

This game use Il2cpp

4 hours ago, MrIkso said:

This game use Il2cpp

ah I hope these files from outside of the Streaming assets folders help 
https://drive.google.com/file/d/1eNh5fR_IRz4BiTljFrCdPtw-Er0ALt9O/view?usp=sharing

On 6/28/2026 at 11:28 PM, Sirduckdude said:

ah I hope these files from outside of the Streaming assets folders help 
https://drive.google.com/file/d/1eNh5fR_IRz4BiTljFrCdPtw-Er0ALt9O/view?usp=sharing

Did you managed to decrypt any of the bundle files? I actually want to edit the character and robot stat, which is actually working in the Switch version. Do you know what the type of encryption used on this .bundle files?

This is one of the file a0ae82c7bcb2df2b2ea1cd705dd968f6.bundle that I'm interested in which is containing PilotBasicDatas.

This is the bundle files from Switch version (v1.3.0) which is by default not encrypted and PC version (also v1.3.0) encrypted

a0ae82c7bcb2df2b2ea1cd705dd968f6(Switch).rar a0ae82c7bcb2df2b2ea1cd705dd968f6(PC).rar

Edit : Also as an added information, the dev previous game such as Super Robot War (SRW) 30, SRW V and SRW X is using Blowfish and CRILAYLA encryption on its game data files. I don't know if this game also using that or completely different encryption

Edited July 8Jul 8 by Oneslice
Added information

Each bundle uses a unique key derived from a password and its filename. Give the script a try and let me know if you run into any issues. 👍

---

# Make sure the cryptography package is installed before running the script
python -m pip install cryptography

python .\decrypt_srwy.py "path\to\folders\with\bundles"

decrypt_srwy.py

26 minutes ago, Falkrian said:

Each bundle uses a unique key derived from a password and its filename. Give the script a try and let me know if you run into any issues. 👍

---

# Make sure the cryptography package is installed before running the script
python -m pip install cryptography

python .\decrypt_srwy.py "path\to\folders\with\bundles"

decrypt_srwy.py

AAAA THANKS!!! THIS HELPS A BUNCH! I haven't tested it on man game or the other folders since thats 16 gb... but I will inform if anything is weird!

Happy to help!

On 8/29/2026 at 8:58 AM, Falkrian said:

Each bundle uses a unique key derived from a password and its filename. Give the script a try and let me know if you run into any issues. 👍

---

# Make sure the cryptography package is installed before running the script
python -m pip install cryptography

python .\decrypt_srwy.py "path\to\folders\with\bundles"

decrypt_srwy.py

Would this tool work for the steam version of Hololive Dreams? It's also a unity game (il2cpp) and I believe it has similarly encrypted files (or perhaps files hidden in another directory), since none of the character models show up when browsing the main directory in AssetStudio.

EDIT: Not sure I did everything right, but I tried it and it gave a "ValueError: (file.bundle): Decrypted data is not a UnityFS bundle" and only exported a 0kb file.
The game is a free download and isn't too large of an install, but if I need to supply a file do let me know

Edited Sunday at 10:32 AM1 day by KRNV

Interesting. My tool initially failed, but I have added support for it.

---

Here’s a quick ’n dirty script for decrypting the bundles. Let me know how it goes. 👍

python .\holodreams.py "path\to\hololiveDreams\game\folder" "path\to\folder\for\decryption"

# Example
python .\holodreams.py "D:\Steam\steamapps\common\hololiveDreams" "D:\Steam\steamapps\common\hololiveDreams\decrypted"

holodreams.py

On 8/29/2026 at 2:26 AM, Sirduckdude said:

AAAA THANKS!!! THIS HELPS A BUNCH! I haven't tested it on man game or the other folders since thats 16 gb... but I will inform if anything is weird!

Huh slight issue question in the dlc folder Does I Heat Metal/any forms for W appear? on your end? I can't find them


Since Double has alternate forms but I can't seem to find these? I've tired dumping the images but I still can't find W's anywhere I am afraid its not fully finding all things

Edited Sunday at 09:21 PM1 day by Sirduckdude

13 minutes ago, Sirduckdude said:

Huh slight issue question in the dlc folder Does I Heat Metal/any forms for W appear? on your end? I can't find them


Since Double has alternate forms but I can't seem to find these? I've tired dumping the images but I still can't find W's anywhere I am afraid its not fully finding all things

they should be in the dlc folders here
https://drive.google.com/file/d/14-a5-1zXgiZLZpyVRjs0Cz5aQEuv_ffV/view?usp=sharing
And I do know they have portraits

UPDATE
I'm Stupid weirdly the are in the files of the Main Game Rather than the game DLC

20c98b6d5ae8e01ec6df688c92e1b30b.zip

Edited yesterday at 01:16 AM1 day by Sirduckdude

Have you sorted it out or? 🙂

46 minutes ago, Falkrian said:

Have you sorted it out or? 🙂

yea I sorted it out I do Know the unnamed files are likely Audio files?

On 8/29/2026 at 7:58 AM, Falkrian said:

Each bundle uses a unique key derived from a password and its filename. Give the script a try and let me know if you run into any issues. 👍

---

# Make sure the cryptography package is installed before running the script
python -m pip install cryptography

python .\decrypt_srwy.py "path\to\folders\with\bundles"

decrypt_srwy.py

Hey there I have stumbled upon this while researching about decrypting unity asset files for a different game, is there a way to contact you in private? I have my own findings (I did bypass ssl pinning to do an http proxy then fetched the game's cdn servers and learned how to download their files and structure the urls, that's why I am hesitant to share these here because that game actively tries patching methods to hide a rooted environment so I would prefer a private contact if that's okay) and you seem to know a lot about after I checked your projects page, would love to work with you :)