Not actually unity files, more like side-loaded assets. Here is script for extracting images from most of those types, the rest of data in files is more like system data for their usage.

Work-in-progress script for extracting files from b2containers: https://zenhax.com/viewtopic.php?f=9&t= ... 001#p64001

Please try to avoid cross-posting and ask related questions (or submit errors) in the topic at zenhax.

All tools for such games are already exist. Literally first result in google for "mario sonic 2016 pac files": https://www.vg-resource.com/thread-36365.html Required tools: older pacpack version ( link ), modelfbx from any libgens-sonicglvl package, any tool for gxt/dds textures ( switch t...

@tsumugi: I suppose you're trying to convert all files, while only some of them are encrypted. I've created quickbms script based on Nanoka's samples and info from the first post. You can run it against the whole folder, it will decrypt only encrypted files. Tested on current game version as well.

@Xnictax: Well, that image2gnf was just an example, I never used it by myself. Native tool from SDK is producing proper result though, just checked it with the sample above and Fallout 4 texture converter as GUI.

@Xnictax: gnf textures can be created either with PS4 SDK tools (like in case with Fallout 4 texture converter), or third-party implementations like image2gnf. Also, I remember some Persona 5 mod tools exists, like GFD-Studio, but judging from Amicitia, you're already aware of it.

Just for reference: https://www.gildor.org/smf/index.php/to ... l#msg39609

The linked above tool works fine, you just need to use compatible chrome version, which is 85. You can grab it from portable apps , for example. No additional fix is required, unless you want to reinvent the wheel for educational purposes. I don't know about meshes, but textures can be partially exp...

Here is script for unpacking, but it's not valid for proper reimport due to unknown hashes.
Tested only on the provided sample.

I just wonder, if Il2CppDumper works fine, it should also create dummy mono libraries (for exploration via dnSpy or something), where you can find decryption scheme in more convenient format - and though tea/xtea key may not be present directly, you can find RVA for the function there and try to tra...

@atomicool: https://notex.app/rpkg/

They are unity bundles, so they're compatible with any unity tools like AssetStudio.

It's simple xor on header part of model and atlas files (the rest is not encrypted). Key is dynamic for every file, probably derived from hash128 value, included in manifests. Here is workaround, which should work fine too. Tested on a few assets from 2.03 version of the game.

Here is bms script, which is doing the same thing (converts pak to sbpack).

AC7 is an unreal engine 4 game and can be extracted with base UE4 bms script and corresponding key. Though you can't do a lot with extracted assets, since many of them are additionally obfuscated. There are a lot of AC7 modding guides in the net or even compilations of them, like this one.