Looking on steamdb, it seems that these files are actually sound files. But I don't have the game so I cannot say for sure, just looking at the file names it seem to be sound files actually.

Maybe wwise in some unreal engine format or whatever. Cannot tell you anything about it.

Not to mention this is just pure awkwardness - if you want help to compress all the files, upload a small one so we can at least see what type of file it is rather than giving some dumb excuse. File Extensions mean nothing, what you really need is a Hex Editor to see what the file actually is.

Something like

BmGame/CookedPCConsole/SFX/SFX_4.wad

Might be good.

WWise Ogg, can be processed manually by Oggre, check Masquerade's tutorial.

Average gain ~10% of initial size.

Lego Star Wars The Skywalker Saga
Update 04.05.2023

are you sure? How can I use wWWise ogg procedure on .wad files? I've tried to use wemtool, but of course the exe file found nothing.

How to rip compressed assets, when only having the decompressed assets?
 

Currently I'm taking a swing at the various Quantic Dreams titles that were given a proper PC release, however I've run into a bit of a roadblock. The archives for these titles are only compressed with a basic zlib/deflate algorithm, with XTool being able to process the vast majority of streams.

Unfortunately unlike every other title I've worked on, even the localised Vorbis audio is compressed within these archives, leaving me stumped on how to rip it to make the various localised packs into selective offerings.

Currently the only method I could think to exploit was decompressing the archives as a singular block with XTool, blanking out the offending data and then try and restore the block, however, as I feared I was only met with decompression errors and was unsuccessful.

I should mention I the QuickBMS scripts for Quantic Dream titles doesn't work at all with any of the PC ports that I tested, making for scanning compressed blocks with QuickBMS currently not possible.

Has anyone had a similar problem, and if so would such an individual be willing to share their solution, I'd greatly appreciate it, these blasted titles are doing nothing but keeping me awake at night!

Assassins Creed Valhalla Complete v1.7.0
 

Full
144 GB > 51.9 GB

CT: 04:05:19
DT: 02:26:47

Request
 

Offworld Trading Company please.
Thank you.

srep+lolz

Thank you very much.
Can you also suggest compression methods for FLAC files (for DLCs)?

FLACs cannot be losslessly compressed, but you can use ffmpeg to recode them into compressed audio formats like MP3

There is an OST DLC that has both mp3 and FLAC versions. So should I ignore compressing the FLAC entirely in that case?

Also is there any guides for compressing Unity games in general?
Thanks

Depends on the game,

Some use LZ4, LZMA or none

SREP+LOLZ

Resident Evil 4 Remake
 

*.pak
xtool:mzlib:mzstd+srep_new:3+LOLZ_NORMAL

other files
srep_new:3+LZMA-MT*

Repack Size: 42 Gb
Final Size: 57 Gb (Deluxe Edition)