What is the best compression method for .unity3d files ? Does it vary from game to game ?

Mostly same as bundle files.

The file from that MOUSE game use lz4hc,l12 I guess

yes i try but recover file have not the same size... and give crc error...
i also try -w -r -r and hdiff , but too big and to slow to recover

Use unity plugin with the correct lz4 dll.
It must br good...

Is there a easier way to find the correct version of zstd,lz4,oodle etc or do you just sit and test'em all one by one? :p

You can just anticipate the range of libraries. This comes simply with experience over the years.
Examples: UE4/5 games will most likely never use 4.x libraries of oodle (the lowest I've seen is 2.7x in UE4, 2.8x in UE5).
Unity engine will use most likely 1.9+ of lz4 libraries (if the files are compressed).
I suggest using xtoolui for this purpose.

Atomic Heart - Ultimate Edition
 

best compression method ?

For this file (maybe not realy representative for the full game)

it's: xtool:mreflate+srep+lolz_normal
No ecryption, no oodle, zlib like compression

WWE 2K24

Decompression took about 1,5-2 hours
The game use oodle hydra compression (same as 2K25 and 2K26) so without any plugin this is the best approach to use it
Extracted and processed Wwise audio


WWE 2K25

Decompression took about 1,5-2 hours
The game use oodle hydra compression so without any plugin this is the best approach to use it
Extracted and processed Wwise audio


WWE 2K26

Decompression took about 1,5-2 hours
The game use oodle hydra compression so without any plugin this is the best approach to use it
Extracted and processed Wwise audio and bink2 videos

Rayman Legends

Can you share the final size and installation time ?

Hello
I haven't finish yet.
I'm working on it, it's take time, it's around 17 hours to do a full compress.
My last test is around 98gb compressed with all stuff (bonus + full game) and take 2 hour to uncompress

For now i'm not satisfy about results

whats the error here ? my machine has 6c12t + 16gb ram. tried on another similar machine, same results.

Hello
there is something wrong during the pass2 (recheck)
it's more or less like a CRC error in memory during rebuild dedup
You can try another version of srep (3.2 o the 4)
Or you can try to change config:

to
it will add some crc check in the srep file.
In some case it work with a slighty lower ratio.

thanks for the help wareck, using 3.92b fixed it.

-hash- just means there will be no crc check for srep. I added it because freearc already do this, so there is no need to make two crc checks, which will slow down things a bit.

Pathologic3
 

For pathologic3 :

there is some .bank files, can be processed outdside diskspan.
My results with the last game update 26.5gb

Is there no way to disable 2nd pass ? :p

Seond pass writes data...

Oh, I thought it as something else :)

I know splitting file into multiple archives causes increase in size but how much exactly ? I splitted Black Myth Wukong into 4 and the final size is almost 102 whereas it should be around 96-97, or did i mess up some other thing? Used -d96m/128m -mtt1 -mt10 -mc1023 for lolz. Precompression as per wareck. Another thing I noticed that DODI used oo2reck+oo2recm and got to 94.95GiB with a single archive

what do you mean splitting ? cls-diskspan split archive ? or splitting the game files into different archives to use different compression on them? like this one

Frontier Paladin
 

Pre-processing:

inside Paladin\Content\FMOD\Desktop you will find many .bank files.
extract all of them using bnkextr. you will find a lot of .ogg and some
other files. merge all *.ogg files into a single solid file solid.ogg using
bincat or anything else. delete the rest of the extracted files. make a
hdiff patch from solid.ogg to Paladin\Content\FMOD\Desktop without
any compression.

Archives:

• Archive 1 - Paladin\Content\Paks\Paladin-WindowsNoEditor.pak
  use oodle dll v2.9.5
  
  Code:

  ---

  xtool:mermaid+kraken+srep+lolz

  ---

• Archive 2 - *.mp4 *.mov
  
  Code:

  ---

  zstd, or you can use bz3 (better ratio but slower unpack)

  ---

• Archive 3 - solid.ogg
  
  Code:

  ---

  oggre

  ---

• Archive 4 - diff file
  
  Code:

  ---

  msc:raw:wav

  ---

• Archive 5 - everything else
  
  Code:

  ---

  dispack070+delta+razor

  ---

Final Size

splitting the game files into different archives.....though i used same method for all of them just had to do because of storage

thats valid. size increased because you split the games on 5 different 20 gb (i guess) archives. and compressed them separately. if you had compressed 100gb at once in a single archive you would atleast get "a little" better results. this goes for almost any data.

Yeah I have known that too, but for Black Myth Wukong I splitted 138GB into 4, 44.6,43.6,31.8 and 18, but the size is almost 6GB bigger than expected, that's why I was if this were because of the split or something else
used this for precomp with oodle 2.9.5

Splitting the data up like this will result in duplicated data not being sufficiently removed, thus greater final archive size.

Got it, will try redoing it then : ((

for now for Black Myth Wukong the best i've done is 96.9Gb
(full game, with optional bonus)

Data1 is all .pak
Data2 all other

I do not use mue4 because it makes installation very slow and some time crc error
(yes it's mue4 n mue5 do not work for this game )

I'm working on a new test, with bk2 extracted form pak16. just to check if give better ratio

Can anyone share best compression method for Stellar Blade ?

unreal engine crap.

do the usual I guess.

https://gofile.io/d/cG8kGN

Here is the sample, still can't really find out what to use properly :(

Use -mkraken and use the attached library

Indiana Jones and the Great Circle
Version 12th May 2026

It looks like v2.9.12 library is the correct one here, at least for the sample I have.

You have to specifiy oodle kraken level, otherwise precompression will took forever.
Sample: gameresources_0_hq_patch1.streamdb
However not all streams can be processed. Either all of the libraries I have are not the correct ones or this is one of the games which requires at least two different libraries to get all streams. I guess the latter is the case here, same as in games like WWE2K19 or Elden Ring.
Because it's idtech engine it is a bit tricky here. I looked through and I don't think plugin is possible, at least not configuration based.

Edit: Looks like resources files are kraken level 4 and you need another library for these files. Like I assumed, I guess it's the same as in other games. Two different libraries for the game files. For resources files it looks like library v2.9.0 is the way to go. The library does not work for streamdb files of course.

Edit 2: Here is the deal.

Can anyone share the OGGRE_dec couldn't fine anywhere...tried CLS-OGGRE.dll but doesn't work

here.
it doesnt work in stdio btw.

How to use it then with inno ? I was trying to use it on .bank files from forza horizon 6, is there another option?

bank is most likely fmod audio. there you need other tools like vgmbox and such.

.bank file (atleast in unity games) mostly contains wav or ogg. either way
you have to extract the actual audio data (ogg/wav) from the banks and
then compress them using msc or oggre. and make a diff for the banks
from extracted audio data.
check this thread that explains it.

The audio from Forza is adpcm afair so you cannot do much with it.