ZenHAX

Here is script for unpacking lpk files from steam (default option), ru and jp versions of the game. Credits to Brouznouf for algorithm.

Update: Script is updated to properly decrypt databases from lpk files.

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Test script for repacking is appending modified file to archive, which should be specified in the script (read included comment), and invalidating existing entry. Both modified file and archive should be placed in the same folder and the script is used on modified file. Simple re-import without modifying extracted file doesn't break the game and everything works fine, which means script is producing compatible with the game archives. The rest depends on particular files, for example, databases seems to have internal integrity checks.

Update: Updated script should work with all files from lpk. Note that size of any database should be aligned to 0x100 before re-importing, that's how they're originally built.

@phpbb2233: I've updated both scripts and also LAUTool with support for tw client. They are available in original posts at page 6 now. Note that default option for scripts is steam version, you need to edit them manually to set required region.

@phpbb2233: I've updated both scripts and also LAUTool with support for tw client. They are available in original posts at page 6 now. Note that default option for scripts is steam version, you need to edit them manually to set required region.

It worked!. It’s so hard to find the model I’m looking for lmao. I managed to find a costume and a head. I’m still trying to find the missing textures .

Ok, fixed problem with WEM files. For convert to playable Ogg format you need two additional tools > ww2ogg and revorb:

How to

Decrypt

LAUTool -d 395891.wem 395891.wem.dec

Convert decrypted Wem file to raw Ogg

ww2ogg --pcb packed_codebooks_aoTuV_603.bin 395891.wem.dec

Fix raw Ogg to playable format

revorb 395891.wem.ogg 395891.ogg

@doomslayer: Don't hesitate to check the whole topic, not only the first page.

@doomslayer: You've quoted post with LAUTool, which only supported audio files to begin with. And aside from decryption part, LAPTool is not compatible with current upk format as well (which is the same since OBT version), nor it was able to decrypt lpk/ipk files and such, so I'm not sure where that "all file types" comes from.

Done. Batch usage tool.

LAUTool <m_Mode> <pScrFile> <pDstFile>

Example decrypt

LAUTool -d "e:\Games\LOSTARK_CBT1\EFGame\ReleasePC\Startup.upk" "e:\Games\LOSTARK_CBT1\EFGame\ReleasePC\Startup.upk.dec"

Example encrypt

LAUTool -e "e:\Games\LOSTARK_CBT1\EFGame\ReleasePC\Startup.upk.dec" "e:\Games\LOSTARK_CBT1\EFGame\ReleasePC\Startup.upk"

Tool also supported *.U, *.WEM , *.EMP and *.BNK files.


If Luigi interested, I can give snippet code. It's simple xor operation. *.LPK files encrypted with WinCrypt (See above my post)

Edited: Download see below.

@phpbb2233: I've updated both scripts and also LAUTool with support for tw client. They are available in original posts at page 6 now. Note that default option for scripts is steam version, you need to edit them manually to set required region.

Thank you for helping me solve the trouble about LOSTARK taiwan server last time
and the server in China of Lost Ark will start its internal test soon. can I provide you game files? and could you help me get the data key and database key just like you did for other servers of the lostark ?