Compressed files and methods

Hey guys, how are you? I hope you're well, is it here that people have their minds unlocked in the matrix? 😆 Jokes aside, I'm trying to extract some files from this game: https://www.icarusonline.co.kr/main , and an old game made in CryEngine 3. the file format is .pak or .npk, an old program called PakDecrypt was able to extract files from it just using the RSA Key, but in 2024 the encryption method was changed and since then it is no longer possible to extract files. I would like to know if anyone would be able to figure out what obfuscation method was inserted into the game, you can say below how far I got, but I lack the skills to go further. This …

Hi, the files to this game are encrypted, but I couldn't figure out what algorithm. It's not xor, and I'm not sure how to proceed from here The game uses Unity 2022.2.11f1 2 sample files provided ac.zip

Hello everyone, I have been struggling for some time to extract the assets from the .vfs file in the Steam folder of the game La Pucelle Ragnarok. I am trying to get the sprites of the game since some aren't on spriters-resource.com I tried using Ninjaripper, Renderdoc, Special K and Dragon Unpacker. The later gave results, but I only managed to get sound files. For the pictures, no matter the software, I only get some glitched, negative gray scaled or red scaled ones. My best bet is Quick BMS but I need the good encryption key... I tried this list of keys but the La Pucelle and NIS keys don't work with the Steam version of the game (NIS being the develope…

These are two files with the same suffix that I extracted from the reverse UE4 game pak file. But one of them should have used some kind of compression method. I know I should use the umodel tool to extract it, but umodel does not support saving files for this game. I hope to receive help, thank you! This is a file without compression, I have provided it in the attachment. I can clearly see the file tag ,version,data... This is a file that has been compressed in some way. I can see some data with the same tags and versions as the uncompressed file. The file header contains fixed bytes such as 0x8C06. I'm not sure about the s…

Hello, I am trying to open the .ab files from the Chinese only One Piece Burning Will. I believe the game runs on Unity, however when I try to open the files in AssetStudio I get an error. .ab.zip

Hi guys looking for help in extracting files from this old arcade game Zoids Infinity EX Plus. The full file is iso/bin but cannot be opened by archive software zoidinfexplus samples.7z

the game is encrypted and i managed to extract a few of the files by installing the game on my phone and then moving it into my pc. but the rest is still encrypted. does anyone know how to decrypt unity file thingies? https://mega.nz/file/Ptgh2LKI#qB-nt6uLt_jdGp6PA9QBxSGzEvyQBZmz9zao0liwhVU these are the files

solved it myself.

Hello. Included are three archives that, were they uncompressed, I would be able to extract from, being PVR textures. Unfortunately, this kind of thing is well above my head. Help would be appreciated! compressed.zip

Hey, everyone! I recently re-discovered an old game available on the Xbox 360 Live Arcade back in the day called "Hybrid", developed by 5th Cell. I managed to extract the files however textures, models and sounds are compressed and not recognized by any tools. For instance, the .MDL files are compressed with LZMA as far as I could see in the file headers. I will upload a sample of each (sound, model and texture). Best regards! Hybrid_Sample_Files.rar

Hi everyone, I'm running into difficulties with what appears to be a modified GZIP format from a PS2 game(Virtua Cop) and would appreciate some expert help. Inside a container file (CMN.BIN, attached), I found 5 GZIP-compressed . The last four files have standard 1F 8B gzip headers, and I can successfully decompress them using tools like WinRAR to get valid TM2 texture files. The problem lies with the first stream (offset 0x0 to 0x11DF in CMN.BIN, also attached as unknown.bin). Its header starts with 1E 8A. Interestingly, if I add 1 to some bytes in the header starting around offset 0xA (treating FF+1 as 00), I can see what looks like the original filename…

Wondering if anybody knew how to extract or create some sort of script to extract all data from this disk00.bin file from the ps4 version of Cartoon Network: Battle Crashers This is where all data (apart from music which i managed to locate) is held. I can see filenames in HxD but unsure how to extract the data File Below https://gofile.io/d/oL1Cqv

Is there any tool or script to unpack the .dat files from the Japanese version of Metal Gear Solid 4? I've searched, but it seems like only tools for the US version are available. I want to play with Japanese voice acting, but the game doesn't support Japanese audio with English subtitles. If you can also explain how to port the Japanese dub to the US version, that would be even better.

Hi! The posts (with answers) I saw on this game were from years ago, and I don't think the methods to decrypt the files work correctly anymore. The game now adds CRC3210000000000000000 and 10 random numbers to the header After this is the regular unity header UnityFS. The rest of the file seems to still be encrypted in a way. The old post I read said that at the time the files were XORed, but I don't really have the time to figure out if that's still the case now and they only changed the key. aegis_unity3d.zip

i'm trying to extract all of the files from the Unreal Engine 4.26 (i believe) PS4 version of Marvel's Midnight Sun's. FModel works but i'm extracting a lot of files and it goes super slow. QuickBMS usually works on these and is able to quickly extract them but i'm getting errors and i'm unsure why. I have used the unreal_tournament_4_0.4.26d_paks_only and original unreal_tournament_4 script and none are working. I have uploaded the files of 2 different examples, both including the, PAK-UCAS and UTOC file. https://gofile.io/d/TP8vOq

Hi guys, looking for help in regards to extracting from a .DAT archive from the game Kidou Senshi Gundam Ichinen Senou for the PS2. Samples.7z

Could someone help me to decompression these files and then find a way to compress it back. _ps4.rar

Hello, I use K4os LZ4 Compression C# for decompress BinaryReader br = new(input); while (br.BaseStream.Position < br.BaseStream.Length) { uint BlockSize = br.ReadUInt32(); uint DecompSize = br.ReadUInt32(); byte[] BlockData = br.ReadBytes((int)BlockSize - 8); byte[] DecData = new byte[DecompSize]; int len = K4os.Compression.LZ4.LZ4Codec.Decode(BlockData, 0, (int)BlockData.Length, DecData, 0, (int)DecData.Length); Console.WriteLine("len: " + len); Console.ReadKey(); } The first block, decompress successfully, and the second block, decompress fail sample.zip

where winds meetUse the new version of Messiah for research and development, and several compression algorithms that were not available during Version 2 were imported internally. This is my first time seeing the EZST compression mark, and this compression type accounts for a high proportion in the file. Of course, I am not sure whether it is a compression format. I used the unknown compressed dump of quickbms, but no valid data available in all the unzipped files. If anyone is interested in researching it, you can take a look. EZST.zip

Hello everyone! I want to recognize what contents stored in those *.str files. My goal is extracting rigged models and animations from that game. they're looks like compressed ones, but I can't recognize what algorithm is this since I'm not expert at compression methods. Some examples of these files: https://drive.google.com/file/d/1obCO9rZrq13Q1Rkznm9DB-FrLf4Mgikw/view?usp=sharing https://drive.google.com/file/d/1sXKFfZQEMpcxXY-yYxZIXbWThgyQjwUE/view?usp=sharing

I want to edit this file, which code software should I use? cache_res.zip

Can someone help me extract these files? The files are: root.assets and root.project. The compression format is Zstandard Here is the link to the assets i got from the APK: https://www.mediafire.com/folder/f5s6c7pvah64d/Tom_2_1.0

Hi, I have an archive from a NuVerse game called Darkness & Divinity, which went offline about two years ago. I'm pretty eager to get access to the 3d assets from that game, but I haven't been able to figure out how to open the game's archive. Here's a link to the .APK: https://apkpure.net/darkness-divinity/com.game.nova The .APK contains an .OBB, which contains a game archive with the file extension .NOVA. I know there are Unity assets in there, but I don't know how to unpack it. Any help?

Hello! someone can give me a hand with this files, its unity but is compresed or encrypted (really hope no) was searching any bms script to restore the unity header to be readable with AssetsStudio. Any kind of help is welcome. thanks assets.zip

Hello Folks, I've been using this quickbms script to extract a .ini file and reinject it back to the original pak, the batch file are as follows. The script worked fine ever since the early access stage of the game until the game changed from UE4 to UE5 in this July. The script can unpack the .ini file normally but fails to pack it again, even if I tried to pack it directly after unpacking it ran into this error: So far I've also tried repak as well as the official UnrealPak but none of them seemed to work, as they both will result in a different pak size after repacking. Any assistance is highly appreciated. …