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They looks like encrypted by the same key. Unity bundles have large, mostly static header and this very helpful in our case: So, if simple XOR is used for encryption, we can try to get key using marked ^ part of header, adapted for Unity version used in game: (not sure in highlighted byte and too lazy to check, but it's better to note and change, if errors occurs) XOR have some interesting features: If you XOR 00 byte with any byte, you get this byte value in place of 00 - so, short keys can be visible with bare eyes if encrypted file have a lots of 00-bytes. If you XOR encrypted file with original one - you'll get <key><key><key> sequence on whole file content. We don't have original file, but we recreated first 35 bytes of it. So, i renamed a copy of game bundle to "s1" and XOR it as new "s1x" file using reconstructed header bytes as key, with XOR tool from Luigi Auriemma: xor s1 s1x 0x556E69747946530000000008352E782E7800323032312E332E39663100000000000000 And got partial <key><key> sequence: So, XOR key is: EA7B2B092B59433996F0B470B7B3FEA7BC0AA57B0208A7314420 Decoding test bundle as "s1t" file with this key: xor s1 s1t 0xEA7B2B092B59433996F0B470B7B3FEA7BC0AA57B0208A7314420 Looks very good ) Drag-and-drop "s1t" file to AssetStudioModGUI, and it loads without issues, so key is valid: Dealing with 36K files in cache isn't easy task, so i done a python script for mass decrypt and save to separate folder: # Mobile Suit Gundam - Iron-Blooded Orphans G bundles unxor import os xor_magic = b"\xBF\x15\x42\x7D" # xor key: EA7B2B092B59433996F0B470B7B3FEA7BC0AA57B0208A7314420 xor_key = bytearray(b"\xea\x7b\x2b\x09\x2b\x59\x43\x39\x96\xf0\xb4\x70\xb7\xb3\xfe\xa7\xbc\x0a\xa5\x7b\x02\x08\xa7\x31\x44\x20") output_path = R"C:\tmp\Cache" with os.scandir('.') as file_paths: for file_path in file_paths: if file_path.is_dir(follow_symlinks=False): pass else: with open(file_path, "rb") as work_file: file_magic = work_file.read(4) if file_magic == xor_magic: print("Processing file:", file_path.name) work_file.seek(0) encrypted_content = work_file.read() encrypted_content_size = len(encrypted_content) decrypted_content = bytearray(encrypted_content_size) xor_key_multiplier = int(encrypted_content_size / 26) + 1 xor_key_array = xor_key * xor_key_multiplier for byte in range(encrypted_content_size): decrypted_content[byte] = encrypted_content[byte] ^ xor_key_array[byte] out_file_name = str(file_path.name) + ".unity3d" write_path = output_path + "\\" + out_file_name os.makedirs(os.path.dirname(write_path), exist_ok=True) open(write_path, "wb").write(decrypted_content) print("Decrypted file saved:", write_path) work_file.close() Must be run inside of "Cache\assets\asset\" folder, and output to temporary folder on disk C (it's SSD usualy, to speed up things). But there's other problem occur - that cache folder taken from a game which survived many updates, so a lots of older copies of same file present here, they have same name in first part (before "_") and version code as second name part. So, i done another python script to separate latest file versions to another folder: # Mobile Suit Gundam - Iron-Blooded Orphans G cache sort import os import shutil work_dictionary = {} output_path = R"C:\tmp\Cache\Assets" with os.scandir('.') as file_paths: for file_path in file_paths: if file_path.is_dir(follow_symlinks=False): pass elif len(os.path.splitext(file_path)[0]) - 2 != 52: pass else: bundle_name = file_path.name[0:33] bundle_version = int(file_path.name[34:52]) if bundle_name in work_dictionary: if work_dictionary[bundle_name] >= bundle_version: pass else: work_dictionary[bundle_name] = bundle_version else: work_dictionary[bundle_name] = bundle_version for item in work_dictionary: file_name = item + "_" + str(work_dictionary[item]) + ".unity3d" destination = output_path + "\\" + file_name os.makedirs(os.path.dirname(destination), exist_ok=True) if os.path.isfile(file_name) == True: shutil.move(file_name, destination) print("Latest version file moved to:", destination) Must be run in folder with decoded bundles, it moves latest version files to Assets subfolder. Then you can move this folder to main game folder "G_2.0.2_apkcombo\assets\bin\Data\" and load game folder to AssetStudioModGUI (took 16+ Gb of RAM): Model export works fine, with animations:   Files with names starting with "r" is not encrypted or encrypted using more secure algorithms - no luck here. Mobile_Suit_Gundam_cache_scripts.7z

So just looking at what you've posted and written, can't look in depth at the moment... -Model separation might be okay. Sometimes you do get some funny separation going on and it's not always readily sensible -UVs might be correct, worth checking it against the actual game. But if by comparison to the game they seem wrong, I'd say to look at messing with how they're being read. It looks a little based on that last image of the turret texture overlay like UV scale might be slightly off, causing things to stretch a tad out of bounds. If the UVs aren't just floating point values I'd definitely play with that with a screenshot from ingame onhand. Cool stuff though, wishing you luck.

iirc, I think it uses python 3.6 and higher to run. All I gotta do is run the tool, and a window will pop up.

How do I run wwiser? I'm having trouble as I don't usually run python applications and I got a pyz and db3 file from the github.

So now the npk have a newer encryption，There seems to be no perfect solution at the moment。So sadly。