These "all-in-one" offline clients are designed for users who want to play Black Ops 2 without a constant internet connection or official servers. They often use launchers like LanLauncher or older Redacted/Plutonium builds modified for LAN-only play.
| Error | The Fix | | :--- | :--- | | | Your main folder is missing localized_english_iw37.ipak . Copy it from Steam. | | "UI failed to load." | Delete %LOCALAPPDATA%\BO2Offline\ui_cache . Restart. | | No servers in LAN list. | You need RADMIN VPN or ZeroTier . This client requires a virtual LAN. | | Crashes on "Mob of the Dead" | Lower Texture Quality to "Medium." The v37Z renderer hates High shadows. |
: Play Zombies or Multiplayer with bots without an internet connection.
Select or use 7-Zip to unpack the contents directly into your newly created folder. Step 2: Verify the File Structure bo2offlinespmpzmclientv37z install
Installing this specific version (v37z) allows players to access all game modes, including DLC content and local LAN play, entirely offline. Key Features of the v37z Client
: If you get a "d3dx9_43.dll" or "msvcp100.dll" error, you need to install the DirectX End-User Runtimes and the Visual C++ Redistributables.
: 7-Zip or WinRAR to extract the .7z client container file. These "all-in-one" offline clients are designed for users
: You do not need Steam open to run this client. In fact, it is safer to keep Steam closed to avoid any potential (though rare) interference with your official account.
Community builds can be buggy, especially when switching between ZM and MP modes.
If the specific "v3.7z" file is outdated or causing errors, the modern community standard is the client paired with a dedicated LAN Launcher Plutonium Client : Download the launcher from the Official Plutonium Website and point it to your game directory. LAN Launcher Copy it from Steam
. It features an offline mode, active support, and can be downloaded from the Plutonium Project Steam Deck Compatibility : For handheld users, use Proton Experimental
From the speakers, a voice that sounded like a low-bitrate version of his own whispered, "Don't quit now. We're just getting to the high rounds."
: Instead of launching through a standard platform (like Steam), you run the specific executable provided by the client (often named something like t6_offline.exe Configuration : Most offline clients include a configuration file (like a
Locate your Black Ops II installation folder. It is highly recommended to copy your entire game folder to a new location (e.g., C:\Games\BO2_Offline ) to keep your official Steam files untouched.