Logo Viva New Vegas


The Wabbajack Viva New Vegas modlist will allow you to quickly and easily install the same modlist that the manual guide would result in.


A Premium subscription to Nexus Mods is highly recommended since it will allow an automated installation


Once you meet the requirements, follow the Setup page to get your game ready for the modlist installation.


  1. Download the latest Wabbajack
  2. Create a new folder anywhere outside of any default Windows folders
  3. Place the downloaded Wabbajack.exe in this folder, then run it
  4. Enable Show Unofficial Lists, then locate Viva New Vegas in the gallery and click the download button in the corner
  5. In Installation Location select an empty folder that is NOT the following:
    • The Steam folder
    • Any default Windows folders
    • The game folder
    • The folder where you put Wabbajack.exe
  6. Begin the installation
  7. Accept the Nexus Mods API request
  8. If you are not a Premium user you will need to manually click download for each mod
  9. Once complete, the installation will show a green Installation Complete screen
    • If you see a red Installation Failed screen, please join the Viva New Vegas Discord server for support

Post-Install Steps

  1. Head to the location where you installed the modlist
  2. Open the Tools folder, then open the 4GB Patcher folder
  3. Copy the .exe file to the game's Root folder
  4. Right-click on FNVpatch.exe and select Run as administrator
  5. A command prompt window will open and should say FalloutNV.exe patched!
  6. Close the command prompt and a file named FalloutNV_backup.exe should appear in the game's Root folder
  7. Open Mod Organizer 2
  8. Expand the Utilities separator, you will see multiple NVTF configurations that are disabled. Read the notes then decide which fits your setup best and enable it
  9. Now you can play the game through the New Vegas option in the top right
  10. Run New Vegas through MO2

Optional Steps


BSA Decompressor will give you slightly better performance and faster loading times at a small disk space cost.
  1. In the same Tools folder as before, open the BSA Decompressor folder
  2. Run FNV BSA Decompressor.exe
  3. If the game path isn't already there, enter it
  4. Click Decompress, wait for the process the finish, then exit the program once finished


DXVK is mainly used to improve performance in CPU-limited scenarios, which are the main cause of low FPS in this game.
  1. Read the mod description available here
  2. Once you confirm that your GPU supports DXVK 2.0 and higher, do the next step
  3. In Mod Organizer 2, expand the Utilities separator and enable DXVK