MO2 (Mod Organizer 2)
How to use MO2 - it's that simple
Last documented update: May 19 2025 by MyNameIsSpirits
MO2 (Mod Organizer 2, Nexus | Github) is a free, widely-used mod manager, especially popular for Bethesda games like Skyrim or Fallout. It fully supports Cyberpunk 2077 and is praised for its ease of use.
Using MO2 keeps your base game directory untouched and allows for easy mod installation, uninstallation, and updating. Additionally, you can create different profiles for mod configurations.
Before we start...
MO2 keeps all of your mods in a separate location from Cyberpunk's base game directory: however, when you launch Cyberpunk through MO2, it will load mods from both MO2 and the game folders.
It's best to let MO2 handle all of your mods and leave the base game directory clean.
But I have so many mods to uninstall!
You don't need to go through your folders and manually delete all of your mods, nor should you reinstall the entire game. We have a handy mod remover script (courtesy of our dear manavortex) that will automatically do it for you. After running it and validating your files, you will have a 100% clean installation of the game and a backup folder of the mods it removed, in case you change your mind about MO2 and want those mods back.
Download and Install MO2
Download MO2 from either Nexus Mods (yes, Skyrim Nexus) or GitHub
Install MO2:
When installing, choose either the Global Instance option (recommended for multiple games)...
...or choose Portable Instance if you want a separate installation of MO2 for each game.
Do not install MO2 inside Cyberpunk's directory! This has been confirmed to cause issues.
Setting Up the Game
Launch MO2.
Create a new instance:
Browse to the Cyberpunk 2077 installation folder to create the new game instance.
Customize your Profile Settings (Optional):
These can be left unchecked unless you need profile-specific INI files, save games, or automatic archive invalidation.
You can change these settings later as needed.
Installing CET and Red4Ext (the script extenders)
You can either install these mods manually, or install Zash's plugin update (see #plugin-installation-guide)
Script extenders: Manual install
Download the mod from Nexus
Open the downloaded .zip file by double-clicking it
Drag and drop everything inside the folder directly into The Cyberpunk 2077 Game Directory
You're done
Script extenders: plugin installation guide
I'm going to stress this as hard as I can: the plugin I just talked about is still somewhat new. I haven't had any issues with it so far, and I was able to guide someone who'd never even heard of MO2 previously, and they also have not experienced any issues.
With that said, there is always a possibility that something simply doesn't work as expected. If you're absolutely, totally, undoubtedly 100% sure that you followed the below steps correctly and it still doesn't work, I would advise you to visit the official MO2 Discord server linked at the top of this guide and seek help there.
Installing Mods from Nexus
Go to the Nexus Mods website for Cyberpunk 2077 mods.
Download mods via the "Mod Manager Download" button. MO2 will start to automatically download the mod.
In MO2, open the Downloads tab and double-click the mod to install it.
After installation, ensure the mod is enabled by checking it in the Plugins list or the Installed Mods section.
Adding Mods from Other Sources
If you have mods from external sources:
Download the mod and move it to the Downloads folder by using the file folder dropdown in MO2 ("Open Downloads folder").
Alternatively, drag and drop the mod into the Downloads tab within MO2.
Launching the Game
When using mo2 as a mod manager, you always have to launch the game through MO2.
Always Launch the Game through MO2:
If you're using MO2 as your mod manager, make sure to run Cyberpunk 2077 via MO2. Your mods will not be loaded otherwise.
Steam will still track your playtime and achievements.
Run the Game:
After setting up all your desired mods, click Run in MO2 to launch Cyberpunk 2077.
Tips and Best Practices
Stay up to date with the latest versions of both MO2 and the mods for the best experience and compatibility.
Troubleshooting
Some mods aren't working!
If you aren't using the updated plugin, make sure that CET and RED4ext are installed manually (check Installing CET and Red4Ext (the script extenders))
If you are using the updated plugin and you're getting REDscript errors on startup, make sure you've restarted MO2 after updating the plugin.
Make sure that your MO2 instance is not directly in the The Cyberpunk 2077 Game Directory. This has been confirmed to cause problems and is a non-optional step.
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