Oxygen Not Included How To Install Mods Manually | EXTENDED |

To manually install mods for Oxygen Not Included (ONI), you must place the mod files into a specific "local" folder within your user documents. This method is essential for users on the Epic Games Store or those who want to use mods not available on the Steam Workshop. 1. Locate the Manual Mods Folder

The manual mod directory is located in your system's user data folder, not the game's installation directory. Windows: \Documents\Klei\OxygenNotIncluded\mods\local\ Mac: /Documents/Klei/OxygenNotIncluded/mods/local/ Linux: ~/.config/unity3d/Klei/OxygenNotIncluded/mods/local/

Note: If the local folder does not exist inside the mods folder, you must create it manually. 2. Prepare the Mod Files

Download and Extract: Download the mod files (usually a .zip or archive) from a source like GitHub or Nexus Mods.

Check Folder Structure: Open the extracted folder. It must contain the mod's core files directly, such as a .dll file, mod.yaml, and mod_info.yaml.

Avoid Double-Nesting: Ensure you do not have a folder inside another folder with the same name before reaching the files, as the game will fail to recognize the mod. 3. Install the Mod oxygen not included how to install mods manually

Copy the Folder: Move the entire extracted folder (e.g., BiggerCameraZoom) into the local folder you located in Step 1.

Final Path Example (Windows): Documents\Klei\OxygenNotIncluded\mods\local\YourModName\mod.yaml. 4. Enable in Game Launch Oxygen Not Included. Select Mods from the main menu.

Find your manually added mod in the list and click the Enable button. Restart the game to apply the changes. Community Tips

“I downloaded it from the steam workshop, then copied the mod into my mods/local/ folder. Once i have the mod in there, the translation shows up... as expected.” Reddit · r/Oxygennotincluded · 2 months ago

“You create a Local folder in your mods folder and put your mods there.” Reddit · r/Oxygennotincluded · 3 years ago To manually install mods for Oxygen Not Included

What specific mod are you trying to install? I can check if it has unique requirements or known compatibility issues with the latest ONI update.

Here’s a detailed, step-by-step guide to manually installing mods for Oxygen Not Included (ONI).

Step 4: Installing the Mod

Extract the contents of the .zip file. You should see a folder structure similar to what exists in the game's Mods directory.
Move the extracted folder (which contains the mod's files) into the Mods directory you found or created in Step 2.

Part 6: Common Issues and Fixes

7. Conclusion

Manual mod installation in Oxygen Not Included is straightforward once you locate the correct Local mod directory. While less convenient than Steam Workshop, it is essential for non-Steam users or for testing unreleased mods. Always back up your save files before installing new manual mods.

References

Klei Entertainment – Official ONI Modding Documentation
ONI Mods Discord – Community support

Part 5: Installing Mod Dependencies

Many complex mods require PLib (a modding library) or Mod Manager by @PeterHan. You must install these before the main mod. Step 4: Installing the Mod

To install PLib manually:

Download PLib from its GitHub page or a workshop downloader.
Extract it into mods/local/PLib/
Launch game, enable PLib first, restart.
Then enable the mod that depends on it.

Warning: The game loads mods in alphabetical order. If you face crashes, rename PLib’s folder to 0_PLib so it loads first.

Step 1: Locate the Game’s Mod Folder

The folder structure depends on your OS and store:

Before You Begin: Important Warnings

Backup Your Saves: Navigate to Documents\Klei\OxygenNotIncluded\save_files and copy your colonies to a safe folder. A broken mod can corrupt a save.
Understand the Risks: Manual mods bypass some of Steam's automatic updates and conflict checking. You must ensure the mod is for your exact game version (e.g., the current "U52-616846" update).
Enable Mods in Game: Go to the main menu > Mods > ensure "Mods Enabled" is toggled ON. Without this, no manual mod will load.

The mod does not appear in the "Local" tab.

Causes:

You placed the mod in the Steam folder instead of Local.
Your folder structure is wrong (double-nested).
The mods folder is in the game install directory (e.g., Program Files\Steam\...) – it must be in AppData\LocalLow\Klei.

Fix: Double-check your path. Use the %LocalAppData% shortcut again.

Linux (Steam)

~/.steam/steam/steamapps/common/OxygenNotIncluded/Mods