Oxygen Not Included How To Install Mods Manually [ UPDATED ]

If you're not using Steam, or you prefer a more straightforward method, ensure you're downloading mods compatible with your game's version, and you're ready to manually manage your mods.

Some manually downloaded mods come in a folder named after the Steam published_file_id (e.g., 1836532105). Place that entire folder into Mods/Steam.
However, for pure manual install, method A is simpler.

Manual installation in Oxygen Not Included is a powerful skill. Use it when you need a mod not on the Workshop, when you want to manage versions precisely, or when the Workshop is unavailable. However, for most players, the Steam Workshop remains the recommended method: it’s safer, easier, and handles updates automatically. Consider manual installation a tool for your troubleshooting kit, not your daily driver. By following this guide carefully—especially the folder structure and backup steps—you can safely expand your colony’s possibilities beyond what Klei originally designed, turning a hard survival game into a personalized sandbox of creativity and efficiency.

To install mods manually in Oxygen Not Included , you must place the mod files into a specific "local" folder within the game's directory. This process is useful for players using versions from the Epic Games Store or those who want to use mods not available on the Steam Workshop 1. Locate the Mods Folder

The manual installation directory varies depending on your operating system: \Documents\Klei\OxygenNotIncluded\mods\

/Users/[Username]/Library/Application Support/unity.Klei.Oxygen Not Included/mods/ ~/.config/unity3d/Klei/Oxygen Not Included/mods/ Steam Community 2. Create the "local" Directory If it does not already exist, create a new folder named inside the 3. Install the Mod Files Download and Extract : Obtain the mod (typically a file) and extract its contents. Create a Mod Subfolder : Inside the

folder, create a new subfolder specifically for that mod (e.g., local\MyNewMod\ Transfer Files oxygen not included how to install mods manually

: Move the extracted files into this subfolder. You should see files like mod_info.yaml directly inside this subfolder. : Avoid "double-nesting" folders (e.g.,

How to Manually Install Mods for Oxygen Not Included While the Steam Workshop is the easiest way to manage your colony's upgrades, players using the Epic Games Store

version or those who prefer manual control can still install mods easily. This guide walks through finding your local directory and getting your mods up and running. 1. Locate the Correct "Local" Folder

Oxygen Not Included (ONI) looks for manual mods in a specific

folder within your user data directory. You may need to create this folder if it doesn't already exist. %USERPROFILE%\Documents\Klei\OxygenNotIncluded\mods\local

~/Library/Application Support/unity.Klei.Oxygen Not Included/mods/local ~/.config/unity3d/Klei/Oxygen Not Included/mods/local 2. Prepare the Mod Files If you're not using Steam, or you prefer

Manual mods must be placed in individual subfolders to load correctly. your desired mod from a source like

or use a third-party tool to download files from the Steam Workshop. Extract the ZIP file. You should see files like mod_info.yaml , and often a Create a subfolder inside the directory named after the mod (e.g., .../mods/local/TrueTiles/ Move the files

into this new subfolder. Avoid "double-nesting" (e.g., ensure it isn't .../local/TrueTiles/TrueTiles/mod.yaml 3. Enable the Mods In-Game

Simply placing the files in the folder won't activate them; you must enable them through the game's UI.

Manually installing mods is more fragile than using the Workshop. Here is how to fix common problems.

The path varies, but generally: ~/.steam/steam/steamapps/compatdata/457140/pfx/drive_c/users/steamuser/AppData/LocalLow/Klei/Oxygen Not Included/mods Manual installation in Oxygen Not Included is a

Open the mods folder. Inside, you will likely see folders like Steam (where your Workshop downloads go).

To manually install a mod, you will almost always be working inside the Local folder.

If a Local folder does not exist, create it now. This is the sanctuary for all mods that you manually curate. The game engine specifically scans this folder for non-Steam content.

Cause: The game updated, and the mod developer hasn't released a patch.

Fix: