Oxygen Not Included (ONI) has an incredibly vibrant modding community that can completely transform your space colony management experience. While the Steam Workshop is the easiest way to manage mods, there are many reasons to learn :
While Oxygen Not Included (ONI) has a thriving Steam Workshop community, knowing how to manually install mods is a superpower. It grants you version control, access to non-Steam mods, and the ability to organize your mod folder like a digital architect.
– Recommended for manual install
Move the entire unzipped mod folder into the local folder you just located: Documents\Klei\OxygenNotIncluded\mods\local\ oxygen not included how to install mods manually
If the mod doesn't appear, ensure the mod_info.yaml file exists inside the folder you placed in local .
Manual mods do not auto-update. You must periodically check the mod's source (GitHub, Discord, forums) for new versions, especially after a major game update.
Navigate to the correct folder based on your operating system: Oxygen Not Included (ONI) has an incredibly vibrant
Look for your mod in the list. Manual mods are usually easy to spot because they lack the Steam icon. Click the button (it should turn green).
Unlike the Steam Workshop, manual mods do not auto-update . You must manually download and replace the files when a new version is released. 🔧 Troubleshooting Common Issues
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 – Recommended for manual install Move the entire
(You may need to reveal the Library folder via Finder → Go → Go to Folder)
/Users/[USERNAME]/Library/Application Support/unity.Klei.Oxygen Not Included/mods/ ~/.config/unity3d/Klei/Oxygen Not Included/mods/ Klei Entertainment Forums Crucial Step: Inside this folder, you create a new folder named exactly (lowercase) if it does not already exist. 2. Prepare the Mod Files Download the Mod: Obtain the mod files (usually a archive) from a source like
Once you have downloaded the mod (usually a .zip file), follow these steps to install it:
Oxygen Not Included: How to Install Mods Manually (2026 Guide)