Oxygen Not Included How To Install Mods Manually [2026]

Final path example:

Copy the folder manually. Unlike many games that bury mods in AppData , ONI has a dedicated, easy-to-find folder. Default Paths by Operating System: Windows: oxygen not included how to install mods manually

Now go forth and optimize those duplicants – modded to perfection. Have a mod that still won’t install? Visit the official Klei forums or the ONI Modding Discord, providing your game log file from Documents/Klei/OxygenNotIncluded/logs/ . Final path example: Copy the folder manually

When in doubt, use the Steam Workshop for ease. But for those times you need a specific, outdated, or custom mod – manual installation is your lifeline. Have a mod that still won’t install

C:\Users\[YourUsername]\Documents\Klei\OxygenNotIncluded\mods

Oxygen Not Included (ONI) by Klei Entertainment is a deep, complex space-colony simulation. While the base game offers hundreds of hours of challenge, the modding community has breathed new life into it—adding quality-of-life features, new buildings, and entirely new mechanics.

~/Library/Application Support/unity.Klei.Oxygen Not Included/mods (You may need to reveal the Library folder via Finder → Go → Go to Folder)