SyncCrate
Oxygen Not Included guide · Updated
Your ONI colony on another PC.
Hand a struggling colony to a friend to rescue, or keep playing the same asteroid on your laptop. SyncCrate copies Oxygen Not Included saves and local mods between PCs, and after the first time only what changed.
FreeOpen sourceNo cloudWin · macOS · Linux
// 01 Why
Why sharing an ONI colony takes more than one file
Oxygen Not Included is single-player, but colonies get passed around a lot: a friend takes over a base that's running out of oxygen, two people compare how they'd solve the same map, or you move a hundred-cycle save from the desktop to a laptop.
The save itself is one .sav file, but it only loads properly with the mods it was played with. Workshop mods are easy to subscribe to again. Local mods, like a tweaked version of a mod or one from outside the Workshop, have to be copied by hand into the right folder on every PC.
SyncCrate syncs the save files and the local mods folder straight from one PC to the other. It compares files by content, copies only what's different, and shows you the list before anything changes.
// 02 What syncs
What SyncCrate syncs for Oxygen Not Included
| Folder | Path in the game folder | Files |
|---|---|---|
| Local Mods | mods/Local/Mods in mods/Local, the folder for mods you installed yourself. Workshop mods live in a folder Steam manages. | All files |
| Save Files | save_files/Colony saves (.sav). When the same colony changed on both PCs you choose which version to keep, or keep both. | .sav |
// Where it looks
- Documents folder
Klei/OxygenNotIncludedinside your Documents folder- macOS
~/Library/Application Support/unity.Klei.Oxygen Not Included- Linux
~/.config/unity3d/Klei/Oxygen Not Included- Anywhere else
- Point SyncCrate at the folder yourself, once
Built in for Oxygen Not Included
- Script warnings.
.dllfiles run code on your PC, so they're flagged for you to review before they sync. - Turn mods on and off. Disabled mods move to a
_Disabledfolder the game doesn't load. - Game-running warning. SyncCrate warns you before syncing while Oxygen Not Included is still open.
- Undo and history. Undo the last sync in one click, and put back any single file a sync replaced or deleted.
// 03 How it works
Sync Oxygen Not Included in three steps
Install and add the game
Install SyncCrate on every PC and add Oxygen Not Included in the Game Browser. Its folder is found automatically.
One PC hosts
The PC with the setup everyone should have clicks Start Hosting. The others pick it under Scan for Hosts on the same network, or paste its join code from anywhere.
Compare and sync
Check the list of new, changed and conflicting files, then Sync Now. Only the files that differ are copied, PC to PC.
TipClose Oxygen Not Included on the receiving PC before syncing. After the first sync, turn the new local mods on in the game's Mods menu; which mods are enabled is stored outside the synced folder.
// 04 Common problems
When Oxygen Not Included mods don't match
The colony needs a mod you don't have
Mods that add buildings, critters or elements are part of the save. Load it without them and those parts are gone or the colony doesn't load properly.
Sync the host's local mods along with the save, and subscribe to the same Workshop mods before loading it.
Finding the right folder
Saves and mods sit in
Documents/Klei/OxygenNotIncludedon Windows and in different places on Mac and Linux, and it's easy to copy the wrong one.SyncCrate finds the folder on all three and copies saves and local mods to the matching place on the other PC.
Two versions of the same colony
If you both played the colony after sharing it, you have two different saves with the same name.
SyncCrate shows the conflict and lets you keep mine, use theirs or keep both side by side.
Local mods can run code
Oxygen Not Included code mods are
.dllfiles, and a local mod from a friend is code you haven't checked..dllfiles are flagged before they sync, and nothing changes until you approve the list. Only sync with people you trust.
// 05 Oxygen Not Included
Good to know
- Steam Workshop mods aren't synced. Steam keeps them in its own place, so friends subscribe to the same Workshop items. SyncCrate syncs the local mods and saves.
- DLC isn't copied. A colony started with the Spaced Out! DLC needs the DLC on the other PC too.
- Your settings stay yours. Only the save and local mod folders sync.
// FAQ
Oxygen Not Included questions
How do I move my Oxygen Not Included save to another PC?
Install SyncCrate on both, host on the PC with the colony, join from the other and Compare & Sync. The save arrives in save_files on the other PC. Install the same mods there before you load it.
Where are Oxygen Not Included saves stored?
On Windows in Documents\Klei\OxygenNotIncluded\save_files. On a Mac it's under ~/Library/Application Support/unity.Klei.Oxygen Not Included, and on Linux under ~/.config/unity3d/Klei/Oxygen Not Included. SyncCrate finds it automatically on all three.
Does it sync Workshop mods?
No. Steam manages Workshop mods, so everyone subscribes to the same ones. SyncCrate syncs mods in mods/Local and your saves.
Can we play the same colony together?
Not at the same time; Oxygen Not Included has no multiplayer. You can take turns: whoever played last syncs the save to the next person.
// Related game guides
All games · SyncCrate supports 100 games.
// Free · Open source · Windows, macOS, Linux
Same Oxygen Not Included setup on every PC.
Install SyncCrate on each PC, one of you hosts, everyone else joins. No accounts, no cloud, nothing uploaded anywhere.