Where Are Cities: Skylines 2 Save Files Located?
Cities: Skylines 2 keeps saves in AppData LocalLow under Colossal Order, one folder per Steam account. Windows path plus the Proton location.
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Cities: Skylines 2 stores saves outside the Steam library, in the Unity LocalLow folder Colossal Order shares across its games. Inside Saves sits one subfolder per Steam account, named with your numeric Steam ID, and each city is a file set inside yours.
The catch is cloud sync. Steam Cloud is not configured for this game, so nothing leaves your disk unless you copy it. Treat the Saves folder as the single copy and back it up before mod updates or reinstalls. Save files grow with city size, so keep one backup per finished project rather than a single rolling copy.
Where Cities: Skylines 2 stores this, by platform
%USERPROFILE%\AppData\LocalLow\Colossal Order\Cities Skylines II\Saves\[SteamID]
One subfolder per Steam account, named with your numeric Steam ID. Player.log and settings sit one level up in the Cities Skylines II folder. Paste %USERPROFILE%\AppData\LocalLow into the Explorer bar since AppData is hidden.
<SteamLibrary>/steamapps/compatdata/949230/pfx/drive_c/users/steamuser/AppData/LocalLow/Colossal Order/Cities Skylines II/Saves/[SteamID]
Windows layout mirrored inside the Proton prefix for app ID 949230. Your library may live under ~/.steam/steam or a custom SteamLibrary instead of ~/.local/share/Steam.
Frequently asked questions
Does Steam Cloud back up Cities: Skylines 2 saves?
No. SteamDB shows no Steam Auto-Cloud for app 949230, so the Saves folder is your only copy. Back it up by hand before reinstalling or wiping the drive.
How do I move a city to another PC?
Copy the whole Saves folder with the game closed, including your numbered SteamID subfolder. Paste it back into the same place on the new machine before launching.
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