If you accidentally deleted a SimCity 4 region or maybe just want to start from a blank slate, you can download the regions here by right-clicking the region and selecting download
After you download your file, follow these steps:
1. Unzip the downloaded file
2. Find the following folder in Finder:
- Mac Steam location:
- Mac App Store Location:
3. Once you are in the correct location, drag and drop the downloaded file into the Regions folder.
4. If prompted if you would like to replace an existing file, select “Replace”.
Once you have replaced your region, you can launch SimCity 4: Deluxe Edition and get to playing!