Your saved citizens, buildings and progress on this browser will be replaced. Export a backup first if you want to keep them.
The selected file passed validation. Importing replaces the current world and saved progress. A backup download of the current world will be requested first; keep exported backups before importing.
The existing save has not been overwritten. Download a backup before choosing a new world.
Choose explicitly when browser and account worlds differ. Your current world remains active until you choose. Account checkpoints do not run the simulation while closed.
Restoring replaces this browser world. A backup download of the current save is requested first. Account data is kept until you explicitly choose to upload.