Sorry to hear you had to reset your device @TheIronhelix. You will be able to recover your city if it was saved online. Any offline progress is lost I'm afraid.
If your city was linked to either your Facebook, Google+ or GameCenter account, simply install the app again and complete the game tutorial. You will then see the option to connect online. Log on to the account where your city is stored and it will automatically load up on your device.
Hope that helps.
You'll find more information on offline mode here:
Sometimes Offline happens. But even if your train meets a tunnel, your network provider falls over, or you’re visiting Grandma in the wilderness, you can still keep building your city. Your offline progress will be saved on your mobile device until next time you go online. Pretty cool, huh?
From time to time we will remind you to get back online, as there are a few important reasons to check in with us regularly.
When you play offline:
- Your device is not communicating with our servers, so we are not saving your progress. If something happens to your device, you could lose your progress!
- Social features are disabled so you are unable to visit your friends’ cities (Daniel's Trade Depot will still be open for business).
- Your Trade Depot and Global HQ are inaccessible. If items previously put up for sale in your Trade Depot are sold while you play offline, you will receive your Simoleons only after you connect again.
- Important updates and bug fixes won’t be relayed to your phone. Don’t miss out!
- You cannot make any purchases of SimCash in the store (but you can still exchange your current SimCash for Simoleons).
It’s also important to note:
- If you have been playing offline on one device and start to play online on a secondary device (using the same account login), any offline progress you made on the first device will be overwritten and cannot be retrieved.
- If you’ve stayed offline for a while, there will come a point where you’ll be unable to continue playing unless you reconnect. Important updates and new features will be coming, and you’ll want to keep up with the possibilities for enhancing your city of the future! We’ve got a lot planned and want you to have the best experience possible!
