Game Center is Apple’s online multiplayer network service used to save and synchronize your progress in War Robots.
It is possible to play War Robots without Game Center, but your progress will be lost if you uninstall the app.
To synchronize your progress between two devices, log into Game Center on your iOS device. Follow these steps to do this:
- Download War Robots from the App Store;
- Launch the game and log into Game Center in the pop-up window:
- If the window doesn’t pop up, go to your device’s settings and pick ‘Game Center’;
- Enter your Apple ID credentials.
More detailed instructions are available on Apple’s website.