Deleting Local Data

1. Open Settings on your device
2. Go to Apps or Application Manager
3. Find and select Orbit Planet Defence
4. Tap Storage
5. Tap Clear Data
6. Confirm deletion

Deleting Cloud Data

1. Open Google Play Games app
2. Tap Profile icon
3. Tap Settings
4. Tap Delete Play Games account & data
5. Select Orbit Planet Defence
6. Confirm deletion