Devices below OS 6.0 and IOS 10 will not be supported in the future.

So, if you're using that version or less, it's hard to play anymore without Android or IOS being updated.
For stable gameplay, we recommend you to use it on OS 6 and iOS 12 or higher devices.

The support specifications listed in the store will be updated soon.

NOTE: For games with data sync, we recommend you to sync your data in advance. That way, you won't lose your data.

Thank you for understanding.