After starting the game, you should get a message about the update. Next, please tap the Update button. The application will automatically open the game's Store page, where you can download the update.

You can also update the game manually.

For iOS devices:

If you use a version older than iOS 11, then you need to do the following:
1. Open the App Store.
2. Go to the Updates tab.
3. Select Riddleside: Fading Legacy from the list and tap the Update button.
4. If you were unable to find the application in the Updates tab, then drag the screen downward and release it to refresh the list.

If you use version iOS 11 or higher:
1. Open the App Store.
2. Tap on the Account icon in the upper right corner of the screen.
3. In the Available Updates section, select Riddleside: Fading Legacy from the list and tap the Update button.
4. If you were unable to find the application in the Available Updates section, then drag the screen downward and release it to refresh the list.

For Android devices:

1. Open the Google Play Store app.
2. Tap the Menu icon in the upper left corner -> My apps & games.
3. Select Riddleside: Fading Legacy from the list and tap it.
4. Tap Update when the game page opens.

You can also adjust your device settings to automatically download updates for the apps you have installed.
1. Open the Google Play Store app.
2. Tap the Menu icon in the upper left corner -> Settings.
4. Tap Auto-update apps.
5. Choose one of the following:
- Auto-update apps over any network. Updates will be downloaded via both Wi-Fi and your mobile network.
- Auto-update apps over Wi-Fi only. Updates will only start downloading when your device has a Wi-Fi connection.