Core gameplay does not require an internet connection or a game account. Internet access is required for Apple services such as downloading the game, receiving updates, completing an in-app purchase, or synchronizing save data through iCloud Documents. Optional Game Center leaderboards and achievements also require internet access and a signed-in Game Center account. The game has no separate account system, and all core gameplay remains available without Game Center.

Game Center is optional. When you are signed in, the game submits your deepest-depth score and achievement progress to Apple Game Center. This lets you view your achievements and compare leaderboard results, and keeps that Game Center progress available on supported devices using the same Game Center account. Game Center achievements do not grant additional in-game items or currency.

A gray or locked icon means the game cannot confirm an active Game Center sign-in. Check your internet connection, open iPhone or iPad Settings > Game Center, and confirm that you are signed in. Then return to the game and try again; restart the game once if the status does not refresh. If you previously dismissed Apple’s sign-in screen, sign in from Settings before returning. You can continue playing normally without Game Center.

Check that the device has a working internet connection, is signed in to the App Store, and allows in-app purchases. Keep the game open briefly while Apple confirms the transaction and the game saves the delivery record. Avoid tapping another purchase while one is still being processed. If Apple charged you but the crystals do not appear, restart the game once and then contact support with the product, approximate purchase time, game version, and device model. Do not send payment-card details or Apple Account credentials.

Progress and settings are stored locally on your device. When iCloud is enabled for the game, a save copy is also stored in Apple’s iCloud Documents and synchronized across supported devices signed in to the same Apple Account. This helps keep progress available when you change devices. Allow iCloud time to finish synchronizing before opening the game on another device.

Confirm that both devices use the same Apple Account, iCloud Drive is enabled, iCloud access is allowed for the game, and both devices have an internet connection. Close the game on the first device after saving, allow synchronization to complete, and then open it on the second device. If the problem continues, contact support before uninstalling the game.

Close the game completely, restart your device, confirm that enough storage space is available, and install the latest game and iOS updates. If the problem continues, email the device model, iOS version, game version, and a description of when the issue occurs.

Open Settings from the game’s main screen and choose Language. The game supports English, Simplified Chinese, Traditional Chinese, Japanese, and Korean.

The game does not display advertisements or require a game account. GameAnalytics-enabled versions use GameAnalytics for limited product analytics, including a persistent IDFV-based identifier, device and app version information, coarse location derived from the network, gameplay milestones, session activity, and optional purchase outcomes. The current configuration does not request ATT, submit IDFA-based advertising events, upload automatic Unity errors, or send raw StoreKit transaction identifiers or receipts to GameAnalytics. Optional Game Center features send the player’s deepest-depth score and achievement progress to Apple, but the game does not send Game Center identifiers, nicknames, scores, or achievement progress to GameAnalytics or a developer-operated server. When enabled, save synchronization is provided by Apple’s iCloud Documents. Read the full Privacy Policy for details. Apple explains its handling of Game Center information in Game Center & Privacy.

Email dxl707963406@outlook.com with the subject “9999m Privacy Request.” Do not send payment credentials or your Apple Account password. We may need the GameAnalytics user identifier from the affected installation to locate an analytics record, and we will explain how to find it if required.

Email dxl707963406@outlook.com with the game version, device model, iOS version, steps to reproduce the problem, and screenshots if available.