Privacy Policy

Last Updated: September 2026

1. Introduction

SpaceNode ("we", "our", or "us") is committed to protecting your privacy. This Privacy Policy explains how we collect, use, and safeguard your information when you use Gravewalker ("the Game").

2. Information We Collect

• Account Identifier: When you first launch the Game, an anonymous account is created automatically using Firebase Authentication. This account is identified by a randomly generated user ID and does not contain your name, email, or other personal details. This user ID is the key under which the cloud save, purchase records, leaderboard entries, analytics and abuse-prevention records described below are stored.
• Optional Sign-In: If you choose to link your account with Sign in with Apple or Google Sign-In (to back up progress across devices), we receive an authentication identifier from that provider. We do not use it for any purpose other than account linking and progress restoration.
• Nickname: A display name you choose. It is shown publicly on the in-game leaderboards.
• Game Data (Cloud Save): Your progress (chapters, items, in-game currencies and their balances, upgrades), scores, and combat power, stored on your device and synced to our cloud servers (Google Firebase / Firestore) under your account ID for backup, restoration and leaderboards. The cloud save also records your in-app purchase history for this Game: which products you bought and how many times, an approximate cumulative amount spent, and whether purchases were made in a test environment. Adjustments made by our support team (for example, items or currency granted in response to a support request) are delivered through the cloud save as well.
• Purchase and Refund Data: In-app purchases are processed by Apple; we never receive or store your payment card details. Each purchase is tagged with an anonymous token derived from your account ID so that Apple's server notifications can be matched to your account. Apple sends our server (Google Firebase Cloud Functions / Firestore) a notification for each purchase and for each refund or revocation, including product, quantity, price, currency, storefront country, purchase date, transaction identifiers and, for refunds, the reason category. We keep these records as a purchase and refund ledger tied to your account ID. When Apple refunds or revokes a purchase, the corresponding Virtual Items (or equivalent value) are deducted from your account, on our server and on your next launch.
• Refund Review Information Shared with Apple: When you request a refund for a consumable purchase, Apple may ask us for information to evaluate the request. In that case we send Apple: whether the purchased in-game currency has already been spent (a consumption status derived from your current balance), how long your account has existed (in the ranges Apple defines), your lifetime purchase amount and refund history in this Game (also in Apple's ranges), and our refund preference. We do not report play time. Refund decisions are made solely by Apple.
• Usage & Diagnostics Data: We use Google Analytics for Firebase to collect gameplay events (e.g., battles played, progression, purchases with price and currency, earning and spending of in-game currencies with running balances, and item fusion, disassembly and grants) and Firebase Crashlytics to collect crash reports and device diagnostics. These events are linked to your account ID (which we set as the analytics user ID) together with your character level, highest chapter and a bucketed spending tier, so that we can resolve support disputes, tune the Game through Firebase Remote Config, and detect abuse. Analytics data is exported to Google BigQuery for server-side analysis.
• Anti-Cheat and Device Integrity Data: The Game includes NHN AppGuard, a third-party anti-tampering module that checks for jailbroken devices, hooking tools, code modification and memory manipulation. Detection results are linked to your account ID and reported to us through Firebase Analytics, alongside our own integrity signals (for example, save-data checksum violations, periodic anti-macro checks that measure your response timing, and the result of a clock-tamper check). On our servers we also compare your cloud save balances against the analytics ledger. Accounts that these analyses identify as cheating, tampering or abusing refunds may be sanctioned, including removal of leaderboard entries, adjustment of balances, or a permanent ban.
• Multiplayer, Leaderboards and Community Data: Leaderboard entries (nickname, score, chapter, combat power, a gear profile summary and VIP tier) are stored in Firestore and shown publicly; you can hide your entry in the Game. Raid rooms run on Firebase Realtime Database and share your nickname, account ID and combat state with the other participants in the room for the duration of the raid. In-game activity tickers store your nickname together with your account ID for rules validation and abuse tracing (the ID is not displayed). If you report another player, we store your account ID, the reported player's ID and nickname, the reason and the time. Nickname enforcement records (warnings, restrictions) are stored with your account.
• Advertising Data: When you choose to watch a rewarded advertisement, our advertising partner Google AdMob may collect device identifiers, IP address, and ad interaction data to serve and measure ads, as described in Google's privacy policy.
• Marketing Measurement (Meta): The Game includes the Meta (Facebook) SDK to measure the effectiveness of our advertising campaigns. After the consent flow, the SDK sends app events such as installs, app activations and in-app purchases (including the purchase amount and currency) to Meta. Your device's advertising identifier (IDFA) is shared with Meta only if you allow tracking in the App Tracking Transparency prompt; otherwise attribution relies on Apple's privacy-preserving SKAdNetwork.
• Diagnostics: Basic crash and performance information to keep the Game stable.

We do not collect your precise location, contacts, photos, health data, or any data from other apps. We do not track you across apps or websites owned by other companies unless you allow tracking in the App Tracking Transparency prompt; if you allow it, our advertising partners (Google AdMob and Meta) may use your device's advertising identifier for ad attribution and measurement, as described in Section 5.

3. How We Use Your Information

• Operate the Game and save/restore your progress
• Operate global leaderboards, seasonal rankings, and multiplayer features such as raids
• Deliver purchased items, support grants, and rewarded-ad rewards
• Keep purchase and refund records, process refunds and revocations, and respond to Apple's refund review requests
• Detect cheating, tampering, fraud, and abuse, and apply account sanctions
• Measure the effectiveness of our advertising campaigns
• Fix bugs and improve stability and balance
• Comply with legal obligations

4. Third-Party Services

The Game uses the following third-party services, each governed by its own privacy policy:

• Google Analytics for Firebase / Firebase Crashlytics — usage analytics, anti-cheat signals and crash reporting. Firebase Privacy
• Google Firebase (Authentication, Firestore, Realtime Database, Cloud Functions, Remote Config, App Check) and Google BigQuery — account, cloud save, purchase ledger, raid, leaderboard and abuse-analysis infrastructure. Firebase Privacy
• Google Sign-In / Sign in with Apple — optional account linking. Google Privacy Policy · Apple Privacy Policy
• Google AdMob with the Google User Messaging Platform consent form — rewarded advertising and consent management. Google Privacy Policy
• Meta (Facebook) SDK — advertising campaign measurement. Meta Privacy Policy
• NHN AppGuard (NHN Cloud) — anti-tampering and device integrity detection.
• Apple App Store / StoreKit — in-app purchase processing, App Store Server Notifications, and refund review. Apple Privacy Policy

5. Advertising and Consent

Rewarded ads are optional — they are shown only when you actively choose to watch one in exchange for in-game rewards. For users in the European Economic Area, the UK, and Switzerland, we display a consent form (Google User Messaging Platform) before serving ads, and you may choose non-personalized ads. You can also limit ad personalization in your device settings (Settings > Privacy > Apple Advertising / Tracking).

The same consent form also presents Apple's App Tracking Transparency prompt. If you allow tracking, Google AdMob and the Meta SDK may access your device's advertising identifier (IDFA) for personalized ads and ad attribution; if you decline, they do not, and attribution uses Apple's SKAdNetwork instead. You can change this choice at any time in Settings > Privacy & Security > Tracking.

6. Data Storage, Retention, and Deletion

Game data is stored locally on your device and in Google Firebase data centers. We retain your account data for as long as your account exists. You can permanently delete your account and all associated cloud data at any time from Settings > Account > Delete Account inside the Game. Deletion is irreversible and takes effect immediately; residual backups are purged within a reasonable period. Purchase and refund records, and records of abuse-prevention actions such as sanctions, may be retained after account deletion only as long as needed for accounting, refund-review, dispute-resolution and enforcement purposes.

7. Children's Privacy

The Game is not directed at children under 13 (or the minimum age required in your country). We do not knowingly collect personal information from children. If you believe a child has provided us personal information, contact us and we will delete it.

8. International Data Transfers

Our servers are operated by Google Cloud and may be located outside your country. Where required, transfers rely on appropriate safeguards such as standard contractual clauses implemented by our processors.

9. Your Rights

Depending on your region (including GDPR for the EEA/UK and CCPA/CPRA for California), you may have the right to access, correct, delete, or export your data, object to or restrict processing, and lodge a complaint with a supervisory authority. Most of these can be exercised directly in the Game (account deletion, nickname change); for anything else, contact us at the address below. We do not sell your personal information. We do not use it for cross-app tracking unless you allow tracking in the App Tracking Transparency prompt (see Section 5), and you can withdraw that permission at any time in your device settings.

10. Changes to This Policy

We may update this Privacy Policy from time to time. Changes will be posted on this page with an updated "Last Updated" date. Material changes will be additionally announced in the Game.

11. Contact Us

If you have questions about this Privacy Policy or your data, contact us at: spacenode.min@gmail.com