Gem Rail（宝石矿场）隐私政策

开发者：Koowoo Dev　·　更新日期：2026 年 10 月 16 日（初版 2026 年 9 月 24 日起含广告条款）

一句话版本

Gem Rail 是一款单机解谜游戏，不需要注册或登录。我们自己不收集、不存储、不出售任何个人信息。游戏内有可选的激励视频广告，由 Google AdMob 投放；广告 SDK 会为投放和计量广告处理有限的设备信息，详见下文「广告与第三方服务」。除广告外，游戏不访问网络。

我们收集哪些信息

我们自己不收集任何信息。游戏不要求注册或登录，不读取联系人、精确位置、相机、麦克风或存储。游戏里的 Google AdMob 广告 SDK 会收集下文列出的设备信息，这些信息由 Google 接收和处理，我们看不到其中能识别你个人的部分。

保存在你设备上的数据

游戏进度（打到哪一关、各关成绩）和设置（音乐、音效、动效、震动）只保存在你的设备本地，用于下次打开时接着玩。这些数据不会离开你的设备；卸载游戏即全部删除。

广告与第三方服务

游戏内的奖励（加时间、补撤回、补调车、多开一格轨道）可以通过自愿观看激励视频广告获得；不看广告也能正常游玩，你不点看广告的按钮就不会播放广告。广告由 Google AdMob（Google LLC）投放。

游戏使用 Google 移动广告 SDK（Google Mobile Ads SDK）。它会自动收集并与 Google 共享以下信息：

设备标识符：Android 广告 ID（Advertising ID）、应用组 ID（App Set ID）；
IP 地址，以及由它推算的大致位置（不是精确位置）；
与应用和广告的互动：例如打开应用、点按、观看广告视频、广告的展示与点击；
诊断信息：应用和广告 SDK 的性能信息，以及设备型号、系统版本等设备信息。

用途：投放广告和计量广告效果、统计分析、防止欺诈和保障安全。共享：这些信息由 Google 收集；在你同意的范围内，Google 可能与参与投放广告的合作伙伴共享（欧洲地区的同意弹窗里列出了这些合作方）。信息在传输过程中经 TLS 加密。

Google 如何处理这些信息，以 Google 隐私政策和 Google 如何使用合作伙伴网站或应用的信息为准。我们不接入其他分析或广告 SDK。

你的选择，以及怎么撤回同意

欧洲经济区、英国和瑞士的玩家首次打开游戏时会看到同意弹窗，可以选择同意或不同意。之后随时可以在游戏主菜单「设置 → 隐私选项」里更改或撤回选择。在法律有类似要求的其他地区（例如美国部分州），「设置」里也会出现「隐私选项」。
在 Android 系统设置里可以重置或删除广告 ID（一般在「设置 → Google → 广告」，不同手机的位置可能不同）。删除后，广告 SDK 不再能读到你的广告 ID，你看到的广告不再按广告 ID 个性化。
卸载游戏后，游戏和广告 SDK 都不再从这台设备收集任何信息。已经发给 Google 的信息按 Google 隐私政策处理，你可以按其中写明的方式向 Google 查询或要求删除。

儿童

本游戏面向 13 岁及以上用户。我们不会有意收集 13 岁以下儿童的个人信息。

政策变更

本政策有变化时，我们会更新本页并修改上面的更新日期。

联系我们

关于本政策的问题，请发邮件至：colcs2077@163.com

Gem Rail Privacy Policy

Developer: Koowoo Dev · Last updated: October 16, 2026 (advertising terms included since September 24, 2026)

In one sentence

Gem Rail is a single-player puzzle game with no account or sign-in. We ourselves do not collect, store or sell any personal information. The game shows optional rewarded video ads served by Google AdMob; the ad SDK processes limited device information to serve and measure ads, as described under "Advertising and third-party services". Apart from ads, the game does not access the network.

Information we collect

We collect nothing ourselves. The game requires no account or sign-in and does not read contacts, precise location, camera, microphone or storage. The Google AdMob ad SDK inside the game collects the device information listed below; it is received and processed by Google, and we cannot see any part of it that identifies you personally.

Data stored on your device

Your progress (levels reached, results) and settings (music, sound, motion, vibration) are saved only on your device so you can continue where you left off. They never leave your device and are removed when you uninstall the game.

Advertising and third-party services

In-game rewards (extra time, undos, cart calls, an extra rail slot) can be earned by voluntarily watching rewarded video ads. The game is fully playable without watching any, and no ad plays unless you tap a button to watch one. Ads are served by Google AdMob (Google LLC).

The game uses the Google Mobile Ads SDK, which automatically collects and shares the following with Google:

Device identifiers: the Android Advertising ID and the App Set ID;
IP address, and the approximate location derived from it (not precise location);
App and ad interactions, such as app launches, taps, ad video views, ad impressions and clicks;
Diagnostics: performance information about the app and the ad SDK, and device information such as model and OS version.

Purposes: serving and measuring ads, analytics, and fraud prevention and security. Sharing: this information is collected by Google and, to the extent you consent, may be shared with partners that take part in serving ads (the consent form shown in Europe lists them). It is encrypted in transit using TLS.

Google handles this information under the Google Privacy Policy and How Google uses information from sites or apps that use our services. We use no other analytics or ad SDKs.

Your choices and how to withdraw consent

Players in the EEA, the UK and Switzerland see a consent form the first time they open the game and can choose to consent or not. You can change or withdraw your choice at any time under Settings → Privacy in the game's main menu. In other places where the law has similar requirements (for example some US states), the Privacy option also appears in Settings.
In Android settings you can reset or delete your Advertising ID (usually under Settings → Google → Ads; the location may differ by phone). Once it is deleted, the ad SDK can no longer read your Advertising ID and ads are no longer personalised by it.
After you uninstall the game, neither the game nor the ad SDK collects anything from that device. Information already sent to Google is handled under the Google Privacy Policy, which explains how to access or request deletion of it.

Children

The game is intended for users aged 13 and older. We do not knowingly collect personal information from children under 13.

Changes to this policy

If this policy changes, we will update this page and the "Last updated" date above.

Contact

Questions about this policy: colcs2077@163.com