Delete your Trenchline data

Trenchline: Zombie Defense is developed by Keyao Zhu. The game has no accounts, so there is no account to delete — here is every kind of data it involves and how to remove it.

1. Game progress and settings — on your device, and its cloud backup

Your current run, gold, buildings, Armory upgrades, Ordnance Points and settings are stored on your device. We never receive them.

Uninstall Trenchline, or
on Android: Settings → Apps → Trenchline → Storage → Clear storage.

From version 1.0.1 your lasting progress is also backed up to your own cloud account, which uninstalling doesn't remove (we can't see or delete it — it's in your account):

Android: Google Play Games → your profile → Settings → Delete Play Games account & data, where you can delete just this game's data.
iOS: Settings → [your name] → iCloud, where you can turn off iCloud for Trenchline or manage what's stored.

Your phone's own backups (Android Backup, iCloud Backup) may include the game's data too; they're managed in your device settings. If you can't remove something, email us and we'll help.

2. Crash reports and session records — deleted automatically after 90 days, or on request

When the game crashes or hits an error, a report is sent to our crash-reporting service (Sentry): the error and where in the code it happened, the game's last technical log messages, device model, operating-system version, app version, and a random identifier for the installation. Each start of the game also sends a short session record (started, ended, crashed or not). None of it contains a name, email address or account.

Kept for at most 90 days, then deleted automatically.
To have them deleted sooner, email worldtab.app@gmail.com with the subject [Trenchline] Delete my data, and tell us your device model and roughly when you played (reports aren't linked to your identity, so that's how we find them). We delete matching reports within 30 days and reply to confirm.

3. Gameplay statistics (version 1.0.2 and later) — kept 2 months

Where you've allowed it (consent is asked for in the EU, UK and Switzerland), gameplay events are sent to Google Analytics for Firebase with a random identifier for the installation — never your name, email or advertising ID. They're deleted after 2 months. Uninstalling and reinstalling starts a new identifier. To withdraw consent: Settings → Privacy in the game. To have your installation's statistics deleted sooner, email us (as in section 2).

4. Advertising data (version 1.0.1 and later)

Google AdMob collects device data when it loads or shows an optional video ad, and keeps it under Google's own policy; we don't receive it. You can reset or delete your advertising ID in your Android settings, and change your ad consent under Settings → Privacy in the game (where consent is asked for).

5. Purchases

Payments are handled by Google Play or the App Store. We never see your payment details; your purchase history is kept by Google or Apple under their own policies.

6. Leaderboard scores and achievements (optional) — delete them in Google Play Games or Game Center

If you're signed in to Google Play Games (Android) or Game Center (iOS), your best wave on each map and the achievements you unlock are sent to that service, which keeps them with your player profile (your player ID, nickname and picture). We never receive your account details, so they're deleted there:

Android: open Google Play Games → your profile → Settings → Delete Play Games account & data, where you can delete just this game's data or your whole Play Games profile.
iOS: Settings → Game Center, where you can sign out or manage your profile; Apple handles deleting Game Center data on request.

删除你的数据（中文）

游戏进度和设置保存在你的设备上：卸载游戏，或在设置 → 应用 → Trenchline → 存储 → 清除存储，即可删除。 1.0.1 起长期进度还会备份到你自己的云账号，卸载不会删除它（我们看不到也删不了）：安卓在 Google Play 游戏 → 个人资料 → 设置 → 删除 Play 游戏账号和数据（可只删这款游戏的数据）；iOS 在设置 → [你的名字] → iCloud 里关闭本游戏的 iCloud 或管理存储内容。手机自己的系统备份（安卓备份、iCloud 云备份）也可能包含游戏数据，在设备设置里管理。

崩溃报告和每次启动的会话记录最多保留 90 天后自动删除；游戏数据统计（1.0.2 起，欧盟/英国/瑞士需同意）保留 2 个月，重装游戏会换一个新的随机标识；想提前删除，请发邮件到 worldtab.app@gmail.com，标题写 [Trenchline] Delete my data，并说明设备型号和大致游玩时间，我们会在 30 天内删除并回复确认。广告数据（1.0.1 起）由 Google AdMob 收集并按其政策保存，可在安卓设置里重置广告 ID，在游戏设置 → 隐私里更改广告同意。

排行榜成绩和成就（可选）：只有登录了 Google Play 游戏（安卓）或 Game Center（iOS）时，才会把每张地图的最佳关数和解锁的成就发给对应服务，连同你在那里的玩家 ID、昵称和头像由 Google 或 Apple 保存，我们收不到你的账号信息。删除方法：安卓在 Google Play 游戏 → 个人资料 → 设置 → 删除 Play 游戏账号和数据（可只删这款游戏的数据）；iOS 在设置 → Game Center 里退出或管理，删除数据可向 Apple 申请。

Full details: Privacy Policy §7.