diff --git a/README.md b/README.md
index 3cdacbb..4834f0a 100644
--- a/README.md
+++ b/README.md
@@ -56,7 +56,7 @@ Built with **Kotlin**, **Jetpack Compose**, and **Material Design 3**.
 [![Target ABI](https://img.shields.io/badge/ABI-arm64--v8a-blue?style=flat)](https://developer.android.com/ndk)
 [![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)
 
-[English](#-english) | [ภาษาไทย](#-ภาษาไทย)
+[ภาษาไทย](README.md) | [English](README_EN.md) | [简体中文](README_ZH.md)
 
 </div>
 
diff --git a/README_EN.md b/README_EN.md
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+# GaCy Android
+
+[ภาษาไทย](README.md) | English | [简体中文](README_ZH.md)
+
+GaCy Android is an Android companion and local server manager for the
+GaC-hkrpg-go project. The
+port is in progress: the app starts the Go SDK and game servers in a foreground
+service, or connects to an existing server.
+
+## Current status
+
+- An ARM64 debug build was tested on a physical phone: the user confirmed game
+  login, in-game map teleport, and restarting the server after an update.
+- The Go SDK, shared-data, game-server and KCP tests passed. These checks do not
+  establish that every game feature works on Android.
+- Character settings from the older ppSR runtime are not yet connected to the
+  Go runtime. `/give` and `/heal` are not implemented by the Go command API.
+
+## Features
+
+- Start, stop and restart the local server; connect to a remote server and
+  monitor its SDK health.
+- View and copy server logs, send GM commands and open the SRTool web app.
+- Use the game's own map to teleport. There is no separate teleport page in
+  the app navigation.
+- Submit an Unstuck request. The app reports it as queued only when the server
+  supplies a request ID; this does not confirm the game has processed it.
+- Configure the host and ports and display the actual app version in Settings.
+
+`/max` updates avatar level, promotion and rank while preserving other save
+fields. `/teleport <plane_id> [floor_id]` saves the scene for the next game
+connection. Both have automated tests but have not been verified in the game.
+`/clear lineup` is rejected because the active team cannot be empty.
+
+## Build
+
+Requirements: Android SDK 35, JDK 17 or 21, Go, Python, and a local checkout of
+GaC-hkrpg-go. The app requires Android 8.0 (API 26) or newer. Normal debug builds
+target ARM64.
+
+```powershell
+python tools/package_go_runtime.py <path-to-GaC-hkrpg-go>
+.\gradlew.bat testDebugUnitTest assembleDebug
+```
+
+The packaging script uses the current Go source and resources, and seeds
+player data from committed defaults. The APK is written to
+`app/build/outputs/apk/debug/app-debug.apk` and copied to the project root as
+`GaCy-Android-<versionName>-debug.apk`. APK files are ignored by Git.
+
+For the x86_64 emulator, use `--emulator` when packaging and add
+`-PgacyEmulator` to the Gradle command. These test executables are not part of
+the normal ARM64 build.
+
+## Runtime and network configuration
+
+The Go runtime stores its files under the app's private `files/gacy-go`
+directory, separate from old ppSR data. An update preserves player data and
+existing hotfix entries, while adding new bundled versions. A completely empty
+cached version does not override available bundled hotfix data.
+
+Set the Host in Settings to the address the game client uses to reach the
+phone. Use `127.0.0.1` when both run on the same device. Configure the SDK and
+game ports as needed; changes apply after restarting the server. Redirecting
+the game client's dispatch traffic remains a separate setup step. The Settings
+connection test checks the values currently entered; remote monitoring reports
+an error after three consecutive failed SDK health checks.
diff --git a/README_ZH.md b/README_ZH.md
new file mode 100644
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+++ b/README_ZH.md
@@ -0,0 +1,57 @@
+# GaCy Android
+
+[ภาษาไทย](README.md) | [English](README_EN.md) | 简体中文
+
+GaCy Android 是 GaC-hkrpg-go
+的 Android 辅助应用和本地服务器管理器。移植仍在进行中：应用可通过前台服务启动
+Go SDK 和游戏服务器，也可连接已有的远程服务器。
+
+## 当前状态
+
+- 已在实体手机上测试 ARM64 调试版：用户确认可以登录游戏、使用游戏内地图传送，
+  以及在更新后重新启动服务器。
+- Go SDK、共享数据、游戏服务器和 KCP 测试已通过；这不代表所有游戏功能均已在
+  Android 客户端验证。
+- 旧版 ppSR 的角色设置尚未接入 Go 运行时。Go 命令 API 尚不支持 `/give` 和 `/heal`。
+
+## 功能
+
+- 启动、停止和重启本地服务器；连接远程服务器并监控 SDK 健康状态。
+- 查看和复制服务器日志、发送 GM 命令，以及打开 SRTool 网页。
+- 使用游戏内地图传送；应用导航中没有单独的传送页面。
+- 提交 Unstuck 请求。只有服务器返回请求 ID 时，应用才显示请求已排队；
+  这不表示游戏已经处理成功。
+- 在设置中配置主机和端口，并显示应用的实际版本。
+
+`/max` 修改角色等级、晋阶和星魂，同时保留存档的其他字段。
+`/teleport <plane_id> [floor_id]` 保存下次连接时使用的场景。
+两者已通过自动测试，但尚未在游戏内验证。由于当前队伍不能为空，
+`/clear lineup` 会被拒绝。
+
+## 构建
+
+需要 Android SDK 35、JDK 17 或 21、Go、Python，以及本地 GaC-hkrpg-go 源码。
+应用最低支持 Android 8.0（API 26）；普通调试版本面向 ARM64。
+
+```powershell
+python tools/package_go_runtime.py <path-to-GaC-hkrpg-go>
+.\gradlew.bat testDebugUnitTest assembleDebug
+```
+
+打包脚本使用当前 Go 源码和资源，并从已提交的默认文件初始化玩家数据。
+APK 输出至 `app/build/outputs/apk/debug/app-debug.apk`，同时复制到项目根目录，
+文件名为 `GaCy-Android-<versionName>-debug.apk`。APK 已被 Git 忽略。
+
+如果使用 x86_64 模拟器，请在打包时添加 `--emulator`，并在 Gradle 命令中添加
+`-PgacyEmulator`。模拟器测试程序不包含在普通 ARM64 构建中。
+
+## 运行时与网络配置
+
+Go 运行时数据保存在应用私有目录 `files/gacy-go`，与旧版 ppSR 数据分开。
+更新时保留玩家数据和已有 hotfix 条目，同时加入新版本。若之前查询失败留下完全为空的
+缓存条目，SDK 会优先使用可用的内置 hotfix 数据。
+
+在设置中将 Host 填为游戏客户端连接手机所使用的地址；两者在同一台设备上运行时可使用
+`127.0.0.1`。按需配置 SDK 和游戏端口，修改后重启服务器生效。游戏客户端的 dispatch
+流量重定向仍需单独设置。连接测试使用当前输入的值；远程模式在 SDK 健康检查连续三次
+失败后报告错误。