diff --git a/assets/bin/main/index.html b/assets/bin/main/index.html
index 4ec8209..a8b6601 100644
--- a/assets/bin/main/index.html
+++ b/assets/bin/main/index.html
@@ -81,7 +81,6 @@
     <div id="mainWindowBox">
       <webview
         id="mainWindow"
-        src="./loading.html"
         webpreferences="nativeWindowOpen=yes"
         allowpopups
       ></webview>
diff --git a/docs/IPC.md b/docs/IPC.md
index 8d8a40c..931e71c 100644
--- a/docs/IPC.md
+++ b/docs/IPC.md
@@ -6,17 +6,16 @@
 
 下表列出了主进程接收到的请求：
 
-| ID  | 接收者        | 名称                    | 参数     | 说明                                             |
-| --- | ------------- | ----------------------- | -------- | ------------------------------------------------ |
-| 01  | ManagerWindow | start-game              | 无       | 启动游戏。                                       |
-| 02  | ManagerWindow | start-tool              | `id`     | 启动 `id` 对应的工具。                           |
-| 03  | ManagerWindow | close-manager           | 无       | 关闭 Manager 窗口。                              |
-| 04  | ManagerWindow | clear-cache             | 无       | 清理缓存（`appDataDir/static/`）                 |
-| 05  | ManagerWindow | update-user-config      | `config` | 更新主进程中的 `config` 并保存。                 |
-| 06  | GameWindow    | main-loader-ready       | 无       | 游戏宿主窗口已创建并初始化完毕，需要加载端口信息 |
-| 07  | sandbox       | sandbox-dirname-request | 无       | 返回当前的 `dirname`。                           |
-| 08  | sandbox       | sandbox-appdata-request | 无       | 返回当前的 `appDataDir`                          |
-| 09  | screenshot    | save-screenshot         | `buffer` | 对截屏进行保存。                                 |
+| ID  | 接收者        | 名称                    | 参数     | 说明                             |
+| --- | ------------- | ----------------------- | -------- | -------------------------------- |
+| 01  | ManagerWindow | start-game              | 无       | 启动游戏。                       |
+| 02  | ManagerWindow | start-tool              | `id`     | 启动 `id` 对应的工具。           |
+| 03  | ManagerWindow | close-manager           | 无       | 关闭 Manager 窗口。              |
+| 04  | ManagerWindow | clear-cache             | 无       | 清理缓存（`appDataDir/static/`） |
+| 05  | ManagerWindow | update-user-config      | `config` | 更新主进程中的 `config` 并保存。 |
+| 06  | sandbox       | sandbox-dirname-request | 无       | 返回当前的 `dirname`。           |
+| 07  | sandbox       | sandbox-appdata-request | 无       | 返回当前的 `appDataDir`          |
+| 08  | screenshot    | save-screenshot         | `buffer` | 对截屏进行保存。                 |
 
 ### 通用请求
 
diff --git a/src/bin/main/mainLoader.ts b/src/bin/main/mainLoader.ts
index f36c668..d9337bb 100644
--- a/src/bin/main/mainLoader.ts
+++ b/src/bin/main/mainLoader.ts
@@ -1,4 +1,4 @@
-import { ipcRenderer, screen as electronScreen } from 'electron'
+import { ipcRenderer } from 'electron'
 import i18n from '../../i18n'
 import Global from '../../manager/global'
 import { MajsoulPlus } from '../../majsoul_plus'
@@ -43,21 +43,24 @@ function showScreenshotLabel(src: string) {
   }, 8000)
 }
 
-ipcRenderer.on('take-screenshot', (event, scaleFactor: number) => {
-  if (webContents) {
-    webContents.capturePage(
-      {
-        x: 0,
-        y: 0,
-        width: Math.floor(mainWindow.clientWidth * scaleFactor),
-        height: Math.floor(mainWindow.clientHeight * scaleFactor)
-      },
-      image => {
-        ipcRenderer.send('save-screenshot', image.toPNG())
-      }
-    )
+ipcRenderer.on(
+  'take-screenshot',
+  (event, index: number, scaleFactor: number) => {
+    if (webContents) {
+      webContents.capturePage(
+        {
+          x: 0,
+          y: 0,
+          width: Math.floor(mainWindow.clientWidth * scaleFactor),
+          height: Math.floor(mainWindow.clientHeight * scaleFactor)
+        },
+        image => {
+          ipcRenderer.send('save-screenshot', index, image.toPNG())
+        }
+      )
+    }
   }
-})
+)
 
 ipcRenderer.on('screenshot-saved', (event, filePath: string) => {
   showScreenshotLabel('file://' + filePath)
@@ -112,7 +115,6 @@ mainWindow.addEventListener('dom-ready', () => {
   if (!webContents) {
     webContents = mainWindow.getWebContents()
     webContents.setZoomFactor(1)
-    ipcRenderer.send('main-loader-ready')
 
     webContents.on('will-navigate', (event, url) => {
       if (isVanillaGameUrl(url)) {
@@ -136,11 +138,14 @@ mainWindow.addEventListener('dom-ready', () => {
 
 ipcRenderer.on(
   'load-url',
-  (event, url: string, port: number, http: boolean) => {
+  (event, url: string, port: number, http: boolean, partition?: string) => {
     serverInfo = { url, port, http }
     console.log('[Majsoul Plus] LoadURL', serverInfo)
 
-    mainWindow.loadURL(url)
+    if (partition) {
+      mainWindow.partition = partition
+    }
+    mainWindow.src = url
     mainWindowBox.style.width = '100vw'
     mainWindowBox.style.height = '100vh'
     mainWindowBox.style.transform = 'none'
@@ -152,7 +157,6 @@ ipcRenderer.on('get-local-storage', () => {
     'Object.entries(localStorage)',
     false,
     result => {
-      console.log(result)
       ipcRenderer.send('save-local-storage', result)
     }
   )
diff --git a/src/index.ts b/src/index.ts
index 5e22427..bbd402d 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -1,21 +1,21 @@
-import { app, ipcMain, dialog } from 'electron'
+import { app, dialog, ipcMain } from 'electron'
 import * as os from 'os'
 import * as path from 'path'
 import { UserConfigs } from './config'
 import { LoadExtension } from './extension/extension'
 import { Global, InitGlobal, Logger } from './global'
+import i18n from './i18n'
 import { LoadResourcePack } from './resourcepack/resourcepack'
-import { LoadServer, ListenServer } from './server'
+import { ListenServer, LoadServer } from './server'
 import { LoadTool } from './tool/tool'
 import bossKey from './utilities/bossKey'
 import openFile from './utilities/openFile'
 import sandbox from './utilities/sandbox'
 import screenshot from './utilities/screenshot'
-import { initGameWindow, GameWindow } from './windows/game'
+import { initPlayer, AudioPlayer } from './windows/audioPlayer'
+import { GameWindows, initGameWindow } from './windows/game'
 import { initManagerWindow, ManagerWindow } from './windows/manager'
 import { initToolManager } from './windows/tool'
-import { initPlayer } from './windows/audioPlayer'
-import i18n from './i18n'
 
 // 初始化全局变量
 InitGlobal()
@@ -107,7 +107,7 @@ const shouldQuit = app.makeSingleInstance((argv, directory) => {
   } else {
     // GameWindow Mode
     if (argv.length > 2 + Number(process.env.NODE_ENV === 'development')) {
-      dialog.showMessageBox(GameWindow, {
+      dialog.showMessageBox(AudioPlayer, {
         type: 'info',
         title: i18n.text.main.programName(),
         // TODO: i18n
@@ -144,6 +144,7 @@ app.on('ready', () => {
     if (!process.env.SERVER_ONLY) {
       // 初始化游戏窗口
       initGameWindow()
+      GameWindows.newWindow()
     } else {
       // 通过 audioPlayer 窗口阻止程序退出
       initPlayer()
diff --git a/src/utilities/bossKey.ts b/src/utilities/bossKey.ts
index b774bfe..a676a41 100644
--- a/src/utilities/bossKey.ts
+++ b/src/utilities/bossKey.ts
@@ -1,24 +1,19 @@
 import Utility from './utility'
 import { BrowserWindow, globalShortcut } from 'electron'
-import { MajsoulPlus } from '../majsoul_plus'
-import { GameWindowStatus, GameWindow } from '../windows/game'
-import { ManagerWindow, ManagerWindowStatus } from '../windows/manager'
+import { GameWindows } from '../windows/game'
+import { ManagerWindow } from '../windows/manager'
 
-function hideWindow(window: BrowserWindow, option: MajsoulPlus.WindowStatus) {
-  if (window) {
-    option.visible = window.isVisible()
-    option.muted = ManagerWindow.webContents.isAudioMuted()
+function hideWindow(window: BrowserWindow) {
+  if (window && !window.isDestroyed()) {
     window.hide()
     window.webContents.setAudioMuted(true)
   }
 }
 
-function showWindow(window: BrowserWindow, option: MajsoulPlus.WindowStatus) {
-  if (window) {
-    if (option.visible) {
-      window.show()
-    }
-    window.webContents.setAudioMuted(option.muted)
+function showWindow(window: BrowserWindow) {
+  if (window && !window.isDestroyed()) {
+    window.show()
+    window.webContents.setAudioMuted(false)
   }
 }
 
@@ -34,12 +29,12 @@ class BossKey extends Utility {
     globalShortcut.register('Alt+X', () => {
       if (this.isActive) {
         // 备份窗口信息 & 隐藏窗口
-        hideWindow(ManagerWindow, ManagerWindowStatus)
-        hideWindow(GameWindow, GameWindowStatus)
+        hideWindow(ManagerWindow)
+        GameWindows.forEach(window => hideWindow(window))
       } else {
         // 重新显示窗口
-        showWindow(ManagerWindow, ManagerWindowStatus)
-        showWindow(GameWindow, GameWindowStatus)
+        showWindow(ManagerWindow)
+        GameWindows.forEach(window => showWindow(window))
       }
     })
   }
diff --git a/src/utilities/screenshot.ts b/src/utilities/screenshot.ts
index 5db23b0..765e99f 100644
--- a/src/utilities/screenshot.ts
+++ b/src/utilities/screenshot.ts
@@ -1,8 +1,8 @@
-import Utility from './utility'
-import { ipcMain, app, clipboard, nativeImage } from 'electron'
+import { app, clipboard, ipcMain, nativeImage } from 'electron'
 import * as path from 'path'
 import { writeFile } from '../utils'
-import { GameWindow } from '../windows/game'
+import { GameWindows } from '../windows/game'
+import Utility from './utility'
 
 class ScreenShot extends Utility {
   constructor() {
@@ -11,7 +11,7 @@ class ScreenShot extends Utility {
   }
 
   protected execute() {
-    ipcMain.on('save-screenshot', (event, buf: Buffer) => {
+    ipcMain.on('save-screenshot', (event, index: number, buf: Buffer) => {
       // 接收到的截图 Buffer
       const buffer: Buffer = buf
       // 由主进程进行保存
@@ -23,7 +23,7 @@ class ScreenShot extends Utility {
       // 写入文件
       writeFile(filePath, buffer).then(() => {
         // 通知渲染进程（游戏宿主窗口）截图已保存，并由渲染进程弹窗
-        GameWindow.webContents.send('screenshot-saved', filePath)
+        GameWindows.get(index).webContents.send('screenshot-saved', filePath)
       })
       // 写入图像到剪切板
       clipboard.writeImage(nativeImage.createFromBuffer(buffer))
diff --git a/src/utils.ts b/src/utils.ts
index e018ab9..9a62e0c 100644
--- a/src/utils.ts
+++ b/src/utils.ts
@@ -187,7 +187,7 @@ export function mkdirsSync(dirname: string) {
 export function getRemoteUrl(originalUrl: string): string {
   return (
     RemoteDomains[UserConfigs.userData.serverToPlay].domain +
-    originalUrl.replace(/^\/(0\/)?/g, '')
+    originalUrl.replace(/^\/\d\/?/g, '')
   )
 }
 
diff --git a/src/windows/game.ts b/src/windows/game.ts
index 8cf831b..d266753 100644
--- a/src/windows/game.ts
+++ b/src/windows/game.ts
@@ -4,6 +4,7 @@ import {
   dialog,
   ipcMain,
   Menu,
+  MenuItem,
   screen
 } from 'electron'
 import { AddressInfo } from 'net'
@@ -11,7 +12,6 @@ import * as path from 'path'
 import { SaveConfigJson, UserConfigs } from '../config'
 import { Global, Logger, RemoteDomains } from '../global'
 import i18n from '../i18n'
-import { MajsoulPlus } from '../majsoul_plus'
 import {
   CloseServer,
   httpServer,
@@ -24,66 +24,101 @@ import { AudioPlayer, initPlayer, shutoffPlayer } from './audioPlayer'
 import { ManagerWindow } from './manager'
 
 // tslint:disable-next-line
-export let GameWindow: BrowserWindow
-// tslint:disable-next-line
-export const GameWindowStatus: MajsoulPlus.WindowStatus = {
-  visible: false,
-  muted: false
+export class GameWindows {
+  private static windows: Map<number, BrowserWindow> = new Map()
+  private static windowIdCount = 0
+  private static windowCount = 0
+  static get size() {
+    return this.windowCount
+  }
+
+  static get(index: number) {
+    return this.windows.get(index)
+  }
+
+  static newWindow() {
+    const id = this.windowIdCount++
+    this.windowCount++
+    this.windows.set(id, newGameWindow(id))
+
+    if (id === 0) {
+      initPlayer()
+    }
+    return id
+  }
+
+  static destroyWindow(id: number) {
+    const window = this.windows.get(id)
+    this.windows.delete(id)
+
+    if (this.windowCount === 1) {
+      // 关闭后台音频播放器
+      shutoffPlayer()
+      // 关闭本地镜像服务器
+      CloseServer()
+      // 依据用户设置显示被隐藏的管理器窗口
+      if (UserConfigs.window.isManagerHide) {
+        if (ManagerWindow) {
+          ManagerWindow.show()
+        }
+      }
+    }
+    this.windowCount--
+  }
+
+  static forEach(callback: (window: BrowserWindow, id: number) => void) {
+    this.windows.forEach((window, id) => callback(window, id))
+  }
 }
 
 export function initGameWindow() {
+  ipcMain.on(
+    'save-local-storage',
+    (event: Electron.Event, localStorage: string[][]) => {
+      UserConfigs.localStorage[
+        RemoteDomains[UserConfigs.userData.serverToPlay.toString()].name
+      ] = localStorage.filter(arr => arr[1] !== '' && arr[1] !== 'FKU!!!')
+      SaveConfigJson(UserConfigs)
+      dialog.showMessageBox(AudioPlayer, {
+        type: 'info',
+        title: i18n.text.main.programName(),
+        // TODO: i18n
+        message: '保存帐号信息成功!',
+        buttons: ['OK']
+      })
+    }
+  )
+}
+
+export function newGameWindow(id: number) {
+  let window: BrowserWindow
+
   const config: BrowserWindowConstructorOptions = {
     ...Global.GameWindowConfig,
-    title: getGameWindowTitle(),
-    frame: !UserConfigs.window.isNoBorder
+    title: getGameWindowTitle(id),
+    frame: !UserConfigs.window.isNoBorder,
+    webPreferences:
+      GameWindows.size > 1
+        ? {
+            partition: String(id)
+          }
+        : {}
   }
 
   if (UserConfigs.window.gameWindowSize !== '') {
-    const windowSize: number[] = UserConfigs.window.gameWindowSize
+    const windowSize = UserConfigs.window.gameWindowSize
       .split(',')
       .map((value: string) => Number(value))
     config.width = windowSize[0]
     config.height = windowSize[1]
   }
 
-  GameWindow = new BrowserWindow(config)
+  window = new BrowserWindow(config)
 
   // 阻止标题更改
-  GameWindow.on('page-title-updated', event => event.preventDefault())
-
-  // 监听到崩溃事件，输出 console
-  GameWindow.webContents.on('crashed', () =>
-    Logger.warning(i18n.text.main.webContentsCrashed())
-  )
+  window.on('page-title-updated', event => event.preventDefault())
 
-  // 监听尺寸更改事件，用于正确得到截图所需要的窗口尺寸
-  GameWindow.on('resize', () => {
-    UserConfigs.window.gameWindowSize = GameWindow.getSize().toString()
-    if (!ManagerWindow.isDestroyed()) {
-      ManagerWindow.webContents.send(
-        'change-config-game-window-size',
-        UserConfigs.window.gameWindowSize
-      )
-    }
-  })
-
-  GameWindow.on('closed', () => {
-    // 关闭后台音频播放器
-    shutoffPlayer()
-    // 关闭本地镜像服务器
-    CloseServer()
-    // 依据用户设置显示被隐藏的管理器窗口
-    if (UserConfigs.window.isManagerHide) {
-      if (ManagerWindow) {
-        ManagerWindow.show()
-      }
-    }
-  })
-
-  initPlayer()
-  Menu.setApplicationMenu(getGameWindowMenu())
-
-  ipcMain.on('main-loader-ready', () => {
+  window.webContents.on('dom-ready', () => {
     // 加载本地服务器地址
     const http = UserConfigs.userData.useHttpServer
     const port = (UserConfigs.userData.useHttpServer
@@ -93,46 +128,63 @@ export function initGameWindow() {
     const url = `http${
       UserConfigs.userData.useHttpServer ? '' : 's'
     }://localhost:${port}/`
-    GameWindow.webContents.send('load-url', url, port, http)
+
+    window.webContents.send(
+      'load-url',
+      url,
+      port,
+      http,
+      id > 0 ? String(id) : undefined
+    )
   })
 
-  ipcMain.on(
-    'save-local-storage',
-    (event: Electron.Event, localStorage: string[][]) => {
-      UserConfigs.localStorage[
-        RemoteDomains[UserConfigs.userData.serverToPlay.toString()].name
-      ] = localStorage.filter(arr => arr[1] !== '' && arr[1] !== 'FKU!!!')
-      SaveConfigJson(UserConfigs)
-      dialog.showMessageBox(GameWindow, {
-        type: 'info',
-        title: i18n.text.main.programName(),
-        // TODO: i18n
-        message: '保存帐号信息成功!',
-        buttons: ['OK']
-      })
-    }
+  window.on('close', () => {
+    // TODO: 退出确认
+    GameWindows.destroyWindow(id)
+  })
+
+  // 监听到崩溃事件，输出 console
+  window.webContents.on('crashed', () =>
+    Logger.error(i18n.text.main.webContentsCrashed())
   )
 
-  GameWindow.once('ready-to-show', () => {
+  // 当且仅当只有一个游戏窗口时修改游戏窗口
+  // 监听尺寸更改事件，保存用户的窗口大小
+  if (GameWindows.size === 1) {
+    window.on('resize', () => {
+      UserConfigs.window.gameWindowSize = window.getSize().toString()
+      if (!ManagerWindow.isDestroyed()) {
+        ManagerWindow.webContents.send(
+          'change-config-game-window-size',
+          UserConfigs.window.gameWindowSize
+        )
+      }
+    })
+  }
+
+  Menu.setApplicationMenu(getGameWindowMenu(id))
+
+  window.once('ready-to-show', () => {
     // 设置页面缩放比例为 1 来防止缩放比例异常
     // 但这样会造成截图提示悬浮窗尺寸不合适
-    GameWindow.webContents.setZoomFactor(1)
-    GameWindow.show()
+    window.webContents.setZoomFactor(1)
+    window.show()
   })
 
   // 载入本地启动器
-  GameWindow.loadURL('file://' + path.join(__dirname, '../bin/main/index.html'))
+  window.loadURL('file://' + path.join(__dirname, '../bin/main/index.html'))
 
-  // Detect environment variable to open developer tools
   // 在 debug 启动环境下打开开发者工具
   if (process.env.NODE_ENV === 'development') {
-    GameWindow.webContents.openDevTools({
+    window.webContents.openDevTools({
       mode: 'detach'
     })
   }
+
+  return window
 }
 
-function getGameWindowMenu() {
+function getGameWindowMenu(id: number) {
   const template = [
     ...(process.platform === 'darwin'
       ? [
@@ -161,52 +213,58 @@ function getGameWindowMenu() {
             label: '截图',
             accelerator: acc,
             visible: index === 0,
-            click: () => {
-              takeScreenshot()
+            click: (item: MenuItem, window: BrowserWindow) => {
+              takeScreenshot(id)
             }
           }
         }),
         {
           label: '写入帐号信息',
           accelerator: 'CmdOrCtrl+Y',
-          click: () => {
-            GameWindow.webContents.send('get-local-storage')
+          click: (item: MenuItem, window: BrowserWindow) => {
+            window.webContents.send('get-local-storage')
           }
         },
-        ...(process.platform === 'darwin'
-          ? []
-          : [
-              {
-                label: '退出游戏',
-                accelerator: 'Alt+F4',
-                click: () => {
-                  GameWindow.close()
-                }
-              }
-            ])
+        {
+          label: GameWindows.size > 1 ? '关闭窗口' : '结束游戏',
+          accelerator: 'Alt+F4',
+          click: (item: MenuItem, window: BrowserWindow) => {
+            window.close()
+          }
+        }
       ]
     },
     {
       label: '窗口',
       role: 'window',
       submenu: [
+        {
+          label: '多开',
+          accelerator: 'CmdOrCtrl+Shift+N',
+          click: (item: MenuItem, window: BrowserWindow) => {
+            GameWindows.newWindow()
+          }
+        },
         {
           label: '置顶',
           accelerator: 'CmdOrCtrl+T',
-          click: () => {
-            GameWindow.setAlwaysOnTop(!GameWindow.isAlwaysOnTop())
+          type: 'checkbox' as 'checkbox',
+          click: (item: MenuItem, window: BrowserWindow) => {
+            window.setAlwaysOnTop(!window.isAlwaysOnTop())
           }
         },
         ...['F11', 'F5'].map((acc, index) => {
           return {
             label: '全屏',
             accelerator: acc,
+            type: 'checkbox' as 'checkbox',
+            enabled: GameWindows.size === 1,
             visible: index === 0,
-            click: () => {
+            click: (item: MenuItem, window: BrowserWindow) => {
               if (!UserConfigs.window.isKioskModeOn) {
-                GameWindow.setFullScreen(!GameWindow.isFullScreen())
+                window.setFullScreen(!window.isFullScreen())
               } else {
-                GameWindow.setKiosk(!GameWindow.isKiosk())
+                window.setKiosk(!window.isKiosk())
               }
             }
           }
@@ -223,7 +281,7 @@ function getGameWindowMenu() {
       submenu: Object.entries(ToolManager.getDetails()).map(([id, tool]) => {
         return {
           label: tool.metadata.name,
-          click: () => {
+          click: (item: MenuItem, window: BrowserWindow) => {
             ipcMain.emit('start-tool', {}, id)
           }
         }
@@ -233,25 +291,42 @@ function getGameWindowMenu() {
       label: '开发',
       submenu: [
         {
-          label: '重新载入',
-          accelerator: 'CmdOrCtrl+R',
-          click: () => {
+          label: '重载全部资源',
+          accelerator: 'Shift+Alt+R',
+          click: (item: MenuItem, window: BrowserWindow) => {
             CloseServer()
             ipcMain.emit('refresh-resourcepack', {})
             ipcMain.emit('refresh-extension', {})
             LoadServer()
             ListenServer(Global.ServerPort)
-            GameWindow.reload()
+            GameWindows.forEach(window => window.reload())
+          }
+        },
+        {
+          label: '重新载入本窗口',
+          accelerator: 'CmdOrCtrl+R',
+          click: (item: MenuItem, window: BrowserWindow) => {
+            window.reload()
+          }
+        },
+        {
+          label: '重新载入所有窗口',
+          accelerator: 'CmdOrCtrl+Shift+R',
+          click: (item: MenuItem, window: BrowserWindow) => {
+            // FIXME: 某些情况下会直接卡死
+            // 非常快速地创建新窗口可以稳定复现(一秒内5个左右)
+            // 原因未知 但用户应该不会用这么快手速多开(
+            GameWindows.forEach(window => window.reload())
           }
         },
         {
           label: '开发者工具',
-          accelerator: 'CmdOrCtrl+I',
-          click: () => {
+          accelerator: 'CmdOrCtrl+Shift+I',
+          click: (item: MenuItem, window: BrowserWindow) => {
             if (process.env.NODE_ENV === 'development') {
-              GameWindow.webContents.openDevTools({ mode: 'detach' })
+              window.webContents.openDevTools({ mode: 'detach' })
             }
-            GameWindow.webContents.send('open-devtools')
+            window.webContents.send('open-devtools')
           }
         }
       ]
@@ -262,7 +337,7 @@ function getGameWindowMenu() {
 }
 
 // 获取窗口标题，有 0.5% 概率显示为喵喵喵
-function getGameWindowTitle(): string {
+function getGameWindowTitle(id: number): string {
   // 彩蛋标题
   const titles = [
     {
@@ -290,22 +365,23 @@ function getGameWindowTitle(): string {
     return null
   }, null)
 
-  return titles[index].text
+  return titles[index].text + (id > 0 ? ` #${id}` : '')
 }
 
 // 截取屏幕画面
-function takeScreenshot() {
+function takeScreenshot(id: number) {
   AudioPlayer.webContents.send(
     'audio-play',
     path.join(__dirname, '../bin/audio/screenshot.mp3')
   )
 
-  const rect = GameWindow.getBounds()
+  const window = GameWindows.get(id)
+  const rect = window.getBounds()
   const display = screen.getDisplayMatching({
     x: Math.floor(rect.x),
     y: Math.floor(rect.y),
     width: Math.floor(rect.width),
     height: Math.floor(rect.height)
   })
-  GameWindow.webContents.send('take-screenshot', display.scaleFactor)
+  window.webContents.send('take-screenshot', id, display.scaleFactor)
 }