diff --git a/i18n/en-US/manager.json b/i18n/en-US/manager.json
index 777bf30..39c73ed 100644
--- a/i18n/en-US/manager.json
+++ b/i18n/en-US/manager.json
@@ -21,6 +21,8 @@
   "useHttpServer": "User http server(avoid certificate error)",
   "serverToPlay": "Server to play (0 is China server, 1 is Japan server, 2 is America server)",
   "proxyUrl": "Proxy server address (leave it empty if you don't want to use it)",
+  "userAgent": "User-Agent",
+  "vanillaMode": "Vanilla mode (no extensions)",
   "userLibPath": "'User Library' Path",
   "localVersion": "Version",
   "isManagerHide": "Re-open the launcher when the game quit",
diff --git a/i18n/ja-JP/manager.json b/i18n/ja-JP/manager.json
index 5dd1336..f6a6543 100644
--- a/i18n/ja-JP/manager.json
+++ b/i18n/ja-JP/manager.json
@@ -17,6 +17,8 @@
   "useHttpServer": "http サービスを使用する（証明書エラーがない）",
   "serverToPlay": "ゲームサーバー（０は中国サーバー、１は日本サーバー、２は米国サーバー）",
   "proxyUrl": "プロキシサーバーアドレス（プロキシを使用しない場合は空白のままにします）",
+  "userAgent": "ユーザーエージェント",
+  "vanillaMode": "バニラモード（エクステンションなし）",
   "userLibPath": "ユーザライブラリディレクトリ",
   "localVersion": "バージョン",
   "isManagerHide": "ゲーム終了後、管理画面に戻る",
diff --git a/i18n/ko/manager.json b/i18n/ko/manager.json
index bcc54fa..7f3d6aa 100644
--- a/i18n/ko/manager.json
+++ b/i18n/ko/manager.json
@@ -21,6 +21,8 @@
   "useHttpServer": "\uc0ac\uc6a9\uc790 HTTP \uc11c\ubc84(\uc778\uc99d\uc11c \uc624\ub958 \ud68c\ud53c)",
   "serverToPlay": "\ud50c\ub808\uc774\ud560 \uc11c\ubc84 (0 : \uc911\uad6d \uc11c\ubc84, 1 : \uc77c\ubcf8 \uc11c\ubc84, 2 : \ubbf8\uad6d \uc11c\ubc84)",
   "proxyUrl": "\ud504\ub85d\uc2dc \uc11c\ubc84 \uc8fc\uc18c (\uc0ac\uc6a9\ud558\uc9c0 \uc54a\uc73c\ub824\uba74 \ube48\uce78\uc73c\ub85c \ub458 \uac83)",
+  "userAgent": "\uc0ac\uc6a9\uc790\u0020\uc5d0\uc774\uc804\ud2b8",
+  "vanillaMode": "Vanilla mode (no extensions)",
   "userLibPath": "'\uc0ac\uc6a9\uc790 \ub77c\uc774\ube0c\ub7ec\ub9ac' \uacbd\ub85c",
   "localVersion": "\ubc84\uc804",
   "isManagerHide": "\uac8c\uc784 \uc885\ub8cc \ud6c4 \ub7f0\ucc98 \uc7ac\uc2e4\ud589",
diff --git a/i18n/zh-CN/manager.json b/i18n/zh-CN/manager.json
index 112a0a1..c1f13ac 100644
--- a/i18n/zh-CN/manager.json
+++ b/i18n/zh-CN/manager.json
@@ -17,6 +17,8 @@
   "useHttpServer": "使用 http 服务器（不存在证书错误）",
   "serverToPlay": "游戏服务器（0为国服，1为日服，2为美服）",
   "proxyUrl": "代理服务器地址（留空为不使用代理）",
+  "userAgent": "User-Agent",
+  "vanillaMode": "纯净模式（停用所有扩展）",
   "userLibPath": "用户库目录",
   "localVersion": "版本",
   "isManagerHide": "退出游戏后回到管理器界面",
diff --git a/i18n/zh-TW/manager.json b/i18n/zh-TW/manager.json
index 3d85419..213a7f8 100644
--- a/i18n/zh-TW/manager.json
+++ b/i18n/zh-TW/manager.json
@@ -21,6 +21,8 @@
   "useHttpServer": "\u4f7f\u7528 http \u670d\u52d9\u5668\uff08\u4e0d\u5b58\u5728\u8b49\u66f8\u932f\u8aa4\uff09",
   "serverToPlay": "\u904a\u6232\u4f3a\u670d\u5668\uff080\u70ba\u570b\u4f3a\uff0c1\u70ba\u65e5\u4f3a\uff0c2\u70ba\u7f8e\u4f3a\uff09",
   "proxyUrl": "\u4ee3\u7406\u4f3a\u670d\u5668\u5730\u5740\uff08\u7559\u7a7a\u70ba\u4e0d\u4f7f\u7528\u4ee3\u7406\uff09",
+  "userAgent": "User-Agent",
+  "vanillaMode": "\u7d14\u6de8\u6a21\u5f0f\uff08\u505c\u7528\u6240\u6709\u64f4\u5c55\uff09",
   "userLibPath": "\u8cc7\u6599\u593e\u76ee\u9304",
   "localVersion": "\u7248\u672c",
   "isManagerHide": "\u9000\u51fa\u904a\u6232\u5f8c\uff0c\u8fd4\u56de\u6a94\u6848\u7e3d\u7ba1",
diff --git a/src/bin/main/mainLoader.ts b/src/bin/main/mainLoader.ts
index 2dae4d3..dff4aa3 100644
--- a/src/bin/main/mainLoader.ts
+++ b/src/bin/main/mainLoader.ts
@@ -105,6 +105,7 @@ function getLocalUrlWithParams(url: string) {
 function redirectGameWindow(url: string, gameWindow: Electron.WebviewTag) {
   const localUrl = getLocalUrlWithParams(url)
   console.log('[Majsoul Plus] Redirect Target:' + localUrl)
+
   gameWindow.loadURL(localUrl)
 }
 
@@ -139,8 +140,6 @@ mainWindow.addEventListener('dom-ready', () => {
   } else {
     scaleWindow(100)
   }
-
-  mainWindow.useragent = navigator.userAgent
 })
 
 ipcRenderer.on(
@@ -152,6 +151,8 @@ ipcRenderer.on(
     if (partition) {
       mainWindow.partition = partition
     }
+
+    mainWindow.useragent = navigator.userAgent
     mainWindow.src = url
     mainWindowBox.style.width = '100vw'
     mainWindowBox.style.height = '100vh'
diff --git a/src/config.ts b/src/config.ts
index a5da68d..11caf1f 100644
--- a/src/config.ts
+++ b/src/config.ts
@@ -13,7 +13,8 @@ const defaultWindowConfig: MajsoulPlus.UserWindowConfig = {
   renderingMultiple: 100,
   isKioskModeOn: false,
   isNoBorder: false,
-  isManagerHide: false
+  isManagerHide: false,
+  userAgent: Global.HttpGetUserAgent
 }
 
 const defaultUpdateConfig: MajsoulPlus.UserUpdateConfig = {
@@ -29,7 +30,8 @@ const defaultChromiumConfig: MajsoulPlus.UserChromiumConfig = {
 
 const defaultUserDataConfig: MajsoulPlus.UserDataConfig = {
   useHttpServer: false,
-  serverToPlay: 0
+  serverToPlay: 0,
+  vanillaMode: false
 }
 
 const defaultConfig: MajsoulPlus.UserConfig = {
diff --git a/src/extension/manager.ts b/src/extension/manager.ts
index e644d7d..8ea68f0 100644
--- a/src/extension/manager.ts
+++ b/src/extension/manager.ts
@@ -126,7 +126,26 @@ export default class MajsoulPlusExtensionManager extends BaseManager {
       }
     }
 
+    const processRegion = (data) => UserConfigs.userData.serverToPlay === 0
+      ? Buffer.from(
+          data
+            .toString('utf-8')
+            .replace(/\.\.\/region\/region\.txt/g, 'region.txt')
+        )
+      : data;
+
     router.get('/:version/code.js', async (ctx, next) => {
+      if (UserConfigs.userData.vanillaMode) {
+        const code = (
+          await getRemoteOrCachedFile(ctx.request.originalUrl, false, data =>
+            processRegion(data)
+          )
+        ).data.toString('utf-8')
+        ctx.res.setHeader('Content-Type', 'application/javascript')
+        ctx.body = code;
+        return;
+      }
+
       if (this.codejs !== '') {
         ctx.res.statusCode = 200
         ctx.body = this.codejs
@@ -265,13 +284,7 @@ function addScript(url) {
       const url = ctx.request.originalUrl.replace(/^\/majsoul_plus/, '')
       const code = (
         await getRemoteOrCachedFile(url, false, data =>
-          UserConfigs.userData.serverToPlay === 0
-            ? Buffer.from(
-                data
-                  .toString('utf-8')
-                  .replace(/\.\.\/region\/region\.txt/g, 'region.txt')
-              )
-            : data
+          processRegion(data)
         )
       ).data.toString('utf-8')
       ctx.res.setHeader('Content-Type', 'application/javascript')
diff --git a/src/index.ts b/src/index.ts
index 0e85b36..d5ea2e0 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -142,11 +142,13 @@ app.on('ready', () => {
 
   // 资源管理器通知启动游戏
   ipcMain.on('start-game', () => {
-    // 加载服务器路由规则
-    LoadServer()
+    if (!UserConfigs.userData.vanillaMode) {
+      // 加载服务器路由规则
+      LoadServer()
 
-    // 启动服务器
-    ListenServer(Global.ServerPort)
+      // 启动服务器
+      ListenServer(Global.ServerPort)
+    }
 
     if (!process.env.SERVER_ONLY) {
       GameWindows.newWindow()
diff --git a/src/majsoul_plus.d.ts b/src/majsoul_plus.d.ts
index d476741..9752d68 100644
--- a/src/majsoul_plus.d.ts
+++ b/src/majsoul_plus.d.ts
@@ -12,6 +12,7 @@ declare namespace MajsoulPlus {
     isKioskModeOn: boolean
     isNoBorder: boolean
     isManagerHide: boolean
+    userAgent: string
   }
 
   export interface UserUpdateConfig {
@@ -28,6 +29,7 @@ declare namespace MajsoulPlus {
   export interface UserDataConfig {
     useHttpServer: boolean
     serverToPlay: number
+    vanillaMode: boolean
   }
 
   export interface UserConfig {
diff --git a/src/manager/pages/Setting.ts b/src/manager/pages/Setting.ts
index e1882af..4064428 100644
--- a/src/manager/pages/Setting.ts
+++ b/src/manager/pages/Setting.ts
@@ -66,7 +66,7 @@ class Setting {
           index
         }),
       string: () => {
-        if (item === 'proxyUrl') {
+        if (item === 'proxyUrl' || item === 'userAgent') {
           this.renderTextSectionItem({
             settingInner,
             section,
diff --git a/src/utils.ts b/src/utils.ts
index 07b4612..2ca2917 100644
--- a/src/utils.ts
+++ b/src/utils.ts
@@ -118,7 +118,7 @@ export async function getRemoteSource(
   const remoteUrl = getRemoteUrl(url)
   const resp = await fetch(remoteUrl, {
     headers: {
-      'User-Agent': Global.HttpGetUserAgent
+      'User-Agent': UserConfigs.window.userAgent
     }
   })
 
@@ -261,7 +261,7 @@ export async function getRemoteOrCachedFile(
 export async function fetchAnySite(url: string, encoding: BufferEncoding = 'binary') {
   const resp = await fetch(url, {
     headers: {
-      'User-Agent': Global.HttpGetUserAgent
+      'User-Agent': UserConfigs.window.userAgent
     }
   })
   return (await resp.buffer()).toString(encoding)
diff --git a/src/windows/game.ts b/src/windows/game.ts
index d9d932b..434af5b 100644
--- a/src/windows/game.ts
+++ b/src/windows/game.ts
@@ -21,6 +21,7 @@ import {
   ListenServer,
   LoadServer
 } from '../server'
+import { getRemoteUrl } from '../utils';
 import { ToolManager } from '../tool/tool'
 import { AudioPlayer, initPlayer, shutoffPlayer } from './audioPlayer'
 import { ManagerWindow } from './manager'
@@ -103,15 +104,21 @@ export function newGameWindow(id: number) {
   window.setMenu(getGameWindowMenu(id))
 
   window.webContents.on('dom-ready', () => {
-    // 加载本地服务器地址
-    const http = UserConfigs.userData.useHttpServer
-    const port = (UserConfigs.userData.useHttpServer
-      ? (httpServer.address() as AddressInfo)
-      : (httpsServer.address() as AddressInfo)
-    ).port
-    const url = `http${
-      UserConfigs.userData.useHttpServer ? '' : 's'
-    }://localhost:${port}/`
+    let url, port, http
+
+    if (UserConfigs.userData.vanillaMode) {
+      url = getRemoteUrl('/')
+    } else {
+      // 加载本地服务器地址
+      http = UserConfigs.userData.useHttpServer
+      port = (UserConfigs.userData.useHttpServer
+        ? (httpServer.address() as AddressInfo)
+        : (httpsServer.address() as AddressInfo)
+      ).port
+      url = `http${
+        UserConfigs.userData.useHttpServer ? '' : 's'
+      }://localhost:${port}/`
+    }
 
     window.webContents.send(
       'load-url',
@@ -160,8 +167,9 @@ export function newGameWindow(id: number) {
     window.show()
   })
 
+
   // 设置 GameWindow 的 userAgent
-  window.webContents.userAgent = Global.HttpGetUserAgent
+  window.webContents.userAgent = UserConfigs.window.userAgent
 
   // 载入本地启动器
   window.loadURL('file://' + path.join(__dirname, '../bin/main/index.html'))