diff --git a/app/src/components/AuthForm.vue b/app/src/components/AuthForm.vue
index 7d05cb6..1f658af 100644
--- a/app/src/components/AuthForm.vue
+++ b/app/src/components/AuthForm.vue
@@ -83,6 +83,16 @@ const handleChange = () => {
     errorMessage.value = 'Something went wrong'
   }
 }
+
+const registerGuest = async () => {
+  try {
+    await api.post('/auth/register-guest')
+    router.push({ name: 'map' })
+  } catch (err) {
+    console.error(err)
+    toast.error('Something went wrong.')
+  }
+}
 </script>
 <template>
   <!-- login page -->
@@ -219,6 +229,13 @@ const handleChange = () => {
           </RouterLink></span
         >
       </p>
+      <button
+        id="register-guest"
+        class="rounded-lg py-2 mt-3 bg-bg-primary text-text-secondary w-full border-text-secondary border-2"
+        @click="registerGuest()"
+      >
+        以訪客身分繼續
+      </button>
     </form>
   </div>
 </template>
diff --git a/packages/models/src/user.ts b/packages/models/src/user.ts
index 8ac5bcd..5e4c63f 100644
--- a/packages/models/src/user.ts
+++ b/packages/models/src/user.ts
@@ -28,6 +28,7 @@ export interface IUser {
   socialLogins: Map<string, ISocialLogin>
   createdAt: Date
   updatedAt: Date
+  isGuest: boolean
 }
 
 export const User = model<IUser>(
@@ -51,6 +52,11 @@ export const User = model<IUser>(
         default: {},
         required: true,
       },
+      isGuest: {
+        type: Boolean,
+        default: false,
+        required: true,
+      },
     },
     {
       timestamps: true,
diff --git a/server/migrations/0001-add-isGuest.ts b/server/migrations/0001-add-isGuest.ts
new file mode 100644
index 0000000..20f2266
--- /dev/null
+++ b/server/migrations/0001-add-isGuest.ts
@@ -0,0 +1,23 @@
+import connectDB, { User } from '@linux-odyssey/models'
+
+async function migrate() {
+  await connectDB(
+    process.env.MONGO_URL || 'mongodb://localhost:27017/odyssey-test'
+  )
+  await User.updateMany(
+    {
+      isGuest: { $exists: false },
+    },
+    { $set: { isGuest: false } }
+  )
+}
+
+migrate()
+  .then(() => {
+    console.log('Migration completed')
+    process.exit(0)
+  })
+  .catch((err) => {
+    console.error(err)
+    process.exit(1)
+  })
diff --git a/server/package.json b/server/package.json
index 4b9b48a..44b869f 100644
--- a/server/package.json
+++ b/server/package.json
@@ -9,7 +9,8 @@
     "clean": "node dist/cli/clean.js",
     "build": "tsc -b",
     "dev": "nodemon",
-    "build:quests": "node dist/cli/build.js"
+    "build:quests": "node dist/cli/build.js",
+    "ts-node": "node --loader ts-node/esm"
   },
   "dependencies": {
     "@linux-odyssey/constants": "*",
@@ -20,6 +21,7 @@
     "commander": "^11.0.0",
     "connect-mongo": "^5.0.0",
     "cookie-parser": "^1.4.6",
+    "date-fns": "^3.6.0",
     "dockerode": "^3.3.5",
     "dotenv": "^16.4.1",
     "express": "^4.19.2",
diff --git a/server/src/api/controllers/authController.ts b/server/src/api/controllers/authController.ts
index 258ba4f..239a6ce 100644
--- a/server/src/api/controllers/authController.ts
+++ b/server/src/api/controllers/authController.ts
@@ -1,7 +1,7 @@
 import type { Request, Response, NextFunction, Express } from 'express'
 import { matchedData } from 'express-validator'
 import { genJWT } from '../../utils/auth.js'
-import { createUser } from '../../models/userManager.js'
+import { createUser, createGuestUser } from '../../models/userManager.js'
 import { asyncHandler } from '../../middleware/error.js'
 import logger from '../../utils/logger.js'
 
@@ -39,6 +39,30 @@ export const register = asyncHandler(
   }
 )
 
+export const registerGuest = asyncHandler(
+  async (req: Request, res: Response) => {
+    const user = await createGuestUser()
+    req.login(
+      {
+        id: user.id,
+        username: user.username,
+        email: user.email,
+      },
+      (err) => {
+        if (err) {
+          res.status(500).json({
+            message: 'error logging in',
+          })
+          return
+        }
+        res.status(201).json({
+          message: 'user created',
+        })
+      }
+    )
+  }
+)
+
 export function logout(req: Request, res: Response) {
   req.logout((err) => {
     if (err) {
diff --git a/server/src/api/routes/authRouter.ts b/server/src/api/routes/authRouter.ts
index 9fabc58..318af99 100644
--- a/server/src/api/routes/authRouter.ts
+++ b/server/src/api/routes/authRouter.ts
@@ -9,6 +9,7 @@ import {
   logout,
   registerFromSession,
   socialLoginHandler,
+  registerGuest,
 } from '../controllers/authController.js'
 import {
   checkUsernameValidators,
@@ -32,6 +33,8 @@ router.post(
 
 router.post('/register', authenticateRateLimit, registerValidators, register)
 
+router.post('/register-guest', authenticateRateLimit, registerGuest)
+
 router.post('/logout', logout)
 
 router.get(
diff --git a/server/src/models/userManager.ts b/server/src/models/userManager.ts
index 630ac76..06d2a52 100644
--- a/server/src/models/userManager.ts
+++ b/server/src/models/userManager.ts
@@ -1,4 +1,5 @@
 import { Express } from 'express'
+import { format } from 'date-fns'
 import { User, UserProfile } from '@linux-odyssey/models'
 import { hashPassword } from '../utils/auth.js'
 
@@ -31,6 +32,23 @@ export async function createUser(
   return user
 }
 
+export async function createGuestUser() {
+  const username = `guest_${format(new Date(), 'yyyyMMddHHmmss')}`
+  const user = new User({
+    username,
+    email: `${username}@example.com`,
+    isGuest: true,
+  })
+  await user.save()
+
+  const profile = new UserProfile({
+    user,
+  })
+  await profile.save()
+
+  return user
+}
+
 export function leaderboard() {
   return UserProfile.aggregate([
     {
diff --git a/server/swagger.yaml b/server/swagger.yaml
index dfadfc2..b2a0605 100644
--- a/server/swagger.yaml
+++ b/server/swagger.yaml
@@ -1,14 +1,14 @@
 openapi: 3.0.0
 servers:
   - url: /api/v1
-  - url: https://odyssey.wancat.cc/api/v1
+  - url: https://linuxodyssey.xyz/api/v1
   - url: http://localhost:3000/api/v1
 info:
   description: Linux Odyssey API
   version: '1.0.0'
   title: Session API
   contact:
-    email: wancat@wancat.cc
+    email: contact@linuxodyssey.xyz
   license:
     name: Apache 2.0
     url: 'http://www.apache.org/licenses/LICENSE-2.0.html'
@@ -233,6 +233,22 @@ paths:
                 type: string
                 example: connect.sid=s%3Aq1Z; Path=/; HttpOnly; SameSite=Strict; Secure
 
+  /auth/register-guest:
+    post:
+      summary: Register a new guest user
+      responses:
+        201:
+          description: User created
+          headers:
+            Set-Cookie:
+              schema:
+                type: string
+                example: connect.sid=s%3Aq1Z; Path=/; HttpOnly; SameSite=Strict; Secure
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/User'
+
   /auth/login:
     post:
       summary: Log in a user
diff --git a/yarn.lock b/yarn.lock
index a7887fb..a97122d 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -3594,6 +3594,11 @@ date-fns@^2.30.0:
   dependencies:
     "@babel/runtime" "^7.21.0"
 
+date-fns@^3.6.0:
+  version "3.6.0"
+  resolved "https://registry.yarnpkg.com/date-fns/-/date-fns-3.6.0.tgz#f20ca4fe94f8b754951b24240676e8618c0206bf"
+  integrity sha512-fRHTG8g/Gif+kSh50gaGEdToemgfj74aRX3swtiouboip5JDLAyDE9F11nHMIcvOaXeOC6D7SpNhi7uFyB7Uww==
+
 dayjs@^1.10.4:
   version "1.11.10"
   resolved "https://registry.yarnpkg.com/dayjs/-/dayjs-1.11.10.tgz#68acea85317a6e164457d6d6947564029a6a16a0"