diff --git a/app/src/components/game/ControlPalette.vue b/app/src/components/game/ControlPalette.vue
index bd2bbf7..b423112 100644
--- a/app/src/components/game/ControlPalette.vue
+++ b/app/src/components/game/ControlPalette.vue
@@ -1,13 +1,14 @@
 <script setup lang="ts">
 import { useRouter } from 'vue-router'
 import { useToast } from 'vue-toastification'
-import { createSession } from '../../store/session'
+import useSession from '../../store/session'
 import { surveyUrl } from '../../config'
 
 const router = useRouter()
+const sessionStore = useSession()
 const reset = async () => {
   console.log('resetting...')
-  await createSession()
+  await sessionStore.createSession()
 }
 const continuePlay = async () => {
   try {
@@ -29,7 +30,7 @@ const continuePlay = async () => {
           :icon="['fas', 'file-invoice']"
           class="text-text-primary px-1"
         />
-        <p class="text-text-primary inline ml-1 hidden md:flex">問卷</p>
+        <p class="text-text-primary inline ml-1 md:flex">問卷</p>
       </a>
     </button>
     <button disabled id="solution" class="bg-bg-disabled rounded-lg p-2">
@@ -37,7 +38,7 @@ const continuePlay = async () => {
         :icon="['far', 'circle-question']"
         class="text-text-disabled px-1"
       />
-      <p class="text-text-disabled inline ml-1 hidden md:flex">解答</p>
+      <p class="text-text-disabled inline ml-1 md:flex">解答</p>
     </button>
     <button id="reset" class="bg-bg-secondary rounded-lg p-2" @click="reset">
       <font-awesome-icon
diff --git a/app/src/components/game/HintPart.vue b/app/src/components/game/HintPart.vue
index 864ac7f..8accec6 100644
--- a/app/src/components/game/HintPart.vue
+++ b/app/src/components/game/HintPart.vue
@@ -1,8 +1,9 @@
 <script setup lang="ts">
 import { ref, watch } from 'vue'
-import sessionStore from '../../store/session'
+import useSession from '../../store/session'
 import MarkdownText from '../MarkdownText.vue'
 
+const sessionStore = useSession()
 const current = ref(-1)
 watch(
   () => sessionStore.session.hints,
diff --git a/app/src/components/game/QuestPart.vue b/app/src/components/game/QuestPart.vue
index b199f9d..f65e647 100644
--- a/app/src/components/game/QuestPart.vue
+++ b/app/src/components/game/QuestPart.vue
@@ -1,9 +1,10 @@
 <script setup lang="ts">
 import { computed } from 'vue'
 import MarkdownText from '../MarkdownText.vue'
-import sessionStore from '../../store/session'
+import useSession from '../../store/session'
 import { Task } from '../../types'
 
+const sessionStore = useSession()
 const tasks = computed(() => {
   return sessionStore.session.tasks.map((task: Task) => {
     const prefix = task.completed ? '✓' : '➤'
diff --git a/app/src/components/game/StartButton.vue b/app/src/components/game/StartButton.vue
index 998fa26..073c8e3 100644
--- a/app/src/components/game/StartButton.vue
+++ b/app/src/components/game/StartButton.vue
@@ -1,8 +1,7 @@
 <script setup lang="ts">
 import { useToast } from 'vue-toastification'
-import { ref } from 'vue'
-import { getActiveSession, setQuest, createSession } from '../../store/session'
-import { LoadQuestError, LoadSessionError } from '../../utils/errors'
+import { onMounted, ref } from 'vue'
+import useSession from '../../store/session'
 
 const props = defineProps({
   questId: {
@@ -12,34 +11,21 @@ const props = defineProps({
 })
 
 const toast = useToast()
-const showCover = ref(false)
+const showCover = ref(true)
+const sessionStore = useSession()
 
-function init(questId: string) {
-  if (!questId) throw new Error('No quest ID provided')
-  try {
-    getActiveSession(props.questId)
-  } catch (err: any) {
-    if (err instanceof LoadQuestError) {
-      toast.error(`無法讀取關卡: ${err.questId}，請確認網頁連結。`)
-      return
-    }
-    if (err instanceof LoadSessionError) {
-      toast.error(`無法建立工作階段: ${err.questId}，請重新登入再試一次。`)
-      return
-    }
-    console.error(err)
-    toast.warning('Failed to connect previous session. Creating a new one...')
-    showCover.value = true
+onMounted(async () => {
+  sessionStore.setQuest(props.questId)
+  if (await sessionStore.getActiveSession()) {
+    showCover.value = false
   }
-}
-
-init(props.questId)
-setQuest(props.questId)
+  sessionStore.setup()
+})
 
 const startSession = async () => {
-  showCover.value = false
   try {
-    createSession()
+    await sessionStore.createSession()
+    showCover.value = false
   } catch (err: any) {
     console.error(err)
     toast.error(err.message)
diff --git a/app/src/components/game/TreeChart.vue b/app/src/components/game/TreeChart.vue
index 0c85c6d..a1f212e 100644
--- a/app/src/components/game/TreeChart.vue
+++ b/app/src/components/game/TreeChart.vue
@@ -1,6 +1,8 @@
 <script setup lang="ts">
 import FileNode from '../FileNode.vue'
-import sessionStore from '../../store/session'
+import useSession from '../../store/session'
+
+const sessionStore = useSession()
 </script>
 
 <template>
diff --git a/app/src/components/header/GameHeaderComponents.vue b/app/src/components/header/GameHeaderComponents.vue
index c497807..ef9a685 100644
--- a/app/src/components/header/GameHeaderComponents.vue
+++ b/app/src/components/header/GameHeaderComponents.vue
@@ -4,10 +4,11 @@ import { useRouter } from 'vue-router'
 import { useToast } from 'vue-toastification'
 import { logout } from '../../utils/auth'
 import { bugReportUrl, surveyUrl } from '../../config'
-import { reset } from '../../store/session'
+import useSession from '../../store/session'
 import useUserProfile from '../../store/userProfile'
 
-const store = useUserProfile()
+const userStore = useUserProfile()
+const sessionStore = useSession()
 const router = useRouter()
 
 const toast = useToast()
@@ -15,8 +16,8 @@ const toast = useToast()
 const handleLogout = async () => {
   try {
     await logout()
-    store.resetUserProfile()
-    reset()
+    userStore.resetUserProfile()
+    sessionStore.reset()
     router.push({ name: 'login' })
   } catch (err) {
     toast.error('登出失敗')
@@ -26,7 +27,7 @@ const handleLogout = async () => {
 
 onMounted(async () => {
   try {
-    await store.loadUserProfile()
+    await userStore.loadUserProfile()
   } catch (err) {
     toast.error('無法讀取使用者資料')
     console.error(err)
@@ -57,7 +58,7 @@ onMounted(async () => {
     class="text-text inline-block whitespace-nowrap px-1.5"
     style="font-size: 2vh"
   >
-    {{ store.username }}
+    {{ userStore.username }}
   </p>
   <a
     title="Survey"
diff --git a/app/src/store/session.ts b/app/src/store/session.ts
index 8bee28d..61ec6ea 100644
--- a/app/src/store/session.ts
+++ b/app/src/store/session.ts
@@ -1,31 +1,13 @@
-import { reactive } from 'vue'
-import { useToast } from 'vue-toastification'
+import { defineStore } from 'pinia'
 import { FileGraph, FileObject } from '@linux-odyssey/file-graph'
 import { IQuest } from '@linux-odyssey/models'
-import api from '../utils/api'
+import { createSession, getQuest, getSessions } from '../utils/api'
 import Socket from '../utils/socket'
 import SocketTerminal from '../utils/terminal'
-import { LoadQuestError, LoadSessionError } from '../utils/errors'
 import { Session, StageResponse } from '../types'
 
-const toast = useToast()
-
-function newSession() {
-  const graph = new FileGraph({
-    path: '/',
-    type: 'folder',
-    discovered: false,
-  })
-  return {
-    _id: '',
-    status: 'inactive',
-    graph,
-    pwd: '',
-    hints: [],
-    tasks: [],
-    responses: [],
-  }
-}
+const socket = new Socket()
+const term = new SocketTerminal(40, 80)
 
 interface Store {
   session: Session
@@ -33,97 +15,93 @@ interface Store {
   quest: IQuest | null
 }
 
-const store = reactive<Store>({
-  session: newSession(),
-  questId: '',
-  quest: null,
+const useSession = defineStore('session', {
+  state: (): Store => ({
+    session: {
+      _id: '',
+      status: 'inactive',
+      graph: new FileGraph({
+        path: '/',
+        type: 'folder',
+        discovered: false,
+      }),
+      pwd: '',
+      hints: [],
+      tasks: [],
+      responses: [],
+    },
+    questId: '',
+    quest: null,
+  }),
+  actions: {
+    async setQuest(questId: string) {
+      this.quest = await getQuest(questId)
+      this.questId = questId
+    },
+    async setSession(session: Session) {
+      this.session = session
+      this.session.graph = new FileGraph(session.graph)
+      term.reset()
+      await socket.connect(session)
+      term.focus()
+    },
+    async createSession() {
+      const session = await createSession(this.questId)
+      this.setSession(session)
+    },
+    async getActiveSession() {
+      const sessions = await getSessions({
+        questId: this.questId,
+        limit: 1,
+        order: 'desc',
+        status: 'active',
+      })
+      if (sessions.length > 0) {
+        this.setSession(sessions[0])
+        return true
+      }
+      return false
+    },
+    updateGraph(event: { discover?: FileObject[]; pwd?: string }) {
+      if (event.discover) {
+        this.session.graph.discover(event.discover)
+      }
+      if (event.pwd) {
+        this.session.pwd = event.pwd
+      }
+    },
+    newResponse(response: StageResponse) {
+      this.session.responses.push(response.responses)
+      this.session.hints.push(response.hints)
+      this.session.tasks = response.tasks
+      this.session.status = response.status
+    },
+    reset() {
+      socket.reset()
+      term.reset()
+      this.$reset()
+    },
+    setup() {
+      socket.on('terminal', (data: string) => {
+        term.write(data)
+      })
+      term.onData((data: string) => {
+        socket.emit('terminal', data)
+      })
+      socket.on('graph', (event: { discover: FileObject[]; pwd: string }) => {
+        this.updateGraph(event)
+      })
+      socket.on('response', (response: StageResponse) => {
+        this.newResponse(response)
+      })
+    },
+  },
 })
 
-const socket = new Socket()
-const term = new SocketTerminal(40, 80)
-
-export function setQuest(questId: string) {
-  return api.get(`/quests/${questId}`).then((res) => {
-    store.questId = res.data._id
-    store.quest = res.data
-  })
-}
-
-async function setSession(session: Session) {
-  try {
-    console.log('Setting session...', session)
-    store.session = session
-    store.session.graph = new FileGraph(session.graph)
-    term.reset()
-    await socket.connect(session)
-    term.focus()
-  } catch (err: any) {
-    console.error(err)
-    if (err instanceof Error) {
-      toast.error(err.message)
-    } else {
-      toast.error('Failed to connect to the session. Please try again later.')
-    }
-    throw err
-  }
-}
-
-export async function createSession() {
-  try {
-    console.log('Creating a new session...')
-    const res = await api.post('/sessions', { questId: store.questId })
-    const { data } = res
-    await setSession(data)
-    socket.emit('terminal', 'echo start')
-  } catch (err) {
-    console.error(err)
-    toast.error('Failed to create a new session. Please try again later.')
-  }
-}
-
-export async function getActiveSession(questId: string) {
-  try {
-    // const res = await api.post('/sessions/active', { questId })
-    const res = await api.get(`/sessions/${questId}`, {
-      params: { status: 'active' },
-    })
-    await setSession(res.data)
-  } catch (err) {
-    console.error(err)
-    throw new LoadSessionError('Failed to load session', questId)
-    // toast.warning('Failed to connect previous session. Creating a new one...')
-    // await createSession()
-  }
-}
-
-function updateGraph(event: { discover: FileObject[]; pwd: string }) {
-  if (event.discover) {
-    store.session.graph.discover(event.discover)
-  }
-  if (event.pwd) {
-    store.session.pwd = event.pwd
-  }
-}
-
-function newResponse(response: StageResponse) {
-  console.log('newResponse', response, 'session', store.session)
-  store.session.responses.push(response.responses)
-  store.session.hints.push(response.hints)
-  store.session.tasks = response.tasks
-  store.session.status = response.status
-}
-
 export function useTerminal() {
   return term
 }
 
-export function reset() {
-  socket.reset()
-  term.reset()
-  store.session = newSession()
-  store.quest = null
-}
-
 // export async function init(questId: string) {
 //   if (!questId) throw new Error('No quest ID provided')
 // reset()
@@ -141,21 +119,4 @@ export function reset() {
 //   }
 // }
 
-function setup() {
-  socket.on('terminal', (data: string) => {
-    term.write(data)
-  })
-  term.onData((data: string) => {
-    socket.emit('terminal', data)
-  })
-  socket.on('graph', (event: { discover: FileObject[]; pwd: string }) => {
-    updateGraph(event)
-  })
-  socket.on('response', (response: StageResponse) => {
-    newResponse(response)
-  })
-}
-
-setup()
-
-export default store
+export default useSession
diff --git a/app/src/utils/api.ts b/app/src/utils/api.ts
index f298863..a5808ac 100644
--- a/app/src/utils/api.ts
+++ b/app/src/utils/api.ts
@@ -1,4 +1,7 @@
 import axios from 'axios'
+import { IQuest } from '@linux-odyssey/models'
+import { GetSessionsRequest } from '@linux-odyssey/constants'
+import { Session } from '../types'
 import { UserProfile } from '../store/userProfile'
 
 const api = axios.create({
@@ -14,3 +17,20 @@ export async function getUserProfile(): Promise<UserProfile> {
   const res = await api.get<UserProfile>('/users/me')
   return res.data
 }
+
+export async function getQuest(id: string): Promise<IQuest> {
+  const res = await api.get<IQuest>(`/quests/${id}`)
+  return res.data
+}
+
+export async function createSession(questId: string): Promise<Session> {
+  const res = await api.post<Session>('/sessions', { questId })
+  return res.data
+}
+
+export async function getSessions(
+  request: GetSessionsRequest
+): Promise<Session[]> {
+  const res = await api.get<Session[]>('/sessions', { params: request })
+  return res.data
+}
diff --git a/app/src/views/GamePage.vue b/app/src/views/GamePage.vue
index fcea8e4..c18eee0 100644
--- a/app/src/views/GamePage.vue
+++ b/app/src/views/GamePage.vue
@@ -2,7 +2,7 @@
 import { computed } from 'vue'
 // import { onMounted } from 'vue'
 // import { useToast } from 'vue-toastification'
-import sessionStore from '../store/session'
+import useSession from '../store/session'
 // import { init } from '../store/session'
 import HeaderPart from '../components/header/HeaderPart.vue'
 import GameHeaderComponents from '../components/header/GameHeaderComponents.vue'
@@ -13,19 +13,14 @@ import TerminalPart from '../components/game/TerminalPart.vue'
 import VisualizationPart from '../components/game/VisualizationPart.vue'
 import ControlPalette from '../components/game/ControlPalette.vue'
 import CompleteModal from '../components/game/CompleteModal.vue'
-// import { LoadQuestError, LoadSessionError } from '../utils/errors'
 import StartButton from '../components/game/StartButton.vue'
 
+const sessionStore = useSession()
+
 const completed = computed(() => {
   return sessionStore.session.status === 'finished'
 })
 
-// const props = defineProps({
-//   questId: {
-//     type: String,
-//     required: true,
-//   },
-// })
 defineProps({
   questId: {
     type: String,
@@ -33,23 +28,6 @@ defineProps({
   },
 })
 // const toast = useToast()
-
-// onMounted(async () => {
-//   try {
-//     await init(props.questId)
-//   } catch (err: any) {
-//     if (err instanceof LoadQuestError) {
-//       toast.error(`無法讀取關卡: ${err.questId}，請確認網頁連結。`)
-//       return
-//     }
-//     if (err instanceof LoadSessionError) {
-//       toast.error(`無法建立工作階段: ${err.questId}，請重新登入再試一次。`)
-//       return
-//     }
-//     console.error(err)
-//     toast.error(err.message)
-//   }
-// })
 </script>
 
 <template>
diff --git a/packages/constants/index.ts b/packages/constants/index.ts
index 0ff060b..c555e8e 100644
--- a/packages/constants/index.ts
+++ b/packages/constants/index.ts
@@ -1,3 +1,5 @@
+import { z } from 'zod'
+
 export const passwordPolicy = {
   minLength: 8,
   minNumbers: 1,
@@ -6,6 +8,11 @@ export const passwordPolicy = {
   minSymbols: 0,
 }
 
-export default {
-  passwordPolicy,
-}
+export const getSessionsRequestSchema = z.object({
+  questId: z.string().optional(),
+  status: z.enum(['active', 'inactive', 'finished']).optional(),
+  limit: z.coerce.number().optional(),
+  order: z.enum(['asc', 'desc']).optional(),
+})
+
+export type GetSessionsRequest = z.infer<typeof getSessionsRequestSchema>
diff --git a/packages/constants/package.json b/packages/constants/package.json
index 39f0201..ec494fd 100644
--- a/packages/constants/package.json
+++ b/packages/constants/package.json
@@ -10,5 +10,8 @@
   "scripts": {
     "build": "tsc",
     "dev": "tsc -w"
+  },
+  "dependencies": {
+    "zod": "^3.23.8"
   }
 }
diff --git a/server/swagger.yaml b/server/swagger.yaml
index b2a0605..c5e854b 100644
--- a/server/swagger.yaml
+++ b/server/swagger.yaml
@@ -37,6 +37,19 @@ paths:
           schema:
             type: string
             enum: [active, finished, inactive]
+        - in: query
+          name: limit
+          description: limit the number of sessions to return
+          schema:
+            type: number
+            example: 10
+        - in: query
+          name: order
+          description: order the sessions by createdAt
+          schema:
+            type: string
+            enum: [asc, desc]
+            example: desc
       responses:
         '200':
           description: list of existing session
diff --git a/yarn.lock b/yarn.lock
index ab01e36..643f242 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -8475,6 +8475,11 @@ yocto-queue@^0.1.0:
   resolved "https://registry.yarnpkg.com/yocto-queue/-/yocto-queue-0.1.0.tgz#0294eb3dee05028d31ee1a5fa2c556a6aaf10a1b"
   integrity sha512-rVksvsnNCdJ/ohGc6xgPwyN8eheCxsiLM8mxuE/t/mOVqJewPuO1miLpTHQiRgTKCLexL4MeAFVagts7HmNZ2Q==
 
+zod@^3.23.8:
+  version "3.23.8"
+  resolved "https://registry.yarnpkg.com/zod/-/zod-3.23.8.tgz#e37b957b5d52079769fb8097099b592f0ef4067d"
+  integrity sha512-XBx9AXhXktjUqnepgTiE5flcKIYWi/rme0Eaj+5Y0lftuGBq+jyRu/md4WnuxqgP1ubdpNCsYEYPxrzVHD8d6g==
+
 zrender@5.5.0:
   version "5.5.0"
   resolved "https://registry.yarnpkg.com/zrender/-/zrender-5.5.0.tgz#54d0d6c4eda81a96d9f60a9cd74dc48ea026bc1e"