diff --git a/app/src/components/CompleteModal.vue b/app/src/components/CompleteModal.vue
new file mode 100644
index 0000000..77998a0
--- /dev/null
+++ b/app/src/components/CompleteModal.vue
@@ -0,0 +1,65 @@
+<script setup>
+import { ref } from 'vue'
+
+const SURVEY_URL = 'https://www.surveycake.com/s/z67xG'
+
+const showModal = ref(true) // Controls whether the modal is visible or not
+
+const closeModal = () => {
+  showModal.value = false
+}
+
+// Simulate completing a quest to show the modal
+setTimeout(() => {
+  showModal.value = true
+}, 5000) // Show modal after 5 seconds
+</script>
+
+<template>
+  <div v-if="showModal" class="modal">
+    <div class="modal-content bg-background-secondary rounded-lg">
+      <span class="close text-text" @click="closeModal">&times;</span>
+      <h2 class="text-2xl text-text mb-5 w-full inline-flex justify-center">
+        Congradulation!
+      </h2>
+      <p class="text-base text-text">
+        您已成功完成挑戰，真的非常感謝您的參與！<br />
+        如果您能撥冗填寫這份問卷，我們將不勝感激，這對我們非常重要！
+      </p>
+      <a
+        :href="SURVEY_URL"
+        target="_blank"
+        class="inline-flex justify-center rounded-lg text-base font-black py-2 mt-3 bg-text-primary w-full"
+        >填寫問卷</a
+      >
+    </div>
+  </div>
+</template>
+
+<style>
+.modal {
+  display: block;
+  position: fixed;
+  top: 0;
+  left: 0;
+  width: 100%;
+  height: 100%;
+  background-color: rgba(0, 0, 0, 0.7);
+  z-index: 1;
+}
+
+.modal-content {
+  position: relative;
+  margin: 15% auto;
+  padding: 20px;
+  width: 30%;
+}
+
+.close {
+  position: absolute;
+  top: 0;
+  right: 10px;
+  font-size: 30px;
+  cursor: pointer;
+}
+</style>
diff --git a/app/src/views/GamePage.vue b/app/src/views/GamePage.vue
index 207ced4..fdd4c3b 100644
--- a/app/src/views/GamePage.vue
+++ b/app/src/views/GamePage.vue
@@ -8,6 +8,7 @@ import QuestPart from '../components/QuestPart.vue'
 import TerminalPart from '../components/TerminalPart.vue'
 import VisualizationPart from '../components/VisualizationPart.vue'
 import ControlPalette from '../components/ControlPalette.vue'
+import CompleteModal from '../components/CompleteModal.vue'
 
 onMounted(async () => {
   await sessionManager.lastOrCreate()
@@ -64,6 +65,7 @@ onMounted(async () => {
       </div>
       <ControlPalette />
     </div>
+    <CompleteModal />
   </div>
 </template>
 <script></script>