diff --git a/Assets/PerfectWorld/Scripts/UI/Login/CreateCharacterScreen.cs b/Assets/PerfectWorld/Scripts/UI/Login/CreateCharacterScreen.cs
index 47b5ad4bf7..de7f993a0e 100644
--- a/Assets/PerfectWorld/Scripts/UI/Login/CreateCharacterScreen.cs
+++ b/Assets/PerfectWorld/Scripts/UI/Login/CreateCharacterScreen.cs
@@ -9,6 +9,7 @@ using TMPro;
 using UnityEngine;
 using UnityEngine.UI;
 using BrewMonster.Scripts;
+using BrewMonster.PerfectWorld.Scripts.Utility.ChatFilter;
 
 namespace BrewMonster.UI
 {
@@ -23,9 +24,12 @@ namespace BrewMonster.UI
         [SerializeField] private Button maleGenderButton;
         [SerializeField] private Button femaleGenderButton;
         [SerializeField] private TMP_InputField nameInputField;
+        [SerializeField] private TMP_Text validationMessageText;
         [SerializeField] private Button confirmButton;
         [SerializeField] private Button cancelButton;
         [SerializeField] private Button backButton;
+        [SerializeField] private CDlgMessageBox messageBoxPrefab;
+        private CDlgMessageBox _messageBoxInstance;
 
         private int _currentProfession = -1;
         private int _currentGender = -1;
@@ -79,6 +83,7 @@ namespace BrewMonster.UI
             if (nameInputField != null)
             {
                 nameInputField.onSubmit.AddListener((text) => { if (CanConfirm()) OnConfirmClicked(); });
+                nameInputField.onValueChanged.AddListener((text) => ClearValidationError());
             }
         }
 
@@ -97,6 +102,8 @@ namespace BrewMonster.UI
                 nameInputField.Select();
             }
 
+            ClearValidationError();
+
             UpdateConfirmButtonState();
         }
 
@@ -180,10 +187,8 @@ namespace BrewMonster.UI
             if (!CanConfirm())
                 return;
 
-            string characterName = nameInputField != null ? nameInputField.text : "";
-            if (string.IsNullOrWhiteSpace(characterName))
+            if (!TryGetValidatedCharacterName(out string characterName))
             {
-                Debug.LogWarning("Character name cannot be empty");
                 return;
             }
 
@@ -214,6 +219,77 @@ namespace BrewMonster.UI
             _onCancel?.Invoke();
         }
 
+        private bool TryGetValidatedCharacterName(out string characterName)
+        {
+            characterName = nameInputField != null ? nameInputField.text.Trim() : string.Empty;
+            if (string.IsNullOrWhiteSpace(characterName))
+            {
+                ShowValidationError("Character name cannot be empty.");
+                return false;
+            }
+
+            if (ChatFilterService.ContainsBadWord(characterName))
+            {
+                ShowValidationError("Character name contains inappropriate words.");
+                return false;
+            }
+
+            ClearValidationError();
+            return true;
+        }
+
+        private void ShowValidationError(string message)
+        {
+            if (validationMessageText != null)
+            {
+                validationMessageText.text = message;
+                validationMessageText.gameObject.SetActive(true);
+            }
+
+            var dialog = GetOrCreateMessageBoxInstance();
+            if (dialog != null)
+            {
+                dialog.ShowMessageBoxYes("Invalid Character Name", message, null, null);
+            }
+            else
+            {
+                CECUIManager.Instance?.ShowMessageBoxYes("Invalid Character Name", message, null, null);
+            }
+            Debug.LogWarning(message);
+        }
+
+        private CDlgMessageBox GetOrCreateMessageBoxInstance()
+        {
+            if (_messageBoxInstance != null)
+            {
+                return _messageBoxInstance;
+            }
+
+            if (messageBoxPrefab == null)
+            {
+                return null;
+            }
+
+            var canvas = GetComponentInParent<Canvas>();
+            if (canvas == null)
+            {
+                return null;
+            }
+
+            _messageBoxInstance = Instantiate(messageBoxPrefab, canvas.transform);
+            _messageBoxInstance.gameObject.SetActive(false);
+            return _messageBoxInstance;
+        }
+
+        private void ClearValidationError()
+        {
+            if (validationMessageText != null)
+            {
+                validationMessageText.text = string.Empty;
+                validationMessageText.gameObject.SetActive(false);
+            }
+        }
+
         private bool CanConfirm()
         {
             if (_currentProfession < 0 || _currentProfession >= (int)Profession.NUM_PROFESSION)
diff --git a/Assets/Prefabs/UI/CreateCharacterUI.prefab b/Assets/Prefabs/UI/CreateCharacterUI.prefab
index f35677284c..861d0ec8f3 100644
--- a/Assets/Prefabs/UI/CreateCharacterUI.prefab
+++ b/Assets/Prefabs/UI/CreateCharacterUI.prefab
@@ -912,9 +912,11 @@ MonoBehaviour:
   maleGenderButton: {fileID: 4799972544958627575}
   femaleGenderButton: {fileID: 975101812964933518}
   nameInputField: {fileID: 5515740729786715052}
+  validationMessageText: {fileID: 0}
   confirmButton: {fileID: 2058345032894912639}
   cancelButton: {fileID: 3605310658127377634}
   backButton: {fileID: 3605310658127377634}
+  messageBoxPrefab: {fileID: 1069295583529170983, guid: 54cccb2c6a758a24183474cd385ccb2c, type: 3}
 --- !u!1 &2083311518824170680
 GameObject:
   m_ObjectHideFlags: 0