diff --git a/project/SPT.Launcher.Base/Helpers/LocalizationProvider.cs b/project/SPT.Launcher.Base/Helpers/LocalizationProvider.cs
index dfcd9db..411ed46 100644
--- a/project/SPT.Launcher.Base/Helpers/LocalizationProvider.cs
+++ b/project/SPT.Launcher.Base/Helpers/LocalizationProvider.cs
@@ -192,6 +192,7 @@ namespace SPT.Launcher.Helpers
             englishLocale.open_link = "Open Link";
             englishLocale.dev_mode = "Developer Mode";
             englishLocale.failed_to_save_settings = "Failed to save settings";
+            englishLocale.register_failed_name_limit = "name cannot exceed 15 characters";
             #endregion
 
             Directory.CreateDirectory(LocalizationProvider.DefaultLocaleFolderPath);
@@ -228,6 +229,24 @@ namespace SPT.Launcher.Helpers
 
         #region All Properties
         
+        #region register_failed_name_limit
+
+        private string _register_failed_name_limit;
+
+        public string register_failed_name_limit
+        {
+            get => _register_failed_name_limit;
+            set
+            {
+                if (_register_failed_name_limit != value)
+                {
+                    _register_failed_name_limit = value;
+                    RaisePropertyChanged(nameof(register_failed_name_limit));
+                }
+            }
+        }
+        #endregion
+        
         #region failed_to_save_settings
 
         private string _failed_to_save_settings;
diff --git a/project/SPT.Launcher/SPT_Data/Launcher/Locales/Chinese (Simplified).json b/project/SPT.Launcher/SPT_Data/Launcher/Locales/Chinese (Simplified).json
index 5994d1b..745fe4f 100644
--- a/project/SPT.Launcher/SPT_Data/Launcher/Locales/Chinese (Simplified).json	
+++ b/project/SPT.Launcher/SPT_Data/Launcher/Locales/Chinese (Simplified).json	
@@ -95,5 +95,6 @@
   "open_link_question_format_1": "Are you sure you want to open the following link: \n{0}",
   "open_link": "Open Link",
   "dev_mode": "Developer Mode",
-  "failed_to_save_settings": "Failed to save settings"
+  "failed_to_save_settings": "Failed to save settings",
+  "register_failed_name_limit": "name cannot exceed 15 characters"
 }
diff --git a/project/SPT.Launcher/SPT_Data/Launcher/Locales/Chinese (Traditional).json b/project/SPT.Launcher/SPT_Data/Launcher/Locales/Chinese (Traditional).json
index d94169b..3a65e09 100644
--- a/project/SPT.Launcher/SPT_Data/Launcher/Locales/Chinese (Traditional).json	
+++ b/project/SPT.Launcher/SPT_Data/Launcher/Locales/Chinese (Traditional).json	
@@ -95,5 +95,6 @@
   "open_link_question_format_1": "Are you sure you want to open the following link: \n{0}",
   "open_link": "Open Link",
   "dev_mode": "Developer Mode",
-  "failed_to_save_settings": "Failed to save settings"
+  "failed_to_save_settings": "Failed to save settings",
+  "register_failed_name_limit": "name cannot exceed 15 characters"
 }
\ No newline at end of file
diff --git a/project/SPT.Launcher/SPT_Data/Launcher/Locales/English.json b/project/SPT.Launcher/SPT_Data/Launcher/Locales/English.json
index cac4382..7d5ea4e 100644
--- a/project/SPT.Launcher/SPT_Data/Launcher/Locales/English.json
+++ b/project/SPT.Launcher/SPT_Data/Launcher/Locales/English.json
@@ -96,5 +96,6 @@
   "open_link": "Open Link",
   "dev_mode": "Developer Mode",
   "failed_to_save_settings": "Failed to save settings",
-  "core_dll_file_version_mismatch": "Your BepinEx/plugins/spt/spt-core.dll file version doesn't match what was expected and is unable to start. Try reinstalling SPT"
+  "core_dll_file_version_mismatch": "Your BepinEx/plugins/spt/spt-core.dll file version doesn't match what was expected and is unable to start. Try reinstalling SPT",
+  "register_failed_name_limit": "name cannot exceed 15 characters"
 }
\ No newline at end of file
diff --git a/project/SPT.Launcher/SPT_Data/Launcher/Locales/French.json b/project/SPT.Launcher/SPT_Data/Launcher/Locales/French.json
index 5cbc72c..e4841f6 100644
--- a/project/SPT.Launcher/SPT_Data/Launcher/Locales/French.json
+++ b/project/SPT.Launcher/SPT_Data/Launcher/Locales/French.json
@@ -95,5 +95,6 @@
   "open_link_question_format_1": "Are you sure you want to open the following link: \n{0}",
   "open_link": "Open Link",
   "dev_mode": "Developer Mode",
-  "failed_to_save_settings": "Failed to save settings"
+  "failed_to_save_settings": "Failed to save settings",
+  "register_failed_name_limit": "name cannot exceed 15 characters"
 }
\ No newline at end of file
diff --git a/project/SPT.Launcher/SPT_Data/Launcher/Locales/German.json b/project/SPT.Launcher/SPT_Data/Launcher/Locales/German.json
index b168d6a..5bcec18 100644
--- a/project/SPT.Launcher/SPT_Data/Launcher/Locales/German.json
+++ b/project/SPT.Launcher/SPT_Data/Launcher/Locales/German.json
@@ -95,5 +95,6 @@
   "open_link_question_format_1": "Are you sure you want to open the following link: \n{0}",
   "open_link": "Open Link",
   "dev_mode": "Developer Mode",
-  "failed_to_save_settings": "Failed to save settings"
+  "failed_to_save_settings": "Failed to save settings",
+  "register_failed_name_limit": "name cannot exceed 15 characters"
 }
\ No newline at end of file
diff --git a/project/SPT.Launcher/SPT_Data/Launcher/Locales/Italian.json b/project/SPT.Launcher/SPT_Data/Launcher/Locales/Italian.json
index 6673693..a5022fc 100644
--- a/project/SPT.Launcher/SPT_Data/Launcher/Locales/Italian.json
+++ b/project/SPT.Launcher/SPT_Data/Launcher/Locales/Italian.json
@@ -95,5 +95,6 @@
   "open_link_question_format_1": "Are you sure you want to open the following link: \n{0}",
   "open_link": "Open Link",
   "dev_mode": "Developer Mode",
-  "failed_to_save_settings": "Failed to save settings"
+  "failed_to_save_settings": "Failed to save settings",
+  "register_failed_name_limit": "name cannot exceed 15 characters"
 }
\ No newline at end of file
diff --git a/project/SPT.Launcher/SPT_Data/Launcher/Locales/Japanese.json b/project/SPT.Launcher/SPT_Data/Launcher/Locales/Japanese.json
index fa5ed8f..c559182 100644
--- a/project/SPT.Launcher/SPT_Data/Launcher/Locales/Japanese.json
+++ b/project/SPT.Launcher/SPT_Data/Launcher/Locales/Japanese.json
@@ -95,5 +95,6 @@
   "open_link_question_format_1": "Are you sure you want to open the following link: \n{0}",
   "open_link": "Open Link",
   "dev_mode": "Developer Mode",
-  "failed_to_save_settings": "Failed to save settings"
+  "failed_to_save_settings": "Failed to save settings",
+  "register_failed_name_limit": "name cannot exceed 15 characters"
 }
\ No newline at end of file
diff --git a/project/SPT.Launcher/SPT_Data/Launcher/Locales/Korean.json b/project/SPT.Launcher/SPT_Data/Launcher/Locales/Korean.json
index 0b8bbf5..f0a50d2 100644
--- a/project/SPT.Launcher/SPT_Data/Launcher/Locales/Korean.json
+++ b/project/SPT.Launcher/SPT_Data/Launcher/Locales/Korean.json
@@ -95,5 +95,6 @@
   "open_link_question_format_1": "Are you sure you want to open the following link: \n{0}",
   "open_link": "Open Link",
   "dev_mode": "Developer Mode",
-  "failed_to_save_settings": "Failed to save settings"
+  "failed_to_save_settings": "Failed to save settings",
+  "register_failed_name_limit": "name cannot exceed 15 characters"
 }
\ No newline at end of file
diff --git a/project/SPT.Launcher/SPT_Data/Launcher/Locales/Polish.json b/project/SPT.Launcher/SPT_Data/Launcher/Locales/Polish.json
index e08485e..8c36d78 100644
--- a/project/SPT.Launcher/SPT_Data/Launcher/Locales/Polish.json
+++ b/project/SPT.Launcher/SPT_Data/Launcher/Locales/Polish.json
@@ -95,5 +95,6 @@
   "open_link_question_format_1": "Are you sure you want to open the following link: \n{0}",
   "open_link": "Open Link",
   "dev_mode": "Tryb Dewelopera",
-  "failed_to_save_settings": "Failed to save settings"
+  "failed_to_save_settings": "Failed to save settings",
+  "register_failed_name_limit": "name cannot exceed 15 characters"
 }
\ No newline at end of file
diff --git a/project/SPT.Launcher/SPT_Data/Launcher/Locales/Russian.json b/project/SPT.Launcher/SPT_Data/Launcher/Locales/Russian.json
index 0e51916..0b9c5bc 100644
--- a/project/SPT.Launcher/SPT_Data/Launcher/Locales/Russian.json
+++ b/project/SPT.Launcher/SPT_Data/Launcher/Locales/Russian.json
@@ -95,5 +95,6 @@
   "open_link_question_format_1": "Вы уверены, что хотите открыть следующую ссылку? \n{0}",
   "open_link": "Открыть ссылку",
   "dev_mode": "Developer Mode",
-  "failed_to_save_settings": "Failed to save settings"
+  "failed_to_save_settings": "Failed to save settings",
+  "register_failed_name_limit": "name cannot exceed 15 characters"
 }
\ No newline at end of file
diff --git a/project/SPT.Launcher/SPT_Data/Launcher/Locales/Spanish.json b/project/SPT.Launcher/SPT_Data/Launcher/Locales/Spanish.json
index 04d5f24..7cee140 100644
--- a/project/SPT.Launcher/SPT_Data/Launcher/Locales/Spanish.json
+++ b/project/SPT.Launcher/SPT_Data/Launcher/Locales/Spanish.json
@@ -95,5 +95,6 @@
   "open_link_question_format_1": "Are you sure you want to open the following link: \n{0}",
   "open_link": "Open Link",
   "dev_mode": "Developer Mode",
-  "failed_to_save_settings": "Failed to save settings"
+  "failed_to_save_settings": "Failed to save settings",
+  "register_failed_name_limit": "name cannot exceed 15 characters"
 }
\ No newline at end of file
diff --git a/project/SPT.Launcher/SPT_Data/Launcher/Locales/Turkish.json b/project/SPT.Launcher/SPT_Data/Launcher/Locales/Turkish.json
index 669c189..9f0c0a9 100644
--- a/project/SPT.Launcher/SPT_Data/Launcher/Locales/Turkish.json
+++ b/project/SPT.Launcher/SPT_Data/Launcher/Locales/Turkish.json
@@ -95,5 +95,6 @@
   "open_link_question_format_1": "Aşağıdaki bağlantıyı açmak istediğinizden emin misiniz? \n{0}",
   "open_link": "Bağlantıyı Aç",
   "dev_mode": "Developer Mode",
-  "failed_to_save_settings": "Failed to save settings"
+  "failed_to_save_settings": "Failed to save settings",
+  "register_failed_name_limit": "name cannot exceed 15 characters"
 }
\ No newline at end of file
diff --git a/project/SPT.Launcher/ViewModels/LoginViewModel.cs b/project/SPT.Launcher/ViewModels/LoginViewModel.cs
index 8376008..49a033b 100644
--- a/project/SPT.Launcher/ViewModels/LoginViewModel.cs
+++ b/project/SPT.Launcher/ViewModels/LoginViewModel.cs
@@ -49,6 +49,12 @@ namespace SPT.Launcher.ViewModels
                             // Create account if it doesn't exist
                             if (!string.IsNullOrWhiteSpace(Login.Username))
                             {
+                                if (Login.Username.Length > 15)
+                                {
+                                    SendNotification(LocalizationProvider.Instance.registration_failed, LocalizationProvider.Instance.register_failed_name_limit, NotificationType.Error);
+                                    return;
+                                }
+                                
                                 var result = await ShowDialog(new RegisterDialogViewModel(null, Login.Username));
 
                                 if (result != null && result is SPTEdition edition)