diff --git a/oqtopus/core/modules_config.py b/oqtopus/core/modules_config.py
index d21b66d..9ce1088 100644
--- a/oqtopus/core/modules_config.py
+++ b/oqtopus/core/modules_config.py
@@ -7,6 +7,7 @@ class ModuleConfig(BaseModel):
     organisation: str
     repository: str
     exclude_releases: str | None = None  # Regexp pattern to exclude releases
+    experimental: bool = False  # Whether this module is experimental
 
 
 class ModulesConfig(BaseModel):
diff --git a/oqtopus/default_config.yaml b/oqtopus/default_config.yaml
index c834a3d..176acd2 100644
--- a/oqtopus/default_config.yaml
+++ b/oqtopus/default_config.yaml
@@ -15,6 +15,7 @@ modules:
     id: tce
     organisation: teksi
     repository: cemetery
+    experimental: true
 
   - name: SIGNALO
     id: signalo
diff --git a/oqtopus/gui/main_dialog.py b/oqtopus/gui/main_dialog.py
index 5f58f29..737e562 100644
--- a/oqtopus/gui/main_dialog.py
+++ b/oqtopus/gui/main_dialog.py
@@ -180,6 +180,8 @@ def __open_settings_dialog(self):
         if dlg.exec() == QDialog.DialogCode.Accepted:
             # Update column visibility from settings
             self.__logsWidget.update_column_visibility_from_settings()
+            # Reload modules in case experimental visibility changed
+            self.__moduleSelectionWidget.reloadModules()
 
     def __cleanup_cache(self):
         """Delete all cached data (downloaded packages and GitHub API cache)."""
diff --git a/oqtopus/gui/module_selection_widget.py b/oqtopus/gui/module_selection_widget.py
index daddeeb..4dc5e2c 100644
--- a/oqtopus/gui/module_selection_widget.py
+++ b/oqtopus/gui/module_selection_widget.py
@@ -43,23 +43,7 @@ def __init__(self, modules_config_path, parent=None):
 
         self.module_progressBar.setVisible(False)
 
-        self.module_module_comboBox.clear()
-        self.module_module_comboBox.addItem(self.tr("Please select a module"), None)
-        if self.__modules_config is not None:
-            for config_module in self.__modules_config.modules:
-                module = Module(
-                    name=config_module.name,
-                    id=config_module.id,
-                    organisation=config_module.organisation,
-                    repository=config_module.repository,
-                    exclude_releases=config_module.exclude_releases,
-                    parent=self,
-                )
-                self.module_module_comboBox.addItem(module.name, module)
-                module.signal_versionsLoaded.connect(self.__loadVersionsFinished)
-                module.signal_developmentVersionsLoaded.connect(
-                    self.__loadDevelopmentVersionsFinished
-                )
+        self.__populate_module_combobox()
 
         self.module_latestVersion_label.setText("")
         QtUtils.setForegroundColor(self.module_latestVersion_label, PluginUtils.COLOR_GREEN)
@@ -80,6 +64,39 @@ def __init__(self, modules_config_path, parent=None):
             self.__packagePrepareTaskProgress
         )
 
+    def reloadModules(self):
+        """Reload the module combobox, e.g. after settings change."""
+        self.__populate_module_combobox()
+
+    def __populate_module_combobox(self):
+        """Populate the module combobox based on config and current settings."""
+        self.module_module_comboBox.blockSignals(True)
+        self.module_module_comboBox.clear()
+        self.module_module_comboBox.addItem(self.tr("Please select a module"), None)
+        show_experimental = PluginUtils.get_show_experimental_modules()
+        if self.__modules_config is not None:
+            for config_module in self.__modules_config.modules:
+                if config_module.experimental and not show_experimental:
+                    continue
+                module = Module(
+                    name=config_module.name,
+                    id=config_module.id,
+                    organisation=config_module.organisation,
+                    repository=config_module.repository,
+                    exclude_releases=config_module.exclude_releases,
+                    parent=self,
+                )
+                display_name = (
+                    f"{module.name} (experimental)" if config_module.experimental else module.name
+                )
+                self.module_module_comboBox.addItem(display_name, module)
+                module.signal_versionsLoaded.connect(self.__loadVersionsFinished)
+                module.signal_developmentVersionsLoaded.connect(
+                    self.__loadDevelopmentVersionsFinished
+                )
+        self.module_module_comboBox.blockSignals(False)
+        self.module_module_comboBox.setCurrentIndex(0)
+
     def close(self):
         if self.__packagePrepareTask.isRunning():
             # Disconnect signals first to prevent crashes when emitting to destroyed widgets
diff --git a/oqtopus/gui/settings_dialog.py b/oqtopus/gui/settings_dialog.py
index 4fa5296..e2469b7 100644
--- a/oqtopus/gui/settings_dialog.py
+++ b/oqtopus/gui/settings_dialog.py
@@ -12,6 +12,9 @@ def __init__(self, parent=None):
 
         self.githubToken_lineEdit.setText(PluginUtils.get_github_token())
         self.allow_multiple_modules_checkBox.setChecked(PluginUtils.get_allow_multiple_modules())
+        self.show_experimental_modules_checkBox.setChecked(
+            PluginUtils.get_show_experimental_modules()
+        )
 
         # Load log column visibility settings
         self.log_show_datetime_checkBox.setChecked(PluginUtils.get_log_show_datetime())
@@ -26,6 +29,9 @@ def __init__(self, parent=None):
     def accept(self):
         PluginUtils.set_github_token(self.githubToken_lineEdit.text())
         PluginUtils.set_allow_multiple_modules(self.allow_multiple_modules_checkBox.isChecked())
+        PluginUtils.set_show_experimental_modules(
+            self.show_experimental_modules_checkBox.isChecked()
+        )
         PluginUtils.set_log_show_datetime(self.log_show_datetime_checkBox.isChecked())
         PluginUtils.set_log_show_level(self.log_show_level_checkBox.isChecked())
         PluginUtils.set_log_show_module(self.log_show_module_checkBox.isChecked())
diff --git a/oqtopus/ui/settings_dialog.ui b/oqtopus/ui/settings_dialog.ui
index 5202cfd..a68e55d 100644
--- a/oqtopus/ui/settings_dialog.ui
+++ b/oqtopus/ui/settings_dialog.ui
@@ -52,6 +52,13 @@
     </widget>
    </item>
    <item row="2" column="0" colspan="2">
+    <widget class="QCheckBox" name="show_experimental_modules_checkBox">
+     <property name="text">
+      <string>Show experimental modules</string>
+     </property>
+    </widget>
+   </item>
+   <item row="3" column="0" colspan="2">
     <widget class="QGroupBox" name="log_settings_groupBox">
      <property name="title">
       <string>Log display columns</string>
@@ -81,7 +88,7 @@
      </layout>
     </widget>
    </item>
-   <item row="3" column="1">
+   <item row="4" column="1">
     <spacer name="verticalSpacer">
      <property name="orientation">
       <enum>Qt::Vertical</enum>
@@ -94,7 +101,7 @@
      </property>
     </spacer>
    </item>
-   <item row="4" column="0" colspan="3">
+   <item row="5" column="0" colspan="3">
     <widget class="QDialogButtonBox" name="buttonBox">
      <property name="orientation">
       <enum>Qt::Horizontal</enum>
diff --git a/oqtopus/utils/plugin_utils.py b/oqtopus/utils/plugin_utils.py
index f778907..ed86dce 100644
--- a/oqtopus/utils/plugin_utils.py
+++ b/oqtopus/utils/plugin_utils.py
@@ -241,6 +241,16 @@ def set_allow_multiple_modules(allow: bool):
         settings = QSettings()
         settings.setValue("oqtopus/allow_multiple_modules", allow)
 
+    @staticmethod
+    def get_show_experimental_modules():
+        settings = QSettings()
+        return settings.value("oqtopus/show_experimental_modules", False, type=bool)
+
+    @staticmethod
+    def set_show_experimental_modules(show: bool):
+        settings = QSettings()
+        settings.setValue("oqtopus/show_experimental_modules", show)
+
     @staticmethod
     def get_log_show_datetime():
         settings = QSettings()