diff --git a/legendary/cli.py b/legendary/cli.py
index f701aa7..fe85e49 100644
--- a/legendary/cli.py
+++ b/legendary/cli.py
@@ -568,6 +568,7 @@ class LegendaryCLI:
 
     def launch_game(self, args, extra):
         app_name = self._resolve_aliases(args.app_name)
+        addon_app_name = None
 
         # Interactive CrossOver setup
         if args.crossover and sys_platform == 'darwin':
@@ -578,6 +579,13 @@ class LegendaryCLI:
             return self._launch_origin(args)
 
         igame = self.core.get_installed_game(app_name)
+        if not igame and (game := self.core.get_game(app_name)) is not None:
+            # override installed game with base title
+            if game.is_launchable_addon:
+                addon_app_name = app_name
+                app_name = game.metadata['mainGameItem']['releaseInfo'][0]['appId']
+                igame = self.core.get_installed_game(app_name)
+
         if not igame:
             logger.error(f'Game {app_name} is not currently installed!')
             exit(1)
@@ -622,7 +630,8 @@ class LegendaryCLI:
                                                  disable_wine=args.no_wine,
                                                  executable_override=args.executable_override,
                                                  crossover_app=args.crossover_app,
-                                                 crossover_bottle=args.crossover_bottle)
+                                                 crossover_bottle=args.crossover_bottle,
+                                                 addon_app_name=addon_app_name)
 
         if args.set_defaults:
             self.core.lgd.config[app_name] = dict()
diff --git a/legendary/core.py b/legendary/core.py
index 34defcd..9181de0 100644
--- a/legendary/core.py
+++ b/legendary/core.py
@@ -689,9 +689,10 @@ class LegendaryCore:
                               disable_wine: bool = False,
                               executable_override: str = None,
                               crossover_app: str = None,
-                              crossover_bottle: str = None) -> LaunchParameters:
+                              crossover_bottle: str = None,
+                              addon_app_name: str = None) -> LaunchParameters:
         install = self.lgd.get_installed_game(app_name)
-        game = self.lgd.get_game_meta(app_name)
+        game = self.lgd.get_game_meta(addon_app_name if addon_app_name else app_name)
 
         # Disable wine for non-Windows executables (e.g. native macOS)
         if not install.platform.startswith('Win'):