Fix the hang on exit for real this time. The other fix was just a practice run.

Toby Doom Launcher.py

@@ -942,18 +942,32 @@ class DoomLauncher(QMainWindow):
         self.speechHandler = SpeechHandler(self.configFile)
         self.iwadSelector = IWADSelector()  # Add IWAD selector
         self.gameProcess = None  # Track running game process
+        self.isQuitting = False  # Track if we're already quitting
         self.init_launcher_ui()
 
     def closeEvent(self, event):
         """Handle application close event"""
+        if self.isQuitting:
+            event.accept()
+            return
+
+        self.isQuitting = True
+
         # Terminate any running game process
         if self.gameProcess and self.gameProcess.poll() is None:
             try:
                 self.gameProcess.terminate()
                 self.gameProcess.wait(timeout=2)
             except:
+                try:
                     self.gameProcess.kill()
+                    self.gameProcess.wait(timeout=1)
+                except:
+                    pass
+
         event.accept()
+        # Force quit after accepting the event
+        QApplication.instance().quit()
 
     def check_and_fix_controls(self):
         """Check and fix control bindings in GZDoom configuration for all game types."""
@@ -3145,8 +3159,25 @@ class DoomLauncher(QMainWindow):
 
     def monitor_game_process(self, process):
         """Monitor game process and exit when it's done"""
-        process.wait()  # Wait for the game to finish
+        try:
-        QApplication.instance().quit()  # Quit the application
+            # Poll instead of blocking to allow interruption
+            while process.poll() is None and not self.isQuitting:
+                import time
+                time.sleep(0.1)  # Check every 100ms
+        except:
+            pass  # If interrupted or error, just exit
+        finally:
+            # Game has finished, quit the application if not already quitting
+            if not self.isQuitting:
+                try:
+                    self.isQuitting = True
+                    print("Game finished, exiting launcher...")
+                    sys.stdout.flush()
+                    # Force exit immediately
+                    import os
+                    os._exit(0)
+                except:
+                    pass  # Application might already be quitting
 
     def get_flags_from_file(self) -> List[str]:
         """Read additional launch flags from doom_flags.txt"""
@@ -3280,14 +3311,27 @@ if __name__ == "__main__":
     TOBY_VERSION: Final[str] = f"{int(TOBY_VERSION_NUMBER)}-{int(TOBY_VERSION_NUMBER * 10 % 10)}"
     setproctitle("Toby Doom Launcher")
 
+    app = QApplication(sys.argv)
+
     # Set up signal handling for clean shutdown
     import signal
+    import os
+
     def signal_handler(sig, frame):
-        QApplication.quit()
+        print("\nReceived signal, exiting...")
-    signal.signal(signal.SIGINT, signal_handler)
+        sys.stdout.flush()
-    signal.signal(signal.SIGTERM, signal_handler)
+        # Force exit immediately
+        os._exit(0)
+
+    signal.signal(signal.SIGINT, signal_handler)   # Ctrl+C
+    signal.signal(signal.SIGTERM, signal_handler)  # Termination signal
+    signal.signal(signal.SIGQUIT, signal_handler)  # Ctrl+\ - prevents core dump
+
+    # Also use a timer as backup
+    timer = QTimer()
+    timer.timeout.connect(lambda: None)  # Just wake up periodically
+    timer.start(100)  # Every 100ms
 
-    app = QApplication(sys.argv)
     window = DoomLauncher()
     window.show()
     sys.exit(app.exec())