This is a quick tip on how to change your UDK Game window title which is displayed in window mode. Here is an example screenshot.

UDK Title Window Renamed

To rename, open up DefaultEngineUDK.ini and under [URL] section change GameName to the name of your own game. Thats it!! Run your game in window mode and see your Awesome Game Name!. 🙂

Here is a screenshot:

Click for larger image