Get to know Trier in a unique and affordable way. We offer a self-guided tour via our online app. You play a fun, family-friendly game. Answer questions about the locations and do search assignments. All on your smartphone. Log in to our free city game app and enjoy the city. Not a guide, but you decide when to start, stop, or pause. Use GPS to find the nicest squares, streets, and monuments. Get the most interesting facts about the city. Discover Trier with our unique city game app. Instructions for starting the tour will be given after booking. You can do this tour whenever you choose.