Discover the popular attractions of Cologne as well as its hidden secrets on this interactive city discovery game. You won’t have to learn how to use new devices, as the game can be accessed from your smartphone. It can also be used on multiple devices at once, so you won’t have a problem if your battery dies. Solve 15 clues and discover Cologne’s old town gems while you're playing. It’s a great way to go sightseeing and have fun at the same time.