Gradually developers are taking advantage of the Augmented Reality (AR) tools that Apple makes available on iOS 11. An example of this is the new game from Halfbrick, called Siege Breakers.
The game mode is almost like an Angry Birds in first person (by the way, why hasn’t Rovio done something like that yet?). You have to calculate your bombs’ throwing direction, to reach specific locations in a virtual castle that you view through the camera on the floor of your home, office or wherever you are. Your objective is to blow up a certain number of flags, but you have limited ammunition for that, which forces you to be creative in the most difficult stages.
The game is free and available for iPhone and iPad with iOS 11 or later, through this link.