The game is played like many of the games released by Social Point. In Dragon City you will start on a magical dragon island where you create dragons in your hatchery. While you grow your dragons you will earn gold by placing them in certain habitats. One of the more interesting and unique parts of the game is breeding your dragons. You can create all sorts of different combinations by breeding a fire dragon with a water dragon for instance. Then you can take your dragons and duke it out in PvP battles against your friends and rivals.
The gameplay is similar to what you would find in other Facebook games like Farmville. You can visit your friends Dragon cities and level up your dragons by completing chores and tasks. Thre is no energy bar, so you can play the game as much as you like without having to wait after doing a bunch of things around your city.