Like most free games of this nature there is a world-building aspect and a real-time strategy component and although it is possible to limp along for free you will have to use real money if you are serious about making your kingdoms better. The graphics for a mobile game are impressive with every single unit of both armies individually rendered when they meet. The grid-based combat means you will not be able to freely move troops around and once battle comences combat is largely hands-off apart from being able to activate any perks you may have earned or triggering offensive charges that can give your troops a boost if timed correctly.