Defense of the Kings is a single-player strategy game in which players build and manage armies to defend their kingdom from invading forces. In this game, players are set in a fantasy world where they must strategically deploy units and upgrade defenses to withstand waves of enemies including warriors and monsters. It stands out with its diverse selection of five different races—Ancient, Human, Orc, Forest, and Undead—each offering unique abilities and tactical advantages, allowing for varied gameplay styles and strategic depth.