The Zombie Wave DLC: In this DLC, the game is completely free and is a shooting survival Roguelike type. Players need to pick up a gun or knife to resist endless zombie invasions, and you are the only one in the process. The Zombie Wave DLC takes the game to a whole new level, integrating shooting, survival, and Roguelike elements, allowing players to experience endless excitement and challenges in the face of an endless wave of zombies.