"Defender of the Brave" is a card-based idle placement game themed on the undead and skeletons. Players will act as a leader who can summon and command an undead army. The game features a rich variety of undead characters, including but not limited to skeleton warriors, zombies, ghosts, and other dark creatures. Each creature has unique skills and attributes, such as the tenacious cooperation of humans, the long-range firepower of elves, the guerrilla tactics of orcs, and the intimidating ability of the undead in attrition warfare. Players need to carefully plan their card decks and utilize the synergistic effects between different races to build the most powerful undead legion.