In Dungeon Busters, the players take the role of heroes exploring dungeons and defeating monsters in search of treasures. In order to defeat a monster, every player simultaneously plays a power card face-down then reveals the values. If two or more players play the same value, they are all ignored. If players are defeated the player who played the lowest value should return some treasures as a penalty. If players succeed to defeat the monster, players can divide rewards but the player who played the lowest value will go first.