In the city you live in, a monster army suddenly comes. In order to protect the safety of your homeland, pick up weapons to resist the attack of the monster army! In the game, we need to control the firearms to destroy all the enemies, you can also call for rescue, upgrade the weapons, and improve the combat effectiveness! monster shooter, city defense, survival game, shooting game, action game, upgrade weapons, combat, firearms, rescue mission, tactical gameplay, city attack, monster army, defense strategy, 3d shooting, first person shooter