玩法介绍
The city fell. You are the last line of defense holding the street corner. Endless zombie waves never stop. Surviving pays for your upgrades between waves: heavier ammo, cover drones, turrets, and gunship calls. City Siege: Urban choke point survival. Fortified Compound: Double the horde, four corner turrets. Daily Quests: 3 fresh daily challenges rewarding smart play.
操作方式
WASD Arro...