Urban Siege Line
Use Up and Down Arrow keys to change lanes.
Press S to shoot.
Press 1, 2, and 3 to switch weapons.
Press A for air support.
Press D to deploy the support squad.
Press F to throw a grenade.
Press P or ESC to pause.
Mobile:
Use the on-screen button
Prioritize switching lanes with the Up and Down Arrow keys to avoid being overwhelmed by zombies in one lane. Use grenades (F) to deal area damage when multiple enemies are grouped together. Save air support (A) for boss waves or when a large horde is approaching to maximize its impact.
In Urban Siege Line, you defend a crumbling urban frontline from relentless zombie waves across three distinct lanes. You can switch between three weapon types using the 1, 2, and 3 keys, each offering different damage and firing patterns. When enemies overwhelm your defenses, call in air support with the A key to unleash explosive strikes. Deploy your support squad using D to reinforce your position, and throw grenades with F to clear clusters of zombies. The game challenges you to survive mission after mission, upgrading your armory between rounds to stay ahead of the zombie horde. Your survival depends on managing multiple threats across lanes while strategically using your limited resources.