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The outbreak swept the world in days. Cities burned. Governments fell.
Now, in the ruins of an abandoned research facility, a single power core hums in the dark — broadcasting a rescue signal that's keeping you alive.
If it falls, the perimeter fails. The horde floods in. And your signal goes silent.
Welcome to Hold The Line — a brutal co-op zombie survival FPS where 1–4 players defend the facility's power core against escalating waves of the undead. Every wave, the horde grows. Every wave, you grow stronger. Hold long enough, and rescue might just come.
PROTECT THE CORE
The reactor at the heart of the facility powers everything — your lights, your defenses, and the signal calling for help. If it dies, you die. Reinforce its barricades, repair the damage, and upgrade its hull to survive longer.
SURVIVE THE HORDE
Face relentless waves of the undead. Shamblers test your defenses. Sprinting runners flank your position. Massive tanks tear through barricades like paper. The longer you survive, the deadlier they get.
BUILD & UPGRADE
Earn currency from every kill. Spend it at the workbench between waves: upgrade the core's health, buy better weapons, restock ammunition, or unlock powerful perks that match your playstyle.
4-PLAYER ONLINE CO-OP
Team up with friends via Steam. Share kills, revive downed teammates, and coordinate your defense — because the horde doesn't care if you're alone or together. They just keep coming.
BRUTAL ARSENAL
From baseball bats to assault rifles, from fragmentation grenades to fire axes — wield a deadly arsenal built for one purpose: survival. Every shot counts. Every reload matters.
THE ABANDONED FACILITY
Explore a decaying industrial complex filled with secrets, supply caches, and lurking horrors. Find new weapons, ammo crates, and hidden perks scattered across the wreckage of civilization.
HOW LONG CAN YOU HOLD?
Every run pushes you further. Every wave teaches you something new. Your progress saves between sessions — build the ultimate loadout, unlock every perk, and climb the leaderboards.
The dead don't sleep. The dead don't tire. The dead don't stop.
Can you?
HOLD THE LINE.
