Shooter: Outbreak Protocol is a free online zombie shooting game featuring three maps and six weapons. Battle waves of undead across Raccoon City, a police station, and an Umbrella laboratory. Earn cash, unlock weapons, and upgrade your firepower to survive tougher waves. Play this first-person shooter directly in your browser. More Similar Games
Tags: Csgo First person shooter Shoot Shoot 'em up Shooter Shooting Survival Zombie