Contagion is the launch title for Monochrome LLC who's Founder is responsible for the award-winning and #1 played Half-Life 2 Modification, Zombie Panic: Source.Eugene, Marcus, and other Survivors return in the spiritual successor of the popular Half-Life 2 Modification Zombie Panic: Source! Contagion is a cooperative survival horror FPS built on the latest Source Engine where players are forced to watch their ammo and aim carefully otherwise be overrun by the zombie hordes.
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