[STEAM] 22 years later, this classic Half-Life zombie survival mod shambles onto Steam with all new features

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Before Valve reinvented cooperative gaming with

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, there was

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! A mod for the original Half-Life, Zombie Panic! pitted groups of players against a single, player-controlled brain-********. Which doesn't sound all that challenging, except that any survivors killed by the zombie would rise again as zombies themselves, slowly turning the tide against survivors until there was only one sorry human remaining...

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