Are any of you old enough (or Half-Life-obsessed enough) to remember Zombie Panic? One of the original, Infected-style PvP experiences that no doubt inspired similar modes in the likes of Halo and Call of Duty, it put a team of single-life, gun-toting survivors against a rival team of zombies with unlimited respawns. Should a survivor die, they become a zombie and join the other team. While a Source engine sequel has been around for a while on Steam, the original Zombie Panic mod has been absent from Valve’s platform for 22 years – until now.

 Zombie Panic was a standout multiplayer mod for Half-Life, and now it’s finally been brought to Steam after two decades of waiting.  PCGamesN