Zombie Panic! arrives with a new fatigue system, reworked maps and "zombie vision".

There are free Half-Life games now available on Steam, both of which are mods that have been transformed into full games. Consquently, neither comes from Valve itself, and as a result, neither has ...

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 ...