Update log
Full Half-Life update
The complete published notes, normalized for clean reading and source attribution.
Extracted changes
- UI and audio

Before Valve reinvented cooperative gaming with Left 4 Dead, there was Zombie Panic! A mod for the original Half-Life, Zombie Panic! pitted groups of players against a single, player-controlled brain-muncher. 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... Read more.
Source