The zp1.0fullinstaller.exe file you have requested: Mods / Multiplayer / Zombie Panic / -Releases / Patches / Zombie Panic v1.0 Full Release - 54.64mb is not available. Perhaps try browsing all files for the game Half-Life and upload any files you want to share or are missing. This is the only information we could locate:
Zombie Panic, a zombie-survival mod for Half-Life 1, has released version 1.0. Check the readme for a list of changes.