Description Zombie stress is a Half Life 2 Single Player modification, which instead of giving you some complicated story or long winded puzzles to over come gives you what you want... zombies!
Removing the need for stories to interest you, this small mod is designed to just allow you to relieve some stress by giving you 3 different styles of zombie destruction with many weapons.
This mod is not aimed to be amazing, just a bit of fun. Though a lot of it is turning to be a turret frenzy but you can choose your game play. The machine gun and shot gun are pure favourites for pure slaughter and maximum stress relief. To install:
Extract the archive into "... steam/steamapps/sourcemods" and relaunch Steam.