The full game can be unlocked from the demo or by visiting the official website.
"The only thing standing between peace and the zombie apocalypse is 90 million tons of Honest John baby nukes, 300 million tons of Vulcan-65 airstrike missiles, and a generous amount of napalm. Use them wisely."
Download Atom Zombie Smasher Demo [Windows] (24 MB)
Download Atom Zombie Smasher Demo [Mac] (31 MB)
Download Atom Zombie Smasher Demo [Linux] (25 MB)
Atom Zombie Smasher System Requirements
Operating system: Windows 2000/XP/Vista, Linux, Mac OSX 10.4
RAM memory: 512MB
Free hard drive space: 50MB
Sound: Anything from the past 15 years
Controls: Keyboard and mouse