In order for you to play Zombie Shooter on Windows with minimal graphics settings, your computer must meet the following requirements
OS *:
Windows 2000 / XP / Vista
Processor (CPU):
400 MHz
Memory (RAM):
128 MB
Graphics Card:
Direct3D compatible 3D graphics card with 32 MB RAM
DirectX®:
8.1
Hard Drive:
50 MB Free Space
Sound:
DirectSound compatible sound card