Zombie Army Trilogy Minimum Requirements
CPU:Dual-core CPU with SSE3 (Intel® Pentium D 3GHz / AMD Athlon 64 X2 4200) or better
CPU Speed:Info
RAM:2 GB
OS:Microsoft Windows Vista (Service Pack 2) or Windows 7 or Windows 8. Windows XP is NOT supported.
Video Card:Microsoft DirectX 10.0 compatible graphics card with 512 MB of memory (ATI Radeon HD 5870) or better 
Sound Card:Yes
Free Disk Space:15 GB