Here are the Zombie Survival Game Online System Requirements (Minimum)
CPU: Intel Core i5 6600K / Ryzen 3 1300
RAM: 4 GB
VIDEO CARD: Radeon RX 470 / GeForce GTX 1050
DEDICATED VIDEO RAM: 2048 MB
PIXEL SHADER: 5.1
VERTEX SHADER: 5.1
OS: Windows 7, 64-bit
FREE DISK SPACE: 10 GB