You will need at least 2 GB of free disk space to install ZKILLER. To play ZKILLER you will need a minimum CPU equivalent to an Intel Core 2 Duo E8200. However, the developers recommend a CPU greater or equal to an AMD Phenom II X4 B40 to play the game. The cheapest graphics card you can play it on is an AMD Radeon HD 6850. But, according to the developers the recommended graphics card is an AMD Radeon R9 280. ZKILLER system requirements state that you will need at least 2 GB of RAM. Additionally, the game developers recommend somewhere around 3 GB of RAM in your system.
ZKILLER will run on PC system with Win7 32/66 - Win8/8.1 32/64 and upwards.