You will need at least 250 MB of free disk space to install 0 Day. 0 Day system requirements state that you will need at least 8 GB of RAM. The cheapest graphics card you can play it on is an NVIDIA GeForce GTX 970. Futhermore, an NVIDIA GeForce GTX 980 Ti is recommended in order to run 0 Day with the highest settings. To play 0 Day you will need a minimum CPU equivalent to an Intel Core i7-4770K.
0 Day will run on PC system with Windows 7 and upwards.