Dark Days system requirements state that you will need at least 2 GB of RAM. The cheapest graphics card you can play it on is an NVIDIA GeForce 510. You will need at least 200 MB of free disk space to install Dark Days. An Intel Pentium 4 2.00GHz CPU is required at a minimum to run Dark Days.
Dark Days will run on PC system with Windows Vista 32 / 64 bit and upwards.