The cheapest graphics card you can play it on is an NVIDIA GeForce 510. To play Militia you will need a minimum CPU equivalent to an Intel Pentium 4 2.00GHz. You will need at least 60 MB of free disk space to install Militia. Militia system requirements state that you will need at least 512 MB of RAM.
Militia will run on PC system with Windows XP or newer and upwards. Additionally it has Mac and Linux versions.