The cheapest graphics card you can play it on is an NVIDIA GeForce 6100. To play Onager! you will need a minimum CPU equivalent to an Intel Pentium 4 2.00GHz. In terms of game file size, you will need at least 100 MB of free disk space available. Onager! system requirements state that you will need at least 512 MB of RAM.
Onager! will run on PC system with Windows 7/8/10 and upwards.