Forgiveness system requirements state that you will need at least 4 GB of RAM. In terms of game file size, you will need at least 6 GB of free disk space available. To play Forgiveness you will need a minimum CPU equivalent to an Intel Core i3-4120U. The cheapest graphics card you can play it on is an Intel HD 3000.
Forgiveness will run on PC system with Windows 7 or higher 64bit and upwards. Additionally it has Mac and Linux versions.