Ratergy system requirements state that you will need at least 500 MB of RAM. An Intel Core i3-530 CPU is required at a minimum to run Ratergy. The cheapest graphics card you can play it on is an Intel HD 4000. In terms of game file size, you will need at least 100 MB of free disk space available.
Ratergy will run on PC system with Windows 7, 8.1, 10 and upwards.