The cheapest graphics card you can play it on is an NVIDIA GeForce GTX 970. But, according to the developers the recommended graphics card is an NVIDIA GeForce GTX 980. To play Aeon you will need a minimum CPU equivalent to an Intel Core i5-650. Whereas, an Intel Core i7-7Y75 is recommended in order to run it. Aeon system requirements state that you will need at least 7 GB of RAM. In terms of game file size, you will need at least 1 GB of free disk space available.
Aeon will run on PC system with win7 and upwards.