In terms of game file size, you will need at least 200 MB of free disk space available. Protagon VR system requirements state that you will need at least 4 GB of RAM. To play Protagon VR you will need a minimum CPU equivalent to an Intel Core i5-4590. Provided that you have at least an NVIDIA GeForce GTX 970 graphics card you can play the game.
Protagon VR will run on PC system with Windows 7 and upwards.