You will need at least 1 GB of free disk space to install inVR. inVR system requirements state that you will need at least 8 GB of RAM. If possible, make sure your have 16 GB of RAM in order to run inVR to its full potential. The cheapest graphics card you can play it on is an NVIDIA GeForce GTX 970. Futhermore, an NVIDIA GeForce GTX 980 is recommended in order to run inVR with the highest settings. To play inVR you will need a minimum CPU equivalent to an Intel Core i5-4590.
inVR will run on PC system with Windows 7 SP1 and upwards.