The cheapest graphics card you can play it on is an NVIDIA GeForce GTX 980. But, according to the developers the recommended graphics card is an NVIDIA GeForce GTX 1070. In terms of game file size, you will need at least 1 GB of free disk space available. TankVR 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 TankVR to its full potential. To play TankVR you will need a minimum CPU equivalent to an Intel Core i5-4570. However, the developers recommend a CPU greater or equal to an Intel Core i7-6700K to play the game.
TankVR will run on PC system with Windows 10 and upwards.