When I buy a new game from Steam or from Amazon, I always first check the game specifications to see whether it can run on my PC or not. Some games have really high requirements and in the past I have been forced to upgrade my GPU (graphics card) just so that I can play those games properly. And now VR games are being released that give you that virtual reality experience through the use of VR headsets. If you do not have a VR headset, then you can easily buy one from Amazon or from any local store.
But before buying a VR game you should know that the VR games have much higher system requirements than the ordinary PC games. This means that your system should have really good CPU, GPU and RAM performance before you can enjoy VR games on it. You can use a freeware benchmarking tool called VRMark to see if your PC is ready to run those resource hungry VR games.
VRMark does not require you to attach a VR headset to your PC for VRMark to work. It just runs really high resolution animations in order to put your PC under all kinds of stress to benchmark it for the VR games requirements. It comes with two VR benchmark tests (orange room and blue room) that run on your PC and output is given to your monitor (you can attach the headset but it is no required).
The orange room benchmark has smaller system requirements and tests your PC for Oculus Rift and HTC Vive. The blue room benchmark is for paid version only and has elements that have much higher system requirements and may not run on all the PC systems. On my test PC, the orange room test managed to run very slowly.
At the end of each test, you will be shown the benchmark score and a verdict whether your PC is VR ready or not. If your PC fails the test, then it will show you if your PC is close enough to run the VR games or it is simply impossible to run those games on your PC.
You can download VRMark Benchmark for PC from https://www.futuremark.com/benchmarks/vrmark.