Here are the Hellsweeper VR System Requirements (Minimum)
CPU: Intel i5-4590
RAM: 8 GB
VIDEO CARD: NVIDIA GeForce GTX 1070
DEDICATED VIDEO RAM: 8192 MB
PIXEL SHADER: 5.1
VERTEX SHADER: 5.1
OS: Windows 7
FREE DISK SPACE: 12 GB
Hellsweeper VR Recommended Requirements
CPU: Intel i7-4770 or better
RAM: 16 GB
VIDEO CARD: NVIDIA GeForce GTX 1080 or better
DEDICATED VIDEO RAM: 8192 MB
PIXEL SHADER: 5.1
VERTEX SHADER: 5.1
OS: Windows 10
FREE DISK SPACE: 12 GB