You can find the game on most major VR storefronts. While it is not free, Viveport Infinity subscribers can play it as part of their paid membership.
: Available for Quest 2, Quest Pro, and Rift . Horror Bar VR Free Download
: Compatible with Valve Index, HTC Vive, and Oculus Rift . PlayStation Store : Downloadable for PS VR (PS4) . Viveport : Standard purchase or via Infinity subscription. You can find the game on most major VR storefronts