https://www.gamespot.com/articles/fallout-4-vr-is-free-when-you-buy-htc-vive/1100-6453731/

HTC has announced a nice incentive for people thinking about picking up an HTC Vive virtual reality headset. The company revealed today that HTC Vive orders starting today, October 2, come with a free copy of Fallout 4 VR. The game launches in December, so you won't get the game right away. The game itself is priced at $60.

Fallout 4 VR is the entire Fallout 4 experience in virtual reality. Some elements of the game have been "reimagined" for better play in virtual reality.