VR refers to a "virtual reality experience" where you can get a sense of being physically present in a virtual world by wearing a dedicated headset.
To have a VR experience, you need VR goggles, a dedicated headset device.
■VR Compatible Products
DLsite sells VR compatible products for PC and smart mobile devices except actual photographic contents.
VR content have two categories: VR compatible and VR only. While the former is playable without a VR device, a VR device is indispensable for the latter.
VR content may require a specific VR device. Be sure to read the product details and check which VR device is compatible prior to purchase.
■About VR Goggles
○Rift (Oculus Rift DK1 / DK2)
[ Oculus Rift Official Website ]
The Oculus Rift has a 110-degree field of view, and delivers a great immersive VR experience.
It has a tracking system that allows you to see the right side in a virtual space by turning your head to the right, which creates a sense of full immersion.
○Google Cardboard / Hacosco
[ Google Cardboard (Link to Amazon.com) ]
This type uses a headset made of cardboard and a smartphone to get a simple and low-cost VR experience. Being built out of low-cost materials and using a smartphone display, this type is available at an affordable price.
The price depends on the manufacturer; typically, it is between 15 and 30 US dollars if it's made of cardboard, and under 100 US dollars if it's made of plastic.