Virtual Reality Headsets
Virtual Reality headsets are head-mounted accessories that allow you to experience a game in Virtual Reality. With glasses that completely enclose your eyes, head tracking software, ambient sound, and motion controls, they quite literally let you experience the game as if you were "inside" it.
These headsets were pioneered by the Oculus Rift, which released for PC in 2016. Soon after, competitors launched their own models, like the HTC Vive or the Steam Index. Even Sony launched its Playstation VR for the PS4, which you can find here.
Now, you can´t just plug in the headset and "jump" into any game. VR games have to be designed for VR, they have to be made from the ground up to take advantage of the headset.
Luckily, more and more VR games are getting made today, and there are stores that sell not only games but movies and "pictures" too. The Steam VR store, Microsoft Mixed Reality, Viveport and Oculus Store are a few of these shops.
Unfortunately, while there has been a whole slew of new VR games, many are done to "cash in" on the trend. As a result, the number of games that are actually well made and fun to play is on the minority. But they're quite a few outstanding experiences that make the headsets worth their asking price.
VR is quite taxing on your computer. While the minimum requirements vary from headset to headset, as a general rule of thumb. If your computer doesn't have at least 8 Gb of RAM and an NVIDIA GTX 1050Ti or an AMD Radeon RX 470 (or higher) graphics card, then the VR will now work, or it will run poorly.
Not all of the headsets require a PC to work, however. The disadvantage for these "independent" headsets is that they only have access to the "in-house" store. All the games on Steam´s VR are unavailable to them.
Here is the list of VR headsets available for the PC and standalone. Click on their model or picture to go to the offsite store page of each one.
Virtual Reality Accessories
Here we have additional accessories to complement your VR headset. For the Vive, there is an adapter to play wirelessly, specially made earbuds, trackers, and the base station (that works with other VR headsets).
There are also standalone controllers for the Vive and the Oculus, in case you want to replace one or have a spare. Finally, there is a travel case for the Oculus Quest, so you can haul it around without damaging it. Here´s the list of VR accessories: