The issue with mainstream game sites and virtual reality games is one of compatibility. Due to the nature of virtual reality, many game sites might not have integrated the technology needed to play such games. Additionally, some game sites do not offer the necessary downloads or support for virtual reality games.
In addition to compatibility, virtual reality games often require specialized hardware for better immersion. Users cannot play virtual reality games if they do not have the right equipment. This might limit the potential user base of some virtual reality games and make them potentially unpopular with mainstream gamers who do not want to invest in such hardware.
Finally, virtual reality is still a very new technology, meaning that developers still need to work on making these games better. Brands such as Oculus are working on their own platforms, making them fully compatible with mainstream gaming sites. However, these developments require time and effort, meaning that virtual reality games might not be as popular as other mainstream games yet.
In conclusion, the issue with mainstream game sites and virtual reality games lies in compatibility, specialized hardware requirements and the relatively new nature of the technology. Developers are currently working to make virtual reality games more popular within the mainstream gaming scene.