Virtual reality has never quite made it to the mainstream. While movies such as Tron and The Matrix conjured immersive, action-packed renditions of computer-simulated environments, efforts to sell workable VR have failed because the systems were expensive and required bulky headsets that left many players woozy and disoriented. “Virtual reality has literally been around for 25 years,” says Michael Pachter, an analyst at Wedbush Securities. “The reason it hasn’t happened is that it’s impossible to get people through that seasick feeling.”