A visitor tries Sony's "Project Morpheus" virtual reality headset at an exhibition stand during the Gamescom 2014 fair in Cologne August 13, 2014. The Gamescom convention, Europe's largest video games trade fair, runs from August 13 to August 17. REUTERS/Ina Fassbender (GERMANY - Tags: ENTERTAINMENT BUSINESS SOCIETY SCIENCE TECHNOLOGY) 

A man plays Sony's Project Morpheus "London Heist" video game with a virtual reality headset and move controllers at the Sony PlayStation booth at the Electronic Entertainment Expo, or E3, in Los Angeles, California, United States, June 16, 2015. REUTERS/Lucy Nicholson

A Sony PlayStation virtual reality headset is seen at the Electronic Entertainment Expo, or E3, in Los Angeles, California, United States, June 16, 2015. REUTERS/Lucy Nicholson

A man plays a video game on a Samsung mobile phone attached to an Oculus virtual reality headset at the Electronic Entertainment Expo, or E3, in Los Angeles, California, United States, June 16, 2015. REUTERS/Lucy Nicholson

Attendees try out Sony's Project Morpheus virtual reality headset at the 2014 Electronic Entertainment Expo, known as E3, in Los Angeles, California June 11, 2014. REUTERS/Kevork Djansezian (UNITED STATES - Tags: SCIENCE TECHNOLOGY BUSINESS SOCIETY) 

Members of the media try earphones and a headset used for virtual reality at the Sundance Film Festival in Park City, Utah January 23, 2015. The content is viewed on a wraparound-style headset that project a 360-degree panorama, giving viewers the feel of being in the action. REUTERS/Jim Urquhart (UNITED STATES - Tags: ENTERTAINMENT SOCIETY SCIENCE TECHNOLOGY) 

An employee sits inside a virtual reality connected car cockpit built by Segula Technologies during the first press day ahead of the 85th International Motor Show in Geneva March 3, 2015. REUTERS/Arnd Wiegmann (SWITZERLAND - Tags: TRANSPORT BUSINESS)

A man plays a war video game with an Oculus virtual reality headset at the Electronic Entertainment Expo, or E3, in Los Angeles, California, United States, June 16, 2015. REUTERS/Lucy Nicholson

Paul Bettner, co-founder of Playful Corp which created the new "Lucky's Tale" game for Oculus Rift, tries on the Oculus VR Inc. Rift Development Kit 2 (DK2) headset to play "Lucky's Tale" at the 2014 Electronic Entertainment Expo, known as E3, in Los Angeles, California June 11, 2014. There has been a rising interest in virtual reality platforms among publishers and developers, who hope the years-old technology -- which creates a 360-degree view that immerses players in fantasy settings -- can finally become a viable platform to reverse shrinking video game industry revenues and draw a new generation of users. Picture taken June 11. REUTERS/Kevork Djansezian (UNITED STATES - Tags: BUSINESS SCIENCE TECHNOLOGY) 

People try out Oculus VR's headset Oculus rift development kit 2 at its booth in Tokyo Game Show 2014 in Makuhari, east of Tokyo September 18, 2014. About 421 companies and organizations are participating in the Tokyo Games Show 2014, which will be held until September 21. REUTERS/Yuya Shino (JAPAN - Tags: ENTERTAINMENT SOCIETY BUSINESS TPX IMAGES OF THE DAY) 

A man wearing an Oculus VR headset demonstrates a first person shooter game in a Virtuix Omni virtual reality system at the International Consumer Electronics show (CES) in Las Vegas, Nevada January 6, 2015. Wearing special shoes with sensors, the player can actually run in the game. REUTERS/Rick Wilking (UNITED STATES - Tags: BUSINESS SCIENCE TECHNOLOGY) 

Brent Offner plays Street Luge on a Sony "Project Morpheus" virtual reality system at the 2014 Electronic Entertainment Expo, known as E3, in Los Angeles, California June 10, 2014. REUTERS/Jonathan Alcorn (UNITED STATES - Tags: ENTERTAINMENT SCIENCE TECHNOLOGY BUSINESS) 

An attendee tries out Sony's Morpheus virtual reality headset at the 2014 Electronic Entertainment Expo, known as E3, in Los Angeles, California June 10, 2014. There has been a rising interest in virtual reality platforms among publishers and developers, who hope the years-old technology -- which creates a 360-degree view that immerses players in fantasy settings -- can finally become a viable platform to reverse shrinking video game industry revenues and draw a new generation of users. Picture taken June 10. REUTERS/Kevork Djansezian (UNITED STATES - Tags: BUSINESS SCIENCE TECHNOLOGY) 

Smartphones are attached to toy guns for a virtual reality shooting game at the Hong Kong Toys and Games Fair January 6, 2014. The app is expected to sell at a retail price of around US$40. Four trade fairs, including Asia's largest toy fair, opened on Monday in the territory, with more than 2,800 exhibitors featuring a wide range of toys, baby products and stationery, according to the official press release. REUTERS/Bobby Yip (CHINA - Tags: SOCIETY SCIENCE TECHNOLOGY) 

A 3D display is seen through 3D glasses during a demonstration by virtual reality contents and technology provider Solidray Co at the 3D and Virtual Reality Expo in Tokyo June 23, 2010. REUTERS/Yuriko Nakao (JAPAN - Tags: BUSINESS SCI TECH) 

An employee of Nihon Binary Co demonstrates the company's virtual space bodily sensation system at the Industrial Virtual Reality Expo 2009 in Tokyo June 24, 2009. REUTERS/Toru Hanai (JAPAN BUSINESS SOCIETY SCI TECH)