Well it didn't really come out of nowhere. Valve and Oculus worked very closely together before the FB acquisition. Valve had been working on its prototype alon

Well it didn't really come out of nowhere. Valve and Oculus worked very closely together before the FB acquisition. Valve had been working on its prototype alongside Oculus, and only decided to bring it to market when Oculus sold to FB as they knew FB would want to control the software, which Valve wanted to do.