Valve Challenges Oculus with 'Dota 2' VR Headset

https://news.yahoo.com/valve-challenges-oculus-dota-2-173421163.html

Why would they name it after the one title that cannot be used for VR? This is my only question for now.

That’s a very good question.

A different article talked about since sort of spectator seat demo for Dota2 vr.

Founded in 2004, Leakfree.org became one of the first online communities dedicated to Valve’s Source engine development. It is more famously known for the formation of Black Mesa: Source under the 'Leakfree Modification Team' handle in September 2004.