Valve's Dota VR HUB is incredible. Take a peek at what it can do
Dota 2' Releases Social Spectator Mode 'VR Hub' – Road to VR
Dota 2' Releases Social Spectator Mode 'VR Hub' – Road to VR
DOTA 2 VR - YouTube
Valve, please, bring back Dota VR Hub. There are not many of us, but it would be a good touch, especially for watching DPC matches. Anyway it was only optional to download,
Video: What Dota 2's VR Spectator Mode Looks Like! | Rock Paper Shotgun
Valve Adds VR Spectator Mode to 'DOTA 2' International Championships