I tested it a time back. So if they haven't worked out something new:
A real Gamer would never call this a Game.
If a casual gamer or browser game gamer can call this a game... I doubt it...
It's maybe something you can show someone that doesnt knows about vr for a quick fun .. let him search an exit why not..or something kids might enjoy for a bit..(shoot with your avatar some vr enemies in a custom made lvl)
There is nothing else you can do.
What is the minimum criteria that you can call something a game? I don't know it.
But this one would certainly be around that trigger lvl.
Unfortunatly that's what should give voxel the value. 
No motivation to play then no one will buy.