only game I have had a problem with so far has been arizona sunshine.
And it wasn't the biggest problem with that game by far.
Mostly due to poor porting, and for me the shortness of the rift cable itself.
But honestly it, apart from VR itself, it was a shit game.
Constant annoying call outs during game play from your first person character.
Dreadful optimisation issues, some areas fps would degrade to the point of near unplayabillity.
Robo Recall is multitudes better in practically every way.
If that's the game you are thinking of, drop it.
As for other room scale titles they work rather well in the rift.
Less difference between the vive and rift than I would have expected, I only have two sensors btw.
But they still rubber stamp "require 360° area" as a matter of fact.
But even most vive games are fairly forward facing, having a horde of enemies sneak up and kill you when your field of view and situational awareness is as limited as it is in VR. It simply becomes poor gameplay.
anyhoo I digress.
If I'm not entirely mistaken I believe oculus has a similar refund policy to steam now.
So you should be able to test a game out a little before fully having to commit.
Wether a game truly needs the third sensor is mostly down to the games own gameplay and design.
But as mentioned I see practically all vive/rift cross titles get the "360°" rubber stamp merely as a method of oculus covering their backs.
For instance mounting the cameras high and angled, like above standing height they gain far more coverage as well and that's probably all that will be needed.
Hey I'm Thor -
People call me Bob.
Rule 1: Pillage. Then burn.
Rule 2: No such thing as overkill, as long as there are reloads.