[alexqgb]

Not if you understand the difference between a system that only tracks three degrees of freedom (i.e., rotational motion only / e.g., Daydream and GearVR), and one that tracks all six (i.e., rotational + translational / e.g., Vive and Rift).

Since 3 DoF systems are widely-viewed within the industry as being time-limited, most designers with long-range plans for their work will build for 6 DoF first and foremost, and maybe develop a 3 DoF version if the basic concept and funding stream allows.

Being a general authoring tool rather than a specific title, Google's VR Blocks fit squarely (sorry) in the Do 6 DoF First category.