Valve developers are working on VR games internally, per a question asked by a fan during founder Gabe Newell’s Reddit AMA (via UploadVR).
Newell made waves earlier during the AMA when he responded “Yep” to the possibility of future Half-Life and Portal games.
“The knuckles controller is being designed at the same time as we’re designing our own VR games.”
Thus far, Valve’s catalog of VR games consists only of The Lab; titles such as Destinations and DOTA 2’s viewing mode are not “games” in the denotative definition of the word.