Valve has announced several hardware initiatives at GDC, including the Steam Controller and Steam Machines. The company will also show off a new hardware system called SteamVR. It’s not clear if there will be an announcement at this year’s event. Valve is inviting developers and publishers to sign up for demos of SteamVR at the event. It may be the company’s own VR headset, but it’s unknown whether it will be revealed at GD. The Steam Controller will be the last version of the Steam controller.”]