We'd known that Valve had been planning a big presence at next month's Game Developers Conference, but today the company confirmed exactly what it's bringing: the final Steam Controller for its forthcoming Steam Machines and its "previously-unannounced SteamVR hardware system."

According to a release from the company, Valve also plans to show "new living room devices" at GDC, which sounds like it's different from its Steam Machines initiative.

Earlier this year, reports surfaced that Valve had finalized its delayed Steam Controller and planned to unveil it at GDC 2015. The company later confirmed it would show the latest on Steam Machines, the living room PCs coming from third parties and Valve.

On the Steam Universe page, Valve says it is "actively seeking VR content creators" to work with SteamVR hardware. The company is giving demos of its VR system dev kit to developers and publishers during the week of GDC.

Valve has long worked to develop its own virtual reality solution, and has partnered with VR pioneer Oculus to "drive PC VR forward." The developer launched an experimental VR mode for Steam last year in beta and has worked to port its games, like Team Fortress 2, to support virtual reality displays.

Steam Machines were announced in 2013 alongside Valve's Linux-based operating system SteamOS and the Steam Controller. Originally slated to launch in 2014, the living room PC hardware was delayed while Valve tweaked its controller. A dozen hardware partners unveiled the earliest machines based on Valve's Steam Machines program at CES last year.

GDC 2015 takes place March 4-6 at the Moscone Center in San Francisco.