Upcoming Valve games Dota 2 and Counter-Strike: Global Offensive will support the Razer Hydra PC motion controller.

Motion gaming support has been added to over 250 of the most popular games on Steam, including Left 4 Dead 2, Half-Life 2 and Team Fortress 2, via creator Sixense's MotionCreatorTM 2.0 software.

Steam users will get motion control updates for current and future titles automatically from now on. A new in-game overlay lets you view control maps for the Razer Hydra as you play.

The Razer Hydra uses an electromagnetic field, via a base station, to track hand movements as you hold two motion-sensing controllers, both complete with thumb sticks.

We first heard of the Razer Hydra Valve love affair early last year, when we discovered those who owned the Razer Hydra were entitled to exclusive Portal 2 content.