As you may know, Valve has big plans regarding Linux gaming and is engaged in ambitious projects: SteamOS, a Linux based system for gaming, Steam Machine, gaming consoles that runs SteamOS and Steam Controller, a gaming controller for SteamOS and Steam Machine.

A new video displaying the Steam Controller in action has been revealed, providing a demo of how the device works with games like The Witcher 3, Cities: Skylines or Wolfenstein: The Old Blood.
The video can be watched below.
While different versions of the Steam Controller have been already released, the final version will become available starting with Novemebr, this year.
If you ask me, the Steam Controller is worth buying, like any other controller that can play Counter Strike.