The Steam Controller

The Steam Controller launches on November 10. Priced at $49.99, it's built to work with and adapt to all kinds of PC games, such as platformers, shooters, and RTS games. The controller will be available for purchase via Steam and physical retailers, including GameStop and other select stores. 

While the Steam controller is made to function with the various Steam Machines, it's also compatible with standard PCs. Check out our in-depth look at the Steam controller and how it works (below). 
Launching alongside the controller is Valve's Steam Machine, a line of small gaming PCs with Steam OS pre-installed.