Seems like Valve's Steam Controller has been evolving since the minute they first showed it to us. The latest version adds more conventional face buttons along with the big, already-iconic touchpads. It's being put through its paces at GDC this week. Let's see how this puppy performs, shall we?

The video above comes from tech/cool stuff blog Tested and features Valve's Scott Dalton running down the functionality of and changes to the Steam Controller. Dalton says that the current prototypes have been 3D-printed and built by hand. They also feature customizable haptics options so players can get the feedback that works best for them. It's a fairly deep dive into a gamepad unlike any other, so if you're curious about what Valve's trying to accomplish, do watch the whole thing.

[Via Reddit]