"The Steam controller features dual circular trackpads on each side of the controller. These can act both like a mouse or like thumbsticks featured in more traditional controllers. The gamepad allows RTS, 4X, point-and-click and other cursor-driven games to be played from a sofa. The trackpads...
This isn't a TTT map or a Half-Life 2: Episode 3 map. In fact, this is one of the maps created by Valve for the beta version of Half-Life 2 before it was leaked to the public. After the leak, Valve remade most of the stuff from the beta and as a result, a lot of stuff in the retail version looks...