The first wave of Valve's Steam Machine gaming PCs are now on sale. The company just announced the official launch of Steam Machines from a handful of manufacturers, along with the unusual Steam Controller and the Steam Link home streaming box. Right now, Valve is advertising three Steam Machines from Alienware, Zotac, and Cyberpower; they range from $499 to $1,499. The Steam Controller and Steam Link both sell for $49 apiece.
The Steam Machine concept has been years in the making, and it's seen some delays and false starts along the way. The confusion is partly because "Steam Machine" is more a label for console-like gaming PCs than a discrete product. Along with the controller, Steam Machines are largely defined by Steam OS, a Linux-based operating system that any manufacturer can adopt, whether it's making a super-cheap machine or a top-of-the-line gaming powerhouse. Preorders finally opened this summer, with a limited number of customers getting their devices in mid-October before the official release.
Polygon took a look at the current lineup a month ago; you can read the (mixed) first impressions right here. The new devices — along with games they support — are all collected on Valve's Steam Machine page.