Take a good hard look at Valves Steam Machine, because its the last time youll see it. Er, something like that. Only 300 of the metal beast above will ship to beta testers, and then Valve says its cutting off its own supply of Steam Machines. Were really building this as a test platform, and there are many machines that are gonna be made by third-parties. Theyre the ones that will be available commercially in 2014, Valve designer Greg Coomer told Engadget.