Apparently the initiative "Steam Machine" Valve has not had the expected success. In fact, according to an Ars Technica reports, have been less than 500,000 units sold sincelaunch seven months ago. The figure comes from the recent announcement on the sale of more than 500,000 units of Steam Controller and, since the controllers were also counted present bundled with every Steam Machine, it must be assumed that the number of the latter is decidedly minore.Pensati as alternatives the classic home console, the Steam Machine are simply customized PCs that run on Steam OS. The latter has been a major deterrent insince it has proved less efficient and compatible with the classic Windows, cutting out, as a result, a large share of the Steam library. Release Date: September 12, 2003 from the PC – Mac in March 2008 – April 2011 PS3