Steam (content delivery)

Steam is a digital distribution, digital rights management, multiplayer and communications platform developed by Valve Corporation. It is used to digitally distribute and manage games ranging from first-person shooters and RPGs to racing games and cross-genre independent titles. Among its clients are Take-Two Interactive, Eidos Interactive, Introversion Software, Strategy First, PopCap Games, Capcom and most recently, id Software.

As of May 24, 2007 over 150 PC games are available on Steam, and there are approximately 13 million active users.