^mac This game has a Mac OS port, but is not yet available on Steam ^linux This game has a Linux port, but is not yet available on Steam.
This is a list of video games available on, a digital distribution service and online gaming community operated. Steam was launched in 2003, initially with Valve's own titles. The network gained more widespread use after the release of in 2004, which was intrinsically integrated into the system.
Steam has since expanded as other major publishers, including, and began distributing a number of their titles over the system. A substantial number of have also been released, along with several for Valve's own games. A list of current and upcoming titles is also present on the service. In early 2008, Valve began a program labeled, offering client developers the opportunity to use Steam's distribution tools to their fullest extent in their products. Steamworks incorporates several additional features, such as, and functions as well as options. Some titles may make use of other distribution/community services in addition to Steam's.