Valve released the Steam Music Player for all Steam users earlier this week, and the company marked the launch with a sale on six different titles in the Half-Life universe and their original soundtracks.
Steam Music, which Valve originally announced this past February, allows people to point Steam to music on their computer and listen to those songs while they're playing games. And for Steam games that come with soundtracks, those albums will show up in the Steam Music library. Valve brought Steam Music out of beta and added the feature for all Steam users with the Sept. 24 update to the Steam client.
As part of the Steam Music launch, the following six Valve games are on sale for 75 percent off: Half-Life, Half-Life 2, Half-Life 2: Episode One, Half-Life 2: Episode Two, Portal and Portal 2. And the soundtracks for those titles — as well as the one for Free to Play, the Valve-produced Dota 2 documentary — are all available free. The offer will expire Oct. 1 at 10 a.m. PT.