According to a recent post on reddit.com in September 2012 Bethesda has added a number of internal projects in the Steam catalog (Content Description Record). Including one called "ID Software Beta" in a package. Including the long overdue idTech 5 Software Development Kit, also known as id Studio, Doom 4, and a mysterious app called Project Ranger - suspected Quake 5.Ranger is the main character of the 1996 original Quake.Now its confirmed that Doom 3 BFG and Doom 4 for pc will be linked over steam.original german news:links:CDR: ID Software Beta - http://cdr.thebronasium.com/sub/2813 CDR: Doom 4 - http://cdr.thebronasium.com/app/206630 CDR: Project Ranger - http://cdr.thebronasium.com/app/205040