Id Software has developed id Tech 5 with multi-platform capabilities in mind with the first game based on that engine, Rage, having been announced for PC, Macintosh, Xbox 360 and the PS3. It has been known for some time that the renderer was fairly API agnostic. From previous reports we know that Rage will use D3D on the xbox platform, LibGCM on the PS3 and OpenGL on the Mac.