In one of their surprise weekend updates, GameSpot has posted a preview of the new Doom game in development at id Software, which they cautiously refer to as "Doom III (tentative title)." Admitting that the article doesn't contain any new information, it aims to offer "a convenient collection of all the information that's been released by id Software and John Carmack to date," and comments on the two demo reels that have been shown at MacWorld Japan and QuakeCon, the power of the new graphics engine, and the use of its lighting model and a new sound engine to create the game's atmosphere.