Portal 2 DLC #1 Is Completely Free

Via a press release by Valve, the first game add-on for Portal 2, aptly titled Portal 2 DLC #1, will be free of charge for PC, Mac, Xbox 360, and PS3. It will "offer new test chambers for players, leaderboards, challenge mode for single and multiplayer modes, and more".

No release date has been given for Portal 2 DLC #1.