Portal 2 DLC #1 has more test chambers, leaderboards
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Valve has announced the first game add-on for Portal 2, which is currently in development and targeted for a summer release.
The first DLC will include new test chambers, leaderboards, a challenge mode for single and multiplayer modes, and more.
Best of all, the DLC will be free on PC, Mac, Xbox 360, and PS3.
That's all that was mentioned in the press release, so expect to hear more about it soon.