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Valve has revealed that the free DLC for Portal 2, announced back in April, will be released in mid-September – just about sticking to the company’s announced summer release date.
According to Valve’s Doug Lombardi, speaking to Kotaku, that’s “still technically summer”.
The content will include new test chambers and a challenge mode which supports both single-player and co-op modes. The pack will also include leaderboard support.
