[via]

After a very long and anticipated wait, the critically acclaimed Portal 2 will finally have its first piece of DLC coming out—the best part is that it’s free!

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Called “Peer Review,” the new content contains an expansion for the cooperative campaign that stared the lovable Atlas and P-Body.

“You and a friend will continue the story of loyal bots P-Body and Atlas as you puzzle your way through a mysterious new co-op test track and once again match wits with GLaDOS.”

There will also be challenge maps available for both single player and coop play with online leaderboard support. Science is finally going to be fun again!

[Kotaku]