Valve recently announced the second game add-on for Portal 2 is in development and targeted for release early next year. The major update will feature an easy-to-use in-game map editor that will let users design, build and share their own single-player and co-op test chambers with the community, who will be able to view, play and vote on them with a simple click.

A hilariously mind-bending adventure that challenges you to use wits over weaponry in a funhouse of diabolical science, Portal 2 features expansive single and cooperative multiplayer game modes. For more information on Portal 2 and its downloadable content, please visit http://www.thinkwithportals.com.

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