Portal 2 Build 17069914

Portal 2 builds on the award-winning formula of innovative gameplay, engaging story and original music that made the first Portal a phenomenon. In the single-player campaign you’ll meet a host of dynamic new characters, encounter fresh puzzle elements and face a much larger series of devious test chambers. Explore never-before-seen areas of the Aperture Science Labs and cross paths once again with GLaDOS, the occasionally murderous AI who guided you through the original game.

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The two-player cooperative mode offers its own entirely separate campaign, complete with a unique storyline, dedicated test chambers and two brand-new robot protagonists. This mode challenges you and a friend not only to act cooperatively but to think cooperatively, reimagining everything you thought you knew about portals.

Key features:
• Extensive single-player: next-generation gameplay paired with a wildly engrossing narrative
• Complete two-person co-op: a standalone multiplayer campaign with its own story, characters and puzzles
• Advanced physics: an expanded toolkit of mechanics creates a broader range of challenges without simply raising the difficulty
• Original music: a brand-new soundtrack that complements the game’s humor and tension
• Massive sequel pedigree: the original Portal earned over 70 industry awards and was named 2007’s Game of the Year by more than 30 publications
• Editing tools: a full suite of level-creation tools included, letting players design and share their own test chambers