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The most innovative game of 2007, blending puzzle, action and adventure gaming!  Portal is designed to change the way players approach, manipulate and surmise the possibilities in a given environment; similar to how Half-Life 2’s Gravity Gun innovated new ways to leverage an object in any given situation. Players must solve physical puzzles and challenges by opening portals to maneuvering objects, and themselves, through space.

FEATURES

• Award-winning, innovative gameplay
• The first first-person puzzle action adventure game
• Two bonus games introduce new play challenges
• Support for level editing and mod creation – build your own Portal puzzles
• Hours of single player gaming
• Makes you feel smart!