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Deep within the facilities at Aperture Science lies a secret research laboratory that was locked and closed off... until it was found by robots. You will find and use a Time Machine to create a twin of yourself from the past to help you solve the puzzles. The past self accurately repeats all of the player's actions, creating a unique twist on familiar Portal game mechanics. It features: new and unique gameplay, custom content (models, textures), new design, convenient and simple control in the form of a new datapad item, and different ways to think about and solve puzzles. |
