Portal | Ep. 1: Test Chambers | Full Playthrough

Watch a full playthrough of Portal, the critically acclaimed first-person puzzle game from Valve. Solve mind-bending puzzles using the Portal Gun to teleport yourself through space and time. Join Chell as she escapes the Aperture Science Laboratories and learns the truth about her past. Follow along as we wind our way through the crazy tests and pathways and seek out the master of the facility!

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