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Waking up in a seemingly empty laboratory, the player is made to complete various physics-based puzzle challenges through numerous test chambers in order to test out the new Aperture Science Handheld Portal Device, without an explanation as to how, why or by whom.
ู ุนููู ุงุช ุฅุถุงููุฉ
| Developers | Valve Corporation |
|---|---|
| Publishers | EA, Electronic Arts, Microsoft Game Studios, Valve Corporation |
| Genres | Adventure, FPS, Platformer |
| Platform | Steam |
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