Portal is a first-person puzzle game. Players must solve physical challenges by opening portals to maneuver objects, and themselves, through the enigmatic Aperture Science Laboratories.
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Test Chamber 9 but the GLaDOS messes up and something crashes.
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ValveEngine
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Portal
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For some reason when I launch the map, it turns on mat_fullbright and no matter how many times I set it back to 0 in the console, it always immediately turns back on.
strange. i think i had this issue when i tried playing it again too, but i've lost the original file to this sadly. apologies.