01Achievements
Every Portal achievement, ordered by how few players in the world have unlocked it.
5 of 15 entries
Basic ScienceEarn bronze medals on all Portal challenges.2.8%Very rare
Rocket ScienceEarn silver medals on all Portal challenges.2.8%Very rare
Aperture ScienceEarn gold medals on all Portal challenges.2.8%Very rare
Camera ShyDetach security cameras from the walls.4.1%Very rare
Transmission Received..?4.4%Very rare
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