Portal achievements
300
(150)

Portal

4.5 from 272 votes

There are a maximum of 15 Portal achievements worth 300

6,711 tracked gamers have this game, 509 have completed it (7.58%)

Achievement Details

Rocket Science in Portal

Rocket Science34

Earn silver medals on all Portal challenges.

  • Unlocked by 573 tracked gamers (9% - TSA Ratio = 3.41) 6,711  
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