Portal achievements
280
(150)

Portal

4.5 from 407 votes

There are a maximum of 15 Portal achievements worth 280

9,092 tracked gamers have this game, 866 have completed it (9.52%)

Achievement Details

Rocket Science in Portal

Rocket Science31

Earn silver medals on all Portal challenges.

  • Unlocked by 957 tracked gamers (10% - TSA Ratio = 3.09) 9,177  
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