Portal achievements
307
(150)

Portal

4.5 from 225 votes

There are a maximum of 15 Portal achievements worth 307

5,838 tracked gamers have this game, 412 have completed it (7.06%)

Achievement Details

Rocket Science in Portal

Rocket Science35

Earn silver medals on all Portal challenges.

  • Unlocked by 476 tracked gamers (8% - TSA Ratio = 3.50) 5,838  
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