Portal 2 achievements
915
(510)

Portal 2

4.6 from 346 votes

There are a maximum of 51 Portal 2 achievements worth 915

8,522 tracked gamers have this game, 520 have completed it (6.10%)

Achievement Details

Party of Three in Portal 2

Party of Three27

Find the hidden companion cube in co-op test chamber

  • Unlocked by 1,162 tracked gamers (14% - TSA Ratio = 2.70) 8,522  
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