Party of Three Achievement - Portal 2 - Exophase.com

Portal 2

Xbox 360

1,504,398 Achievements Earned
77,183 Players Tracked
50 Total Achievements
7,313 Obtainable EXP
1,000 Gamerscore
4,822 100% Club

Find the hidden companion cube in co-op test chamber

25

15.45% Rare - 258.00 EXP

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