Sign Up / Log In

Portal 2

Xbox 360
  • 1,505,261 Achievements Earned
  • 77,230 Players Tracked
  • 50 Total Achievements
  • 7,313 Obtainable EXP
  • 1,000 Gamerscore
  • 4,824 100% Club
You Saved Science

Complete all test chambers in all courses of co-op

100
29.79% Rare - 134.00 EXP

You have not earned this achievement yet