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The Orange Box

Xbox 360
  • 2,405,113 Achievements Earned
  • 83,656 Players Tracked
  • 99 Total Achievements
  • 14,309 Obtainable EXP
  • 1,000 Gamerscore
  • 1,843 100% Club
Basic Science

Earn bronze medals on all Portal challenges.

10
3.24% Ultra Rare - 809.00 EXP

You have not earned this achievement yet