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Serious Sam: Siberian Mayhem

Windows 10
  • 8,477 Achievements Earned
  • 968 Players Tracked
  • 49 Total Achievements
  • 11,996 Obtainable EXP
  • 1,000 Gamerscore
  • 29 100% Club
Superior Species

Get any medal on Kleer Fortress survival level

15
4.75% Ultra Rare - 459.00 EXP

You have not earned this achievement yet