Serious Sam: Siberian Mayhem
Windows
- 15,913 Achievements Earned
- 1,440 Players Tracked
- 49 Total Achievements
- 7,400 Obtainable EXP
- 1,000 Gamerscore
- 108 100% Club
Complete Siberian Mayhem on Serious difficulty in Singleplayer
55
9.65%
Very Rare - 241.00 EXP
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