Serious Sam: Siberian Mayhem
Windows 10
- 8,783 Achievements Earned
- 990 Players Tracked
- 49 Total Achievements
- 11,978 Obtainable EXP
- 1,000 Gamerscore
- 30 100% Club
Beat the final boss in Singleplayer on Serious difficulty without loading mid-battle savegames
50
5.86%
Very Rare - 382.00 EXP
You have not earned this achievement yet
Log in to view progress