Serious Sam HD: The First Encounter achievements
1,589
(350)

Serious Sam HD: The First Encounter

3.5 from 41 votes

There are a maximum of 35 Serious Sam HD: The First Encounter achievements worth 1,589

1,428 tracked gamers have this game, 26 have completed it (1.82%)

Achievement Details

Serious Co-op in Serious Sam HD: The First Encounter

Serious Co-op51

Complete a co-op game on serious difficulty and extra enemy strength on 400%.

  • Unlocked by 54 tracked gamers (4% - TSA Ratio = 5.11) 1,428  
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