Serious Sam HD: The First Encounter achievements
1,525
(350)

Serious Sam HD: The First Encounter

3.6 from 51 votes

There are a maximum of 35 Serious Sam HD: The First Encounter achievements worth 1,525

1,838 tracked gamers have this game, 36 have completed it (1.96%)

Achievement Details

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

Serious Co-op49

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

  • Unlocked by 75 tracked gamers (4% - TSA Ratio = 4.94) 1,838  
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