Serious Sam HD: The First Encounter achievements
1,586
(350)

Serious Sam HD: The First Encounter

3.5 from 42 votes

There are a maximum of 35 Serious Sam HD: The First Encounter achievements worth 1,586

1,533 tracked gamers have this game, 27 have completed it (1.76%)

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 58 tracked gamers (4% - TSA Ratio = 5.12) 1,533  
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