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

Serious Sam HD: The First Encounter

3.6 from 44 votes

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

1,598 tracked gamers have this game, 28 have completed it (1.75%)

Achievement Details

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

Serious Co-op52

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

  • Unlocked by 60 tracked gamers (4% - TSA Ratio = 5.15) 1,598  
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