Garry's Mod achievements
1,143
(290)

Garry's Mod

3.8 from 181 votes

There are a maximum of 29 Garry's Mod achievements (15 without DLC) worth 1,143

6,716 tracked gamers have this game, 55 have completed it (0.82%)

Achievement Details

Marathon in Garry's Mod

Marathon31

Play on the same server & map for 8 hours

  • Unlocked by 682 tracked gamers (10% - TSA Ratio = 3.13) 6,716  
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