There are a maximum of 33 Half-Life 2 achievements worth 503
6,255 tracked gamers have this game, 1,162 have completed it (18.58%)
Keep Off the Sand!21
Cross the antlion beach in chapter Sandtraps without touching the sand.
Unlocked by 1,474 tracked gamers (24% - TSA Ratio = 2.05)
Do you have a question about this achievement? Please post it in the Half-Life 2 Forum