Half-Life 2 achievements

12.79%
Lambda Locator
Find all lambda caches in Half-Life 2.
17.48%
Keep Off the Sand!
Cross the antlion beach in chapter Sandtraps without touching the sand.
20.29%
Zombie Chopper
Play through Ravenholm using only the Gravity Gun.
20.76%
Hack Attack!
Kill five enemies with a Manhack.
21.31%
Flushed
Kill an enemy with a toilet.
23.48%
Vorticough
Discover the hidden singing vortigaunt cave in chapter Water Hazard.
23.92%
Counter-Sniper
Kill all of the snipers in City 17.
24.85%
Two Points
Use DOG's ball to make a basket in Eli's scrapyard.
29.45%
Atomizer
Disintegrate 15 soldiers by throwing them into a Combine ball field.
31.76%
Targetted Advertising
Pin a soldier to the billboard in chapter Highway 17.
34.46%
What cat?
Break the mini-teleporter in Kleiner's lab.
39.14%
OSHA Violation
Kill 3 enemies using the crane.