Half-Life 2: Update Achievements Here is the full list of all 33 Half-Life 2: Update achievements. It takes around 8-10 hours to unlock all of the achievements on Windows.Filter Achievement View View Image viewList view Sort by TrueSteamAchievement desc TrueSteamAchievement asc Achievement name desc Achievement name asc TSA Ratio desc TSA Ratio asc Gamers desc Gamers asc Steam order Date won desc Date won asc Flag Filter All None 33 Offline Mode 33 Single Player 15 Main Storyline 2 Collectable 1 Missable 3 Cumulative + Link flagsOR joinAND join Achievements without these flags What are achievement flags? Click to find outApply DefiantHit the trashcan cop with the can. 1 guideGiant KillerSurvive the rooftop strider battle in the ruins of City 17. Hallowed GroundEscort Gregori safely through the church cemetery. Keep Off the Sand!Cross the antlion beach in chapter Sandtraps without touching the sand. Singularity CollapseDestroy the Citadel's reactore core. Plaza DefenderSurvive the generator plaza standoff in chapter Anticitizen One. Zombie ChopperPlay through Ravenholm using only the Gravity Gun. Fight the PowerShut down the supression device by disabling its generators. Radiation Levels DetectedGet through the toxic tunnel under City 17 in Half-Life 2. Warden FreemanSurvive the second turret standoff in Nova Prospekt. What cat?Break the mini-teleporter in Kleiner's Lab. AtomizerDisintegrate 15 soldiers by throwing them into a Combine ball field. MalcontentEscape the apartment block raid. Lambda LocatorFind all lambda caches in Half-Life 2. Blast from the PastFind the HEV Suit Charger faceplate in Eli's scrapyard. VorticoughDiscover the hidden singing vortigaunt cave in chapter Water Hazard. Follow FreemanGain command of a squad of rebels in the uprising. Anchor's Aweigh!Get the airboat. Heavy WeaponsGet the airboat's mounted gun. Trusty HardwareGet the crowbar. Zero-Point EnergyGet the Gravity Gun in Black Mesa East. Counter-SniperKill all of the snipers in City 17. Barnacle BowlingKill five barnacles with one explosive barrel. Revenge!Destroy the Hunter-Chopper. Bug HuntUse the Antlions to kill 50 enemies. OSHA ViolationKill 3 enemies using the crane. FlushedKill an enemy with a toilet. Where Cubbage Fears to TreadDefend Little Odessa from the Gunship attack. Two PointsUse Dog's ball to make a basket in the scrapyard. Targeted AdvertisingPin a soldier to the billboard in the chapter Highway 17. SubmissivePut the can in the trash. 1 guideOne Man ArmyDestroy six gunships in Half-Life 2. Hack Attack!Kill five enemies with a Manhack.