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 Won first then 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 AllWonNot wonSingularity CollapseDestroy the Citadel's reactore core. 30 March 2015 - Add a guideAtomizerDisintegrate 15 soldiers by throwing them into a Combine ball field. 30 March 2015 - Add a guideGiant KillerSurvive the rooftop strider battle in the ruins of City 17. 30 March 2015 - Add a guideLambda LocatorFind all lambda caches in Half-Life 2. 30 March 2015 - Add a guideFight the PowerShut down the supression device by disabling its generators. 30 March 2015 - Add a guideCounter-SniperKill all of the snipers in City 17. 30 March 2015 - Add a guidePlaza DefenderSurvive the generator plaza standoff in chapter Anticitizen One. 30 March 2015 - Add a guideFlushedKill an enemy with a toilet. 30 March 2015 - Add a guideRadiation Levels DetectedGet through the toxic tunnel under City 17 in Half-Life 2. 30 March 2015 - Add a guideFollow FreemanGain command of a squad of rebels in the uprising. 30 March 2015 - Add a guideWarden FreemanSurvive the second turret standoff in Nova Prospekt. 30 March 2015 - Add a guideHack Attack!Kill five enemies with a Manhack. 30 March 2015 - Add a guideOne Man ArmyDestroy six gunships in Half-Life 2. 30 March 2015 - Add a guideBug HuntUse the Antlions to kill 50 enemies. 30 March 2015 - Add a guideKeep Off the Sand!Cross the antlion beach in chapter Sandtraps without touching the sand. 30 March 2015 - Add a guideTargeted AdvertisingPin a soldier to the billboard in the chapter Highway 17. 29 March 2015 - Add a guideOSHA ViolationKill 3 enemies using the crane. 29 March 2015 - Add a guideWhere Cubbage Fears to TreadDefend Little Odessa from the Gunship attack. 29 March 2015 - Add a guideZombie ChopperPlay through Ravenholm using only the Gravity Gun. 29 March 2015 - Add a guideHallowed GroundEscort Gregori safely through the church cemetery. 29 March 2015 - Add a guideTwo PointsUse Dog's ball to make a basket in the scrapyard. 29 March 2015 - Add a guideBlast from the PastFind the HEV Suit Charger faceplate in Eli's scrapyard. 29 March 2015 - Add a guideZero-Point EnergyGet the Gravity Gun in Black Mesa East. 29 March 2015 - Add a guideVorticoughDiscover the hidden singing vortigaunt cave in chapter Water Hazard. 29 March 2015 - Add a guideRevenge!Destroy the Hunter-Chopper. 29 March 2015 - Add a guideHeavy WeaponsGet the airboat's mounted gun. 29 March 2015 - Add a guideAnchor's Aweigh!Get the airboat. 27 March 2015 - Add a guideBarnacle BowlingKill five barnacles with one explosive barrel. 27 March 2015 - Add a guideTrusty HardwareGet the crowbar. 27 March 2015 - Add a guideWhat cat?Break the mini-teleporter in Kleiner's Lab. 27 March 2015 - Add a guideMalcontentEscape the apartment block raid. 27 March 2015 - Add a guideDefiantHit the trashcan cop with the can. 27 March 2015 - 1 guideSubmissivePut the can in the trash. 27 March 2015 - 1 guide