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. 14 July 2016 - Add a guideAtomizerDisintegrate 15 soldiers by throwing them into a Combine ball field. 14 July 2016 - Add a guideGiant KillerSurvive the rooftop strider battle in the ruins of City 17. 14 July 2016 - Add a guideLambda LocatorFind all lambda caches in Half-Life 2. 14 July 2016 - Add a guideFight the PowerShut down the supression device by disabling its generators. 14 July 2016 - Add a guideCounter-SniperKill all of the snipers in City 17. 14 July 2016 - Add a guidePlaza DefenderSurvive the generator plaza standoff in chapter Anticitizen One. 14 July 2016 - Add a guideRadiation Levels DetectedGet through the toxic tunnel under City 17 in Half-Life 2. 13 July 2016 - Add a guideFollow FreemanGain command of a squad of rebels in the uprising. 13 July 2016 - Add a guideWarden FreemanSurvive the second turret standoff in Nova Prospekt. 13 July 2016 - Add a guideHack Attack!Kill five enemies with a Manhack. 13 July 2016 - Add a guideOne Man ArmyDestroy six gunships in Half-Life 2. 13 July 2016 - Add a guideBug HuntUse the Antlions to kill 50 enemies. 13 July 2016 - Add a guideKeep Off the Sand!Cross the antlion beach in chapter Sandtraps without touching the sand. 13 July 2016 - Add a guideTargeted AdvertisingPin a soldier to the billboard in the chapter Highway 17. 12 July 2016 - Add a guideOSHA ViolationKill 3 enemies using the crane. 12 July 2016 - Add a guideWhere Cubbage Fears to TreadDefend Little Odessa from the Gunship attack. 12 July 2016 - Add a guideZombie ChopperPlay through Ravenholm using only the Gravity Gun. 12 July 2016 - Add a guideHallowed GroundEscort Gregori safely through the church cemetery. 12 July 2016 - Add a guideFlushedKill an enemy with a toilet. 12 July 2016 - Add a guideTwo PointsUse Dog's ball to make a basket in the scrapyard. 12 July 2016 - Add a guideBlast from the PastFind the HEV Suit Charger faceplate in Eli's scrapyard. 12 July 2016 - Add a guideZero-Point EnergyGet the Gravity Gun in Black Mesa East. 12 July 2016 - Add a guideVorticoughDiscover the hidden singing vortigaunt cave in chapter Water Hazard. 12 July 2016 - Add a guideRevenge!Destroy the Hunter-Chopper. 12 July 2016 - Add a guideHeavy WeaponsGet the airboat's mounted gun. 12 July 2016 - Add a guideAnchor's Aweigh!Get the airboat. 12 July 2016 - Add a guideBarnacle BowlingKill five barnacles with one explosive barrel. 12 July 2016 - Add a guideTrusty HardwareGet the crowbar. 12 July 2016 - Add a guideWhat cat?Break the mini-teleporter in Kleiner's Lab. 12 July 2016 - Add a guideMalcontentEscape the apartment block raid. 12 July 2016 - Add a guideSubmissivePut the can in the trash. 12 July 2016 - 1 guideDefiantHit the trashcan cop with the can. 12 July 2016 - 1 guide