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 wonHeavy WeaponsGet the airboat's mounted gun. 12 July 2024 - Add a guideSingularity CollapseDestroy the Citadel's reactore core. 12 July 2024 - Add a guideAtomizerDisintegrate 15 soldiers by throwing them into a Combine ball field. 12 July 2024 - Add a guideGiant KillerSurvive the rooftop strider battle in the ruins of City 17. 11 July 2024 - Add a guideLambda LocatorFind all lambda caches in Half-Life 2. 11 July 2024 - Add a guideFight the PowerShut down the supression device by disabling its generators. 11 July 2024 - Add a guideCounter-SniperKill all of the snipers in City 17. 11 July 2024 - Add a guidePlaza DefenderSurvive the generator plaza standoff in chapter Anticitizen One. 11 July 2024 - Add a guideRadiation Levels DetectedGet through the toxic tunnel under City 17 in Half-Life 2. 11 July 2024 - Add a guideFollow FreemanGain command of a squad of rebels in the uprising. 11 July 2024 - Add a guideWarden FreemanSurvive the second turret standoff in Nova Prospekt. 11 July 2024 - Add a guideHack Attack!Kill five enemies with a Manhack. 11 July 2024 - Add a guideFlushedKill an enemy with a toilet. 11 July 2024 - Add a guideOne Man ArmyDestroy six gunships in Half-Life 2. 11 July 2024 - Add a guideBug HuntUse the Antlions to kill 50 enemies. 11 July 2024 - Add a guideKeep Off the Sand!Cross the antlion beach in chapter Sandtraps without touching the sand. 11 July 2024 - Add a guideTargeted AdvertisingPin a soldier to the billboard in the chapter Highway 17. 11 July 2024 - Add a guideOSHA ViolationKill 3 enemies using the crane. 11 July 2024 - Add a guideWhere Cubbage Fears to TreadDefend Little Odessa from the Gunship attack. 11 July 2024 - Add a guideZombie ChopperPlay through Ravenholm using only the Gravity Gun. 11 July 2024 - Add a guideHallowed GroundEscort Gregori safely through the church cemetery. 11 July 2024 - Add a guideTwo PointsUse Dog's ball to make a basket in the scrapyard. 11 July 2024 - Add a guideBlast from the PastFind the HEV Suit Charger faceplate in Eli's scrapyard. 11 July 2024 - Add a guideZero-Point EnergyGet the Gravity Gun in Black Mesa East. 11 July 2024 - Add a guideVorticoughDiscover the hidden singing vortigaunt cave in chapter Water Hazard. 11 July 2024 - Add a guideRevenge!Destroy the Hunter-Chopper. 11 July 2024 - Add a guideAnchor's Aweigh!Get the airboat. 10 July 2024 - Add a guideBarnacle BowlingKill five barnacles with one explosive barrel. 10 July 2024 - Add a guideTrusty HardwareGet the crowbar. 10 July 2024 - Add a guideWhat cat?Break the mini-teleporter in Kleiner's Lab. 10 July 2024 - Add a guideMalcontentEscape the apartment block raid. 10 July 2024 - Add a guideDefiantHit the trashcan cop with the can. 10 July 2024 - 1 guideSubmissivePut the can in the trash. 10 July 2024 - 1 guide