Half-Life 2 Achievements Full list of all 69 Half-Life 2 achievements. It takes around 15-20 hours to unlock all of the achievements in the base game on Windows.The base game contains 33 achievements, and there is 1 DLC pack containing 36 achievements.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 DLC Packs Group DLC packs together in list DLC Filter AllOwnedNone Flag Filter All None 69 Offline Mode 69 Single Player 26 Main Storyline 9 Collectable 24 Missable 7 Cumulative + Link flagsOR joinAND join Achievements without these flags What are achievement flags? Click to find outApply AllWonNot won Base Base Game (Excludes DLC) 482 33 4.632,3566,281 (19%)15-20h Keep Off the Sand!Cross the antlion beach in chapter Sandtraps without touching the sand. 18 November 2016 - 1 guideCounter-SniperKill all of the snipers in City 17. 18 November 2016 - 1 guideFlushedKill an enemy with a toilet. 18 November 2016 - 1 guideAtomizerDisintegrate 15 soldiers by throwing them into a Combine ball field. 18 November 2016 - 1 guideTargetted AdvertisingPin a soldier to the billboard in chapter Highway 17. 18 November 2016 - 1 guideLambda LocatorFind all lambda caches in Half-Life 2. 18 November 2016 - 3 guidesVorticoughDiscover the hidden singing vortigaunt cave in chapter Water Hazard. 18 November 2016 - 1 guideZombie ChopperPlay through Ravenholm using only the Gravity Gun. 18 November 2016 - 1 guideDefiant 18 November 2016 - 2 guidesSingularity Collapse 24 June 2013 - Add a guideGiant KillerSurvive the rooftop strider battle in the ruins of City 17. 24 June 2013 - Add a guideOne Man ArmyDestroy six gunships in Half-Life 2. 24 June 2013 - Add a guideFight the PowerShut down the supression device by disabling its generators. 24 June 2013 - Add a guidePlaza DefenderSurvive the generator plaza standoff in chapter Anticitizen One. 23 June 2013 - Add a guideRadiation Levels DetectedGet through the toxic tunnel under City 17 in Half-Life 2. 23 June 2013 - Add a guideFollow FreemanGain command of a squad of rebels in the uprising. 23 June 2013 - 1 guideWhat cat?Break the mini-teleporter in Kleiner's lab. 23 June 2013 - 1 guideWarden FreemanSurvive the second turret standoff in Nova Prospekt. 23 June 2013 - Add a guideHack Attack!Kill five enemies with a Manhack. 22 June 2013 - 1 guideBug HuntUse the antlions to kill 50 enemies. 22 June 2013 - Add a guideOSHA ViolationKill 3 enemies using the crane. 21 June 2013 - 1 guideWhere Cubbage Fears to Tread 21 June 2013 - 1 guideHallowed Ground 20 June 2013 - 1 guideTwo PointsUse DOG's ball to make a basket in Eli's scrapyard. 20 June 2013 - 1 guideZero-Point EnergyGet the Gravity Gun in Black Mesa East. 20 June 2013 - 1 guideBlast from the PastFind the HEV Suit Charger faceplate in Eli's scrapyard. 20 June 2013 - 1 guideRevenge!Destroy the hunter-chopper in Half-Life 2. 20 June 2013 - 1 guideHeavy WeaponsGet the airboat's mounted gun. 20 June 2013 - 1 guideAnchor's Aweigh!Get the airboat. 09 June 2013 - 1 guideBarnacle BowlingKill five barnacles with one barrel. 09 June 2013 - 1 guideTrusty HardwareGet the crowbar. 09 June 2013 - 1 guideMalcontentEscape the apartment block raid. 09 June 2013 - 1 guideSubmissive 09 June 2013 - 2 guides Update 20th Anniversary Update 1,097 360 36 4.505,4222,367 (44%)0-1h Watch Your Head!Make it to the bottom of the Citadel's main elevator shaft in one piece. 16 November 2024 - 1 guideContainmentContain the Citadel core. 16 November 2024 - 1 guidePacifistContain the Citadel core without killing any stalkers. 16 November 2024 - Add a guideCar CrusherUse the cars to squash 15 antlions in Episode One. 16 November 2024 - 1 guideElevator ActionSurvive long enough to get on the parking garage elevator. 16 November 2024 - 1 guideLive BaitHelp Alyx snipe 30 enemies in Episode One. 16 November 2024 - Add a guideAttica!Destroy the gunship in the hospital attic. 16 November 2024 - Add a guideCitizen EscortDon't let any citizens die when escorting them to the escape train. 16 November 2024 - Add a guideEscape From City 17Escape City 17 with Alyx. 16 November 2024 - Add a guideThe One Free BulletFinish the game firing exactly one bullet. Grenade, crowbar, rocket, and Gravity Gun kills are okay! 16 November 2024 - Add a guideConservationistKill five enemies with the same energy ball. 16 November 2024 - Add a guideThink Fast!Kill an Elite Soldier with his own energy ball. 16 November 2024 - Add a guideZombie-queUse flares to light 15 zombies on fire. 16 November 2024 - 1 guideAcid ReflexKill an acid antlion worker. 16 November 2024 - Add a guideGet Some GrubSquish every antlion grub in Episode Two. 16 November 2024 - Add a guidePiñata PartyFind and break every web cache in Episode Two. 16 November 2024 - Add a guideInto the BreachHelp Griggs and Sheckley hold off the antlion invasion inside the mine shaft. 16 November 2024 - Add a guideTwoferDefeat both antlion guards outside the White Forest. 16 November 2024 - Add a guideHit and RunRun over 20 enemies with the car in Episode Two. 16 November 2024 - Add a guideMeet the HuntersSurvive the Hunter ambush with Alyx. 16 November 2024 - Add a guidePuttin' On a ClinicDefeat the chopper in Episode Two without any misses. 16 November 2024 - Add a guideGunishment!Destroy the Combine Autogun in the junkyard. 16 November 2024 - Add a guideCache CheckerFind every radar cache in chapter Under The Radar. 16 November 2024 - Add a guidePedal to the MetalBeat DOG in a race to the White Forest base. 16 November 2024 - Add a guideGordon Propelled RocketUnlock the rocket launcher lambda cache in chapter Under The Radar. 16 November 2024 - Add a guideQuiet Mountain GetawaySurvive the ambush at White Forest Inn. 16 November 2024 - Add a guideLittle Rocket ManSend the garden gnome into space. 16 November 2024 - Add a guideSecondary Silo SecuredSecure the launch doors on missile silo 2. 16 November 2024 - Add a guideNeighborhood WatchSave all buildings outside the missile silo from destruction. 16 November 2024 - Add a guideDefense of the ArmamentSave the missile silo from the Combine offensive. 16 November 2024 - Add a guidePaybackKill a Hunter with its own flechettes. 16 November 2024 - Add a guideBone BreakerKill 30 enemies with thrown physics objects. 16 November 2024 - Add a guideDeadly HarvestKill an enemy by planting a hopper mine. 16 November 2024 - Add a guideHot Potat0wnedKill a Combine soldier with his own grenade. 16 November 2024 - Add a guideGrave RobberSteal a Zombine's grenade. 16 November 2024 - Add a guideGnome AloneIf you are reading this achievement, Gabe Newell has successfully launched Gnome Chompski into space. If you did not also receive the achievement 'Manufacturing Ascent', Newell has abandoned his plans to shoot Noam Chomsky into space. 16 November 2024 - 1 guide