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69 dari 69 (100%) pencapaian didapatkan:
Pencapaian Pribadi
 

Defiant

Hit the trashcan cop with the can.
Didapatkan pada 18 Feb 2012 @ 12:14am

Submissive

Put the can in the trash.
Didapatkan pada 19 Sep 2012 @ 3:26pm

Malcontent

Escape the apartment block raid.
Didapatkan pada 19 Sep 2012 @ 3:35pm

What cat?

Break the mini-teleporter in Kleiner's lab.
Didapatkan pada 26 Nov 2023 @ 4:28pm

Trusty Hardware

Get the crowbar.
Didapatkan pada 10 Jul 2014 @ 8:12am

Barnacle Bowling

Kill five barnacles with one barrel.
Didapatkan pada 10 Jul 2014 @ 8:25am

Anchor's Aweigh!

Get the airboat.

Heavy Weapons

Get the airboat's mounted gun.

Vorticough

Discover the hidden singing vortigaunt cave in chapter Water Hazard.
Didapatkan pada 27 Nov 2023 @ 4:44pm

Revenge!

Destroy the hunter-chopper in Half-Life 2.

Blast from the Past

Find the HEV Suit Charger faceplate in Eli's scrapyard.

Zero-Point Energy

Get the Gravity Gun in Black Mesa East.
Didapatkan pada 30 Mei 2010 @ 5:58pm

Two Points

Use DOG's ball to make a basket in Eli's scrapyard.
Didapatkan pada 26 Nov 2023 @ 6:51pm

Zombie Chopper

Play through Ravenholm using only the Gravity Gun.
Didapatkan pada 26 Nov 2023 @ 7:50pm

Hallowed Ground

Escort Gregori safely through the church cemetery.
Didapatkan pada 7 Jan 2020 @ 10:15am

OSHA Violation

Kill 3 enemies using the crane.
Didapatkan pada 26 Nov 2023 @ 8:20pm

Targetted Advertising

Pin a soldier to the billboard in chapter Highway 17.
Didapatkan pada 7 Jan 2020 @ 10:38am

Where Cubbage Fears to Tread

Defend Little Odessa from the gunship attack.
Didapatkan pada 7 Jan 2020 @ 10:30am

One Man Army

Destroy six gunships in Half-Life 2.
Didapatkan pada 7 Jan 2020 @ 11:40am

Keep Off the Sand!

Cross the antlion beach in chapter Sandtraps without touching the sand.
Didapatkan pada 26 Nov 2023 @ 9:29pm

Bug Hunt

Use the antlions to kill 50 enemies.
Didapatkan pada 7 Jan 2020 @ 11:47am

Flushed

Kill an enemy with a toilet.
Didapatkan pada 26 Nov 2023 @ 9:57pm

Warden Freeman

Survive the second turret standoff in Nova Prospekt.
Didapatkan pada 7 Jan 2020 @ 12:19pm

Follow Freeman

Gain command of a squad of rebels in the uprising.
Didapatkan pada 7 Jan 2020 @ 12:35pm

Radiation Levels Detected

Get through the toxic tunnel under City 17 in Half-Life 2.
Didapatkan pada 7 Jan 2020 @ 12:47pm

Plaza Defender

Survive the generator plaza standoff in chapter Anticitizen One.
Didapatkan pada 7 Jan 2020 @ 12:59pm

Counter-Sniper

Kill all of the snipers in City 17.
Didapatkan pada 27 Nov 2023 @ 12:13am

Fight the Power

Shut down the supression device by disabling its generators.
Didapatkan pada 7 Jan 2020 @ 1:22pm

Giant Killer

Survive the rooftop strider battle in the ruins of City 17.
Didapatkan pada 7 Jan 2020 @ 2:07pm

Atomizer

Disintegrate 15 soldiers by throwing them into a Combine ball field.
Didapatkan pada 27 Nov 2023 @ 3:56pm

Singularity Collapse

Destroy the Citadel's reactor core.
Didapatkan pada 7 Jan 2020 @ 2:33pm

Lambda Locator

Find all lambda caches in Half-Life 2.
Didapatkan pada 27 Nov 2023 @ 12:50am

Hack Attack!

Kill five enemies with a Manhack.
Didapatkan pada 26 Nov 2023 @ 9:39pm

Watch Your Head!

Make it to the bottom of the Citadel's main elevator shaft in one piece.
Didapatkan pada 15 Nov @ 3:58pm

Containment

Contain the Citadel core.
Didapatkan pada 15 Nov @ 4:11pm

Pacifist

Contain the Citadel core without killing any stalkers.
Didapatkan pada 15 Nov @ 4:11pm

Car Crusher

Use the cars to squash 15 antlions in Episode One.
Didapatkan pada 15 Nov @ 4:46pm

Elevator Action

Survive long enough to get on the parking garage elevator.
Didapatkan pada 15 Nov @ 4:53pm

Live Bait

Help Alyx snipe 30 enemies in Episode One.
Didapatkan pada 15 Nov @ 5:06pm

Attica!

Destroy the gunship in the hospital attic.
Didapatkan pada 15 Nov @ 5:39pm

Citizen Escort

Don't let any citizens die when escorting them to the escape train.
Didapatkan pada 15 Nov @ 6:05pm

Escape From City 17

Escape City 17 with Alyx.
Didapatkan pada 15 Nov @ 6:12pm

The One Free Bullet

Finish the game firing exactly one bullet. Grenade, crowbar, rocket, and Gravity Gun kills are okay!
Didapatkan pada 15 Nov @ 6:12pm

Conservationist

Kill five enemies with the same energy ball.
Didapatkan pada 15 Nov @ 4:04pm

Think Fast!

Kill an Elite Soldier with his own energy ball.
Didapatkan pada 15 Nov @ 5:44pm

Zombie-que

Use flares to light 15 zombies on fire.
Didapatkan pada 15 Nov @ 4:51pm

Acid Reflex

Kill an acid antlion worker.
Didapatkan pada 15 Nov @ 7:02pm

Get Some Grub

Squish every antlion grub in Episode Two.
Didapatkan pada 15 Nov @ 8:30pm

Piñata Party

Find and break every web cache in Episode Two.
Didapatkan pada 15 Nov @ 8:19pm

Into the Breach

Help Griggs and Sheckley hold off the antlion invasion inside the mine shaft.
Didapatkan pada 15 Nov @ 7:33pm

Twofer

Defeat both antlion guards outside the White Forest.
Didapatkan pada 15 Nov @ 8:35pm

Hit and Run

Run over 20 enemies with the car in Episode Two.
Didapatkan pada 15 Nov @ 9:54pm

Meet the Hunters

Survive the Hunter ambush with Alyx.
Didapatkan pada 15 Nov @ 9:19pm

Puttin' On a Clinic

Defeat the chopper in Episode Two without any misses.
Didapatkan pada 15 Nov @ 9:42pm

Gunishment!

Destroy the Combine Autogun in the junkyard.
Didapatkan pada 15 Nov @ 9:49pm

Cache Checker

Find every radar cache in chapter Under The Radar.
Didapatkan pada 15 Nov @ 10:13pm

Pedal to the Metal

Beat DOG in a race to the White Forest base.
Didapatkan pada 15 Nov @ 10:22pm

Gordon Propelled Rocket

Unlock the rocket launcher lambda cache in chapter Under The Radar.
Didapatkan pada 15 Nov @ 9:56pm

Quiet Mountain Getaway

Survive the ambush at White Forest Inn.
Didapatkan pada 15 Nov @ 10:09pm

Little Rocket Man

Send the garden gnome into space.
Didapatkan pada 15 Nov @ 10:38pm

Secondary Silo Secured

Secure the launch doors on missile silo 2.
Didapatkan pada 15 Nov @ 10:50pm

Neighborhood Watch

Save all buildings outside the missile silo from destruction.
Didapatkan pada 15 Nov @ 11:23pm

Defense of the Armament

Save the missile silo from the Combine offensive.
Didapatkan pada 15 Nov @ 11:23pm

Payback

Kill a Hunter with its own flechettes.
Didapatkan pada 15 Nov @ 9:18pm

Bone Breaker

Kill 30 enemies with thrown physics objects.
Didapatkan pada 15 Nov @ 8:00pm

Deadly Harvest

Kill an enemy by planting a hopper mine.
Didapatkan pada 15 Nov @ 7:24pm

Hot Potat0wned

Kill a Combine soldier with his own grenade.
Didapatkan pada 15 Nov @ 9:30pm

Grave Robber

Steal a Zombine's grenade.
Didapatkan pada 15 Nov @ 6:44pm

Gnome Alone

If 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.
Didapatkan pada 15 Nov @ 2:45pm