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56 dari 69 (81%) pencapaian didapatkan:
Pencapaian Pribadi
 

Defiant

Hit the trashcan cop with the can.
Didapatkan pada 1 Des 2010 @ 3:01pm

Submissive

Put the can in the trash.
Didapatkan pada 1 Des 2010 @ 2:17pm

Malcontent

Escape the apartment block raid.
Didapatkan pada 1 Des 2010 @ 3:16pm

What cat?

Break the mini-teleporter in Kleiner's lab.
Didapatkan pada 4 Agu 2013 @ 3:55am

Trusty Hardware

Get the crowbar.
Didapatkan pada 2 Des 2010 @ 12:13am

Barnacle Bowling

Kill five barnacles with one barrel.
Didapatkan pada 2 Des 2010 @ 3:19pm

Anchor's Aweigh!

Get the airboat.
Didapatkan pada 5 Des 2010 @ 3:56am

Heavy Weapons

Get the airboat's mounted gun.
Didapatkan pada 5 Des 2010 @ 5:43am

Vorticough

Discover the hidden singing vortigaunt cave in chapter Water Hazard.
Didapatkan pada 5 Des 2010 @ 6:06am

Revenge!

Destroy the hunter-chopper in Half-Life 2.
Didapatkan pada 5 Des 2010 @ 6:03am

Blast from the Past

Find the HEV Suit Charger faceplate in Eli's scrapyard.
Didapatkan pada 5 Des 2010 @ 6:57am

Zero-Point Energy

Get the Gravity Gun in Black Mesa East.
Didapatkan pada 5 Des 2010 @ 6:58am

Two Points

Use DOG's ball to make a basket in Eli's scrapyard.
Didapatkan pada 1 Agu 2013 @ 6:31am

Zombie Chopper

Play through Ravenholm using only the Gravity Gun.
Didapatkan pada 9 Okt 2019 @ 3:42am

Hallowed Ground

Escort Gregori safely through the church cemetery.
Didapatkan pada 5 Des 2010 @ 8:13am

OSHA Violation

Kill 3 enemies using the crane.
Didapatkan pada 7 Des 2010 @ 2:19pm

Targetted Advertising

Pin a soldier to the billboard in chapter Highway 17.
Didapatkan pada 7 Des 2010 @ 2:35pm

Where Cubbage Fears to Tread

Defend Little Odessa from the gunship attack.
Didapatkan pada 6 Des 2010 @ 12:11am

One Man Army

Destroy six gunships in Half-Life 2.
Didapatkan pada 8 Des 2010 @ 11:55pm

Keep Off the Sand!

Cross the antlion beach in chapter Sandtraps without touching the sand.
Didapatkan pada 8 Des 2010 @ 4:28pm

Bug Hunt

Use the antlions to kill 50 enemies.
Didapatkan pada 9 Des 2010 @ 12:03am

Flushed

Kill an enemy with a toilet.
Didapatkan pada 4 Agu 2013 @ 6:10am

Warden Freeman

Survive the second turret standoff in Nova Prospekt.
Didapatkan pada 9 Des 2010 @ 1:58pm

Follow Freeman

Gain command of a squad of rebels in the uprising.
Didapatkan pada 9 Des 2010 @ 2:54pm

Radiation Levels Detected

Get through the toxic tunnel under City 17 in Half-Life 2.
Didapatkan pada 9 Des 2010 @ 3:22pm

Plaza Defender

Survive the generator plaza standoff in chapter Anticitizen One.
Didapatkan pada 10 Des 2010 @ 8:22am

Counter-Sniper

Kill all of the snipers in City 17.
Didapatkan pada 4 Agu 2013 @ 6:15am

Fight the Power

Shut down the supression device by disabling its generators.
Didapatkan pada 11 Des 2010 @ 3:27pm

Giant Killer

Survive the rooftop strider battle in the ruins of City 17.
Didapatkan pada 11 Des 2010 @ 4:39pm

Atomizer

Disintegrate 15 soldiers by throwing them into a Combine ball field.
Didapatkan pada 11 Des 2010 @ 4:57pm

Singularity Collapse

Destroy the Citadel's reactor core.
Didapatkan pada 11 Des 2010 @ 5:22pm

Lambda Locator

Find all lambda caches in Half-Life 2.
Didapatkan pada 13 Okt 2019 @ 8:20am

Hack Attack!

Kill five enemies with a Manhack.
Didapatkan pada 9 Des 2010 @ 3:17pm

Acid Reflex

Kill an acid antlion worker.
Didapatkan pada 18 Nov @ 1:16am

Get Some Grub

Squish every antlion grub in Episode Two.
Didapatkan pada 18 Nov @ 1:16am

Piñata Party

Find and break every web cache in Episode Two.
Didapatkan pada 18 Nov @ 1:16am

Into the Breach

Help Griggs and Sheckley hold off the antlion invasion inside the mine shaft.
Didapatkan pada 18 Nov @ 1:16am

Twofer

Defeat both antlion guards outside the White Forest.
Didapatkan pada 18 Nov @ 1:16am

Hit and Run

Run over 20 enemies with the car in Episode Two.
Didapatkan pada 18 Nov @ 1:16am

Meet the Hunters

Survive the Hunter ambush with Alyx.
Didapatkan pada 18 Nov @ 1:16am

Puttin' On a Clinic

Defeat the chopper in Episode Two without any misses.
Didapatkan pada 18 Nov @ 1:16am

Gunishment!

Destroy the Combine Autogun in the junkyard.
Didapatkan pada 18 Nov @ 1:16am

Cache Checker

Find every radar cache in chapter Under The Radar.
Didapatkan pada 18 Nov @ 1:16am

Pedal to the Metal

Beat DOG in a race to the White Forest base.
Didapatkan pada 18 Nov @ 1:16am

Gordon Propelled Rocket

Unlock the rocket launcher lambda cache in chapter Under The Radar.
Didapatkan pada 18 Nov @ 1:16am

Quiet Mountain Getaway

Survive the ambush at White Forest Inn.
Didapatkan pada 18 Nov @ 1:16am

Little Rocket Man

Send the garden gnome into space.
Didapatkan pada 18 Nov @ 1:16am

Secondary Silo Secured

Secure the launch doors on missile silo 2.
Didapatkan pada 18 Nov @ 1:16am

Neighborhood Watch

Save all buildings outside the missile silo from destruction.
Didapatkan pada 18 Nov @ 1:16am

Defense of the Armament

Save the missile silo from the Combine offensive.
Didapatkan pada 18 Nov @ 1:16am

Payback

Kill a Hunter with its own flechettes.
Didapatkan pada 18 Nov @ 1:16am

Bone Breaker

Kill 30 enemies with thrown physics objects.
Didapatkan pada 18 Nov @ 1:16am

Deadly Harvest

Kill an enemy by planting a hopper mine.
Didapatkan pada 18 Nov @ 1:16am

Hot Potat0wned

Kill a Combine soldier with his own grenade.
Didapatkan pada 18 Nov @ 1:16am

Grave Robber

Steal a Zombine's grenade.
Didapatkan pada 18 Nov @ 1:16am

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 18 Nov @ 1:16am



Watch Your Head!

Make it to the bottom of the Citadel's main elevator shaft in one piece.

Containment

Contain the Citadel core.

Pacifist

Contain the Citadel core without killing any stalkers.

Car Crusher

Use the cars to squash 15 antlions in Episode One.

Elevator Action

Survive long enough to get on the parking garage elevator.

Live Bait

Help Alyx snipe 30 enemies in Episode One.

Attica!

Destroy the gunship in the hospital attic.

Citizen Escort

Don't let any citizens die when escorting them to the escape train.

Escape From City 17

Escape City 17 with Alyx.

The One Free Bullet

Finish the game firing exactly one bullet. Grenade, crowbar, rocket, and Gravity Gun kills are okay!

Conservationist

Kill five enemies with the same energy ball.

Think Fast!

Kill an Elite Soldier with his own energy ball.

Zombie-que

Use flares to light 15 zombies on fire.