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54 of 69 (78%) achievements earned:
Personal Achievements
 

Defiant

Hit the trashcan cop with the can.
Unlocked 26 Jan, 2015 @ 11:13am

Submissive

Put the can in the trash.
Unlocked 26 Jan, 2015 @ 11:13am

Malcontent

Escape the apartment block raid.
Unlocked 30 Dec, 2013 @ 1:43pm

What cat?

Break the mini-teleporter in Kleiner's lab.
Unlocked 30 Dec, 2013 @ 1:48pm

Trusty Hardware

Get the crowbar.
Unlocked 30 Dec, 2013 @ 2:00pm

Barnacle Bowling

Kill five barnacles with one barrel.
Unlocked 31 Dec, 2013 @ 12:26am

Anchor's Aweigh!

Get the airboat.
Unlocked 31 Dec, 2013 @ 1:08am

Heavy Weapons

Get the airboat's mounted gun.
Unlocked 31 Dec, 2013 @ 2:04am

Vorticough

Discover the hidden singing vortigaunt cave in chapter Water Hazard.
Unlocked 31 Dec, 2013 @ 2:27am

Revenge!

Destroy the hunter-chopper in Half-Life 2.
Unlocked 31 Dec, 2013 @ 2:25am

Blast from the Past

Find the HEV Suit Charger faceplate in Eli's scrapyard.
Unlocked 31 Dec, 2013 @ 3:15am

Zero-Point Energy

Get the Gravity Gun in Black Mesa East.
Unlocked 31 Dec, 2013 @ 3:14am

Two Points

Use DOG's ball to make a basket in Eli's scrapyard.
Unlocked 31 Dec, 2013 @ 3:21am

Zombie Chopper

Play through Ravenholm using only the Gravity Gun.
Unlocked 2 Jul, 2014 @ 1:55pm

Hallowed Ground

Escort Gregori safely through the church cemetery.
Unlocked 31 Dec, 2013 @ 1:16pm

OSHA Violation

Kill 3 enemies using the crane.
Unlocked 2 Jul, 2014 @ 2:23pm

Targetted Advertising

Pin a soldier to the billboard in chapter Highway 17.
Unlocked 2 Jul, 2014 @ 2:35pm

Where Cubbage Fears to Tread

Defend Little Odessa from the gunship attack.
Unlocked 2 Jul, 2014 @ 2:15pm

One Man Army

Destroy six gunships in Half-Life 2.
Unlocked 26 Jan, 2015 @ 11:13am

Keep Off the Sand!

Cross the antlion beach in chapter Sandtraps without touching the sand.
Unlocked 26 Jan, 2015 @ 11:13am

Bug Hunt

Use the antlions to kill 50 enemies.
Unlocked 26 Jan, 2015 @ 11:13am

Flushed

Kill an enemy with a toilet.
Unlocked 26 Jan, 2015 @ 11:13am

Warden Freeman

Survive the second turret standoff in Nova Prospekt.
Unlocked 26 Jan, 2015 @ 11:13am

Follow Freeman

Gain command of a squad of rebels in the uprising.
Unlocked 26 Jan, 2015 @ 11:13am

Radiation Levels Detected

Get through the toxic tunnel under City 17 in Half-Life 2.
Unlocked 26 Jan, 2015 @ 11:13am

Plaza Defender

Survive the generator plaza standoff in chapter Anticitizen One.
Unlocked 26 Jan, 2015 @ 11:13am

Counter-Sniper

Kill all of the snipers in City 17.
Unlocked 26 Jan, 2015 @ 11:13am

Fight the Power

Shut down the supression device by disabling its generators.
Unlocked 26 Jan, 2015 @ 11:13am

Giant Killer

Survive the rooftop strider battle in the ruins of City 17.
Unlocked 26 Jan, 2015 @ 11:13am

Atomizer

Disintegrate 15 soldiers by throwing them into a Combine ball field.
Unlocked 26 Jan, 2015 @ 11:13am

Singularity Collapse

Destroy the Citadel's reactor core.
Unlocked 26 Jan, 2015 @ 11:13am

Lambda Locator

Find all lambda caches in Half-Life 2.
Unlocked 26 Jan, 2015 @ 11:13am

Hack Attack!

Kill five enemies with a Manhack.
Unlocked 26 Jan, 2015 @ 11:13am

Watch Your Head!

Make it to the bottom of the Citadel's main elevator shaft in one piece.
Unlocked 4 Dec @ 1:23pm

Containment

Contain the Citadel core.
Unlocked 4 Dec @ 1:32pm

Elevator Action

Survive long enough to get on the parking garage elevator.
Unlocked 5 Dec @ 11:55am

Live Bait

Help Alyx snipe 30 enemies in Episode One.
Unlocked 5 Dec @ 12:23pm

Attica!

Destroy the gunship in the hospital attic.
Unlocked 5 Dec @ 12:43pm

Citizen Escort

Don't let any citizens die when escorting them to the escape train.
Unlocked 5 Dec @ 1:04pm

Escape From City 17

Escape City 17 with Alyx.
Unlocked 5 Dec @ 1:10pm

Acid Reflex

Kill an acid antlion worker.
Unlocked 7 Dec @ 4:28pm

Into the Breach

Help Griggs and Sheckley hold off the antlion invasion inside the mine shaft.
Unlocked 7 Dec @ 4:43pm

Twofer

Defeat both antlion guards outside the White Forest.
Unlocked 8 Dec @ 6:44am

Meet the Hunters

Survive the Hunter ambush with Alyx.
Unlocked 8 Dec @ 7:20am

Gunishment!

Destroy the Combine Autogun in the junkyard.
Unlocked 8 Dec @ 8:11am

Cache Checker

Find every radar cache in chapter Under The Radar.
Unlocked 8 Dec @ 8:32am

Pedal to the Metal

Beat DOG in a race to the White Forest base.
Unlocked 8 Dec @ 8:36am

Gordon Propelled Rocket

Unlock the rocket launcher lambda cache in chapter Under The Radar.
Unlocked 8 Dec @ 8:14am

Quiet Mountain Getaway

Survive the ambush at White Forest Inn.
Unlocked 8 Dec @ 8:28am

Secondary Silo Secured

Secure the launch doors on missile silo 2.
Unlocked 8 Dec @ 8:53am

Defense of the Armament

Save the missile silo from the Combine offensive.
Unlocked 8 Dec @ 12:04pm

Deadly Harvest

Kill an enemy by planting a hopper mine.
Unlocked 7 Dec @ 4:35pm

Grave Robber

Steal a Zombine's grenade.
Unlocked 7 Dec @ 4:15pm

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.
Unlocked 16 Nov @ 9:35am



Pacifist

Contain the Citadel core without killing any stalkers.

Car Crusher

Use the cars to squash 15 antlions in Episode One.

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.

Get Some Grub

Squish every antlion grub in Episode Two.

Piñata Party

Find and break every web cache in Episode Two.

Hit and Run

Run over 20 enemies with the car in Episode Two.

Puttin' On a Clinic

Defeat the chopper in Episode Two without any misses.

Little Rocket Man

Send the garden gnome into space.

Neighborhood Watch

Save all buildings outside the missile silo from destruction.

Payback

Kill a Hunter with its own flechettes.

Bone Breaker

Kill 30 enemies with thrown physics objects.

Hot Potat0wned

Kill a Combine soldier with his own grenade.