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59 of 69 (86%) achievements earned:
Personal Achievements
 

Defiant

Hit the trashcan cop with the can.
Unlocked 5 Jan, 2022 @ 6:37am

Malcontent

Escape the apartment block raid.
Unlocked 14 Mar, 2020 @ 4:09pm

What cat?

Break the mini-teleporter in Kleiner's lab.
Unlocked 12 Jan, 2022 @ 5:32am

Trusty Hardware

Get the crowbar.
Unlocked 14 Mar, 2020 @ 4:21pm

Barnacle Bowling

Kill five barnacles with one barrel.
Unlocked 14 Mar, 2020 @ 4:36pm

Anchor's Aweigh!

Get the airboat.
Unlocked 15 Mar, 2020 @ 1:57am

Heavy Weapons

Get the airboat's mounted gun.
Unlocked 15 Mar, 2020 @ 4:39am

Vorticough

Discover the hidden singing vortigaunt cave in chapter Water Hazard.
Unlocked 5 Jan, 2022 @ 11:48am

Revenge!

Destroy the hunter-chopper in Half-Life 2.
Unlocked 15 Mar, 2020 @ 4:49am

Blast from the Past

Find the HEV Suit Charger faceplate in Eli's scrapyard.
Unlocked 5 Jan, 2022 @ 12:09pm

Zero-Point Energy

Get the Gravity Gun in Black Mesa East.
Unlocked 15 Mar, 2020 @ 5:58am

Zombie Chopper

Play through Ravenholm using only the Gravity Gun.
Unlocked 5 Jan, 2022 @ 1:07pm

Hallowed Ground

Escort Gregori safely through the church cemetery.
Unlocked 15 Mar, 2020 @ 8:30am

OSHA Violation

Kill 3 enemies using the crane.
Unlocked 11 Jan, 2022 @ 2:21pm

Targetted Advertising

Pin a soldier to the billboard in chapter Highway 17.
Unlocked 11 Jan, 2022 @ 2:30pm

Where Cubbage Fears to Tread

Defend Little Odessa from the gunship attack.
Unlocked 15 Mar, 2020 @ 9:03am

One Man Army

Destroy six gunships in Half-Life 2.
Unlocked 17 Mar, 2020 @ 1:57pm

Keep Off the Sand!

Cross the antlion beach in chapter Sandtraps without touching the sand.
Unlocked 11 Jan, 2022 @ 3:23pm

Bug Hunt

Use the antlions to kill 50 enemies.
Unlocked 16 Mar, 2020 @ 3:48pm

Flushed

Kill an enemy with a toilet.
Unlocked 12 Jan, 2022 @ 4:09am

Warden Freeman

Survive the second turret standoff in Nova Prospekt.
Unlocked 16 Mar, 2020 @ 4:30pm

Follow Freeman

Gain command of a squad of rebels in the uprising.
Unlocked 16 Mar, 2020 @ 4:46pm

Radiation Levels Detected

Get through the toxic tunnel under City 17 in Half-Life 2.
Unlocked 17 Mar, 2020 @ 7:25am

Plaza Defender

Survive the generator plaza standoff in chapter Anticitizen One.
Unlocked 17 Mar, 2020 @ 7:42am

Counter-Sniper

Kill all of the snipers in City 17.
Unlocked 12 Jan, 2022 @ 10:39am

Fight the Power

Shut down the supression device by disabling its generators.
Unlocked 17 Mar, 2020 @ 1:53pm

Giant Killer

Survive the rooftop strider battle in the ruins of City 17.
Unlocked 17 Mar, 2020 @ 4:14pm

Atomizer

Disintegrate 15 soldiers by throwing them into a Combine ball field.
Unlocked 12 Jan, 2022 @ 12:07pm

Singularity Collapse

Destroy the Citadel's reactor core.
Unlocked 17 Mar, 2020 @ 4:53pm

Hack Attack!

Kill five enemies with a Manhack.
Unlocked 12 Jan, 2022 @ 5:03am

Watch Your Head!

Make it to the bottom of the Citadel's main elevator shaft in one piece.
Unlocked 6 Dec @ 1:06pm

Containment

Contain the Citadel core.
Unlocked 6 Dec @ 1:06pm

Pacifist

Contain the Citadel core without killing any stalkers.
Unlocked 6 Dec @ 1:06pm

Car Crusher

Use the cars to squash 15 antlions in Episode One.
Unlocked 6 Dec @ 1:06pm

Elevator Action

Survive long enough to get on the parking garage elevator.
Unlocked 6 Dec @ 1:06pm

Attica!

Destroy the gunship in the hospital attic.
Unlocked 6 Dec @ 1:06pm

Citizen Escort

Don't let any citizens die when escorting them to the escape train.
Unlocked 6 Dec @ 1:06pm

Escape From City 17

Escape City 17 with Alyx.
Unlocked 6 Dec @ 1:06pm

The One Free Bullet

Finish the game firing exactly one bullet. Grenade, crowbar, rocket, and Gravity Gun kills are okay!
Unlocked 6 Dec @ 1:06pm

Conservationist

Kill five enemies with the same energy ball.
Unlocked 6 Dec @ 1:06pm

Acid Reflex

Kill an acid antlion worker.
Unlocked 6 Dec @ 1:06pm

Piñata Party

Find and break every web cache in Episode Two.
Unlocked 6 Dec @ 1:06pm

Into the Breach

Help Griggs and Sheckley hold off the antlion invasion inside the mine shaft.
Unlocked 6 Dec @ 1:06pm

Twofer

Defeat both antlion guards outside the White Forest.
Unlocked 6 Dec @ 1:06pm

Hit and Run

Run over 20 enemies with the car in Episode Two.
Unlocked 6 Dec @ 1:06pm

Meet the Hunters

Survive the Hunter ambush with Alyx.
Unlocked 6 Dec @ 1:06pm

Gunishment!

Destroy the Combine Autogun in the junkyard.
Unlocked 6 Dec @ 1:06pm

Cache Checker

Find every radar cache in chapter Under The Radar.
Unlocked 6 Dec @ 1:06pm

Pedal to the Metal

Beat DOG in a race to the White Forest base.
Unlocked 6 Dec @ 1:06pm

Gordon Propelled Rocket

Unlock the rocket launcher lambda cache in chapter Under The Radar.
Unlocked 6 Dec @ 1:06pm

Quiet Mountain Getaway

Survive the ambush at White Forest Inn.
Unlocked 6 Dec @ 1:06pm

Little Rocket Man

Send the garden gnome into space.
Unlocked 6 Dec @ 1:06pm

Secondary Silo Secured

Secure the launch doors on missile silo 2.
Unlocked 6 Dec @ 1:06pm

Defense of the Armament

Save the missile silo from the Combine offensive.
Unlocked 6 Dec @ 1:06pm

Payback

Kill a Hunter with its own flechettes.
Unlocked 6 Dec @ 1:06pm

Bone Breaker

Kill 30 enemies with thrown physics objects.
Unlocked 6 Dec @ 1:06pm

Deadly Harvest

Kill an enemy by planting a hopper mine.
Unlocked 6 Dec @ 1:06pm

Grave Robber

Steal a Zombine's grenade.
Unlocked 6 Dec @ 1:06pm

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 6 Dec @ 1:06pm



Two Points

Use DOG's ball to make a basket in Eli's scrapyard.

Lambda Locator

Find all lambda caches in Half-Life 2.

Live Bait

Help Alyx snipe 30 enemies in Episode One.

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.

Puttin' On a Clinic

Defeat the chopper in Episode Two without any misses.

Neighborhood Watch

Save all buildings outside the missile silo from destruction.

Hot Potat0wned

Kill a Combine soldier with his own grenade.
+1

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