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18 of 33 (55%) achievements earned:
Personal Achievements
 

Malcontent

Escape the apartment block raid.
Unlocked 6 Jan @ 12:23am

What cat?

Break the mini-teleporter in Kleiner's lab.
Unlocked 27 Jun @ 12:08am

Trusty Hardware

Get the crowbar.
Unlocked 6 Jan @ 12:33am

Barnacle Bowling

Kill five barnacles with one barrel.
Unlocked 10 Aug @ 2:44pm

Anchor's Aweigh!

Get the airboat.
Unlocked 6 Jan @ 1:11am

Heavy Weapons

Get the airboat's mounted gun.
Unlocked 6 Jan @ 8:20am

Vorticough

Discover the hidden singing vortigaunt cave in chapter Water Hazard.
Unlocked 6 Jan @ 8:54am

Revenge!

Destroy the hunter-chopper in Half-Life 2.
Unlocked 6 Jan @ 8:48am

Blast from the Past

Find the HEV Suit Charger faceplate in Eli's scrapyard.
Unlocked 30 Aug @ 10:45am

Zero-Point Energy

Get the Gravity Gun in Black Mesa East.
Unlocked 6 Jan @ 9:14am

Two Points

Use DOG's ball to make a basket in Eli's scrapyard.
Unlocked 6 Jan @ 9:20am

Hallowed Ground

Escort Gregori safely through the church cemetery.
Unlocked 22 Jan @ 11:15am

Where Cubbage Fears to Tread

Defend Little Odessa from the gunship attack.
Unlocked 22 Jan @ 11:36am

One Man Army

Destroy six gunships in Half-Life 2.
Unlocked 22 Feb @ 3:03am

Bug Hunt

Use the antlions to kill 50 enemies.
Unlocked 26 Feb @ 12:11pm

Fight the Power

Shut down the supression device by disabling its generators.
Unlocked 29 Feb @ 8:56am

Giant Killer

Survive the rooftop strider battle in the ruins of City 17.
Unlocked 1 Mar @ 11:29pm

Singularity Collapse

Destroy the Citadel's reactor core.
Unlocked 2 Mar @ 12:15am



Zombie Chopper

Play through Ravenholm using only the Gravity Gun.

OSHA Violation

Kill 3 enemies using the crane.

Targetted Advertising

Pin a soldier to the billboard in chapter Highway 17.

Keep Off the Sand!

Cross the antlion beach in chapter Sandtraps without touching the sand.

Flushed

Kill an enemy with a toilet.

Warden Freeman

Survive the second turret standoff in Nova Prospekt.

Follow Freeman

Gain command of a squad of rebels in the uprising.

Radiation Levels Detected

Get through the toxic tunnel under City 17 in Half-Life 2.

Plaza Defender

Survive the generator plaza standoff in chapter Anticitizen One.

Counter-Sniper

Kill all of the snipers in City 17.

Atomizer

Disintegrate 15 soldiers by throwing them into a Combine ball field.

Lambda Locator

Find all lambda caches in Half-Life 2.

Hack Attack!

Kill five enemies with a Manhack.
+2

2 hidden achievements remaining

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