Half-Life 2 — Overachiever

Containment

Contain the Citadel core.

📖 Guides

—

Pacifist

Contain the Citadel core without killing any stalkers.

📖 Guides

—

Citizen Escort

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

📖 Guides

—

Escape From City 17

Escape City 17 with Alyx.

📖 Guides

—

The One Free Bullet

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

📖 Guides

—

Elevator Action

Survive long enough to get on the parking garage elevator.

📖 Guides

—

Attica!

Destroy the gunship in the hospital attic.

📖 Guides

—

Watch Your Head!

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

📖 Guides

—

Car Crusher

Use the cars to squash 15 antlions in Episode One.

📖 Guides

—

Live Bait

Help Alyx snipe 30 enemies in Episode One.

📖 Guides

—

Twofer

Defeat both antlion guards outside the White Forest.

📖 Guides

—

Into the Breach

Help Griggs and Sheckley hold off the antlion invasion inside the mine shaft.

📖 Guides

—

Defense of the Armament

Save the missile silo from the Combine offensive.

📖 Guides

—

Meet the Hunters

Survive the Hunter ambush with Alyx.

📖 Guides

—

Secondary Silo Secured

Secure the launch doors on missile silo 2.

📖 Guides

—

Neighborhood Watch

Save all buildings outside the missile silo from destruction.

📖 Guides

—

Pedal to the Metal

Beat DOG in a race to the White Forest base.

📖 Guides

—

Gordon Propelled Rocket

Unlock the rocket launcher lambda cache in chapter Under The Radar.

📖 Guides

—

Quiet Mountain Getaway

Survive the ambush at White Forest Inn.

📖 Guides

—

Piñata Party

Find and break every web cache in Episode Two.

📖 Guides

—

Cache Checker

Find every radar cache in chapter Under The Radar.

📖 Guides

—

Get Some Grub

Squish every antlion grub in Episode Two.

📖 Guides

—

Puttin' On a Clinic

Defeat the chopper in Episode Two without any misses.

📖 Guides

—

Gunishment!

Destroy the Combine Autogun in the junkyard.

📖 Guides

—

Hit and Run

Run over 20 enemies with the car in Episode Two.

📖 Guides

—

Payback

Kill a Hunter with its own flechettes.

📖 Guides

—

Acid Reflex

Kill an acid antlion worker.

📖 Guides

—

Little Rocket Man

Send the garden gnome into space.

📖 Guides

—

Grave Robber

Steal a Zombine's grenade.

📖 Guides

—

Zombie-que

Use flares to light 15 zombies on fire.

📖 Guides

—

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.

📖 Guides

—

Giant Killer

Survive the rooftop strider battle in the ruins of City 17.

📖 Guides

—

Hallowed Ground

Hidden achievement.

📖 Guides

—

Keep Off the Sand!

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

📖 Guides

—

Singularity Collapse

Hidden achievement.

📖 Guides

—

Plaza Defender

Survive the generator plaza standoff in chapter Anticitizen One.

📖 Guides

—

Zombie Chopper

Play through Ravenholm using only the Gravity Gun.

📖 Guides

—

Fight the Power

Shut down the supression device by disabling its generators.

📖 Guides

—

Radiation Levels Detected

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

📖 Guides

—

Warden Freeman

Survive the second turret standoff in Nova Prospekt.

📖 Guides

—

What cat?

Break the mini-teleporter in Kleiner's lab.

📖 Guides

—

Atomizer

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

📖 Guides

—

Malcontent

Escape the apartment block raid.

📖 Guides

—

Lambda Locator

Find all lambda caches in Half-Life 2.

📖 Guides

—

Blast from the Past

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

📖 Guides

—

Vorticough

Discover the hidden singing vortigaunt cave in chapter Water Hazard.

📖 Guides

—

Follow Freeman

Gain command of a squad of rebels in the uprising.

📖 Guides

—

Anchor's Aweigh!

Get the airboat.

📖 Guides

—

Heavy Weapons

Get the airboat's mounted gun.

📖 Guides

—

Trusty Hardware

Get the crowbar.

📖 Guides

—

Zero-Point Energy

Get the Gravity Gun in Black Mesa East.

📖 Guides

—

Defiant

Hidden achievement.

📖 Guides

—

Counter-Sniper

Kill all of the snipers in City 17.

📖 Guides

—

Barnacle Bowling

Kill five barnacles with one barrel.

📖 Guides

—

Revenge!

Destroy the hunter-chopper in Half-Life 2.

📖 Guides

—

Bug Hunt

Use the antlions to kill 50 enemies.

📖 Guides

—

OSHA Violation

Kill 3 enemies using the crane.

📖 Guides

—

Flushed

Kill an enemy with a toilet.

📖 Guides

—

Where Cubbage Fears to Tread

Hidden achievement.

📖 Guides

—

One Man Army

Destroy six gunships in Half-Life 2.

📖 Guides

—

Two Points

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

📖 Guides

—

Targetted Advertising

Pin a soldier to the billboard in chapter Highway 17.

📖 Guides

—

Submissive

Hidden achievement.

📖 Guides

—

Think Fast!

Kill an Elite Soldier with his own energy ball.

📖 Guides

—

Hack Attack!

Kill five enemies with a Manhack.

📖 Guides

—

Conservationist

Kill five enemies with the same energy ball.

📖 Guides

—

Bone Breaker

Kill 30 enemies with thrown physics objects.

📖 Guides

—

Deadly Harvest

Kill an enemy by planting a hopper mine.

📖 Guides

—

Hot Potat0wned

Kill a Combine soldier with his own grenade.

📖 Guides

—

🏆 Half-Life 2