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Half-Life 2: Episode Two achievement guide & roadmap

 

Properties

No missable achievements (plus 22 unknown)

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Acid Reflex

Kill an acid antlion worker.

Into the Breach

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

Twofer

Defeat both antlion guards outside the White Forest.

Meet the Hunters

Survive the Hunter ambush with Alyx.

Gunishment!

Destroy the Combine Autogun in the junkyard.

Quiet Mountain Getaway

Survive the ambush at White Forest Inn.

Secondary Silo Secured

Secure the launch doors on missile silo 2.

Deadly Harvest

Kill an enemy by planting a hopper mine.

Defense of the Armament

Save the missile silo from the Combine offensive.

Gordon Propelled Rocket

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

Cache Checker

Find every radar cache in chapter Under The Radar.

Grave Robber

Steal a Zombine's grenade.

Hit and Run

Run over 20 enemies with the car in Episode Two.

Pedal to the Metal

Beat DOG in a race to the White Forest base.

Bone Breaker

Kill 30 enemies with thrown physics objects.

Payback

Kill a Hunter with its own flechettes.

PiƱata Party

Find and break every web cache in Episode Two.

Puttin' On a Clinic

Defeat the chopper in Episode Two without any misses.

Hot Potat0wned

Kill a Combine soldier with his own grenade.

Little Rocket Man

Send the garden gnome into space.

Neighborhood Watch

Save all buildings outside the missile silo from destruction.

Get Some Grub

Squish every antlion grub in Episode Two.