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16 of 23 (70%) achievements earned:
Personal Achievements
 

Acid Reflex

Kill an acid antlion worker.
Unlocked 21 Sep, 2022 @ 5:43am

Piñata Party

Find and break every web cache in Episode Two.
Unlocked 21 Sep, 2022 @ 7:26am

Into the Breach

Help Griggs and Sheckley hold off the antlion invasion inside the mine shaft.
Unlocked 21 Sep, 2022 @ 6:23am

Twofer

Defeat both antlion guards outside the White Forest.
Unlocked 21 Sep, 2022 @ 8:06am

Meet the Hunters

Survive the Hunter ambush with Alyx.
Unlocked 22 Sep, 2022 @ 4:15am

Gunishment!

Destroy the Combine Autogun in the junkyard.
Unlocked 22 Sep, 2022 @ 8:07am

Cache Checker

Find every radar cache in chapter Under The Radar.
Unlocked 22 Sep, 2022 @ 8:44am

Gordon Propelled Rocket

Unlock the rocket launcher lambda cache in chapter Under The Radar.
Unlocked 22 Sep, 2022 @ 8:16am

Quiet Mountain Getaway

Survive the ambush at White Forest Inn.
Unlocked 22 Sep, 2022 @ 8:36am

Little Rocket Man

Send the garden gnome into space.
Unlocked 22 Sep, 2022 @ 9:01am

Secondary Silo Secured

Secure the launch doors on missile silo 2.
Unlocked 22 Sep, 2022 @ 9:24am

Payback

Kill a Hunter with its own flechettes.
Unlocked 22 Sep, 2022 @ 9:15am

Deadly Harvest

Kill an enemy by planting a hopper mine.
Unlocked 21 Sep, 2022 @ 6:16am

Hot Potat0wned

Kill a Combine soldier with his own grenade.
Unlocked 22 Sep, 2022 @ 4:25am

Grave Robber

Steal a Zombine's grenade.
Unlocked 21 Sep, 2022 @ 6:38am

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 20 Sep, 2022 @ 8:53am



Get Some Grub

Squish every antlion grub 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.

Pedal to the Metal

Beat DOG in a race to the White Forest base.

Neighborhood Watch

Save all buildings outside the missile silo from destruction.

Defense of the Armament

Save the missile silo from the Combine offensive.

Bone Breaker

Kill 30 enemies with thrown physics objects.