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36 of 42 (86%) achievements earned:
Personal Achievements
 

Hit and Run

Break out of the Combine prisoner transport vehicle.
Unlocked Apr 17, 2020 @ 4:26pm

Quaranta Giorni

Enter the Quarantine Zone.
Unlocked Apr 18, 2020 @ 7:52am

Mazel Tov

Pick up and smash 50 glass bottles.
Unlocked Apr 25, 2020 @ 12:14pm

Good Grub

Feed the snark.
Unlocked Apr 17, 2020 @ 4:08pm

On a Roll

Interact with the playground somehow.
Unlocked Apr 25, 2020 @ 11:32am

Little Slugger

Represent yourself with a specific prop on Russell's map.
Unlocked Apr 25, 2020 @ 11:34am

Eye of the Geiger

Measure Russell with the Geiger counter.
Unlocked May 4, 2020 @ 3:00pm

Mag-Snagger

Catch Russell's ammo magazine before it hits the ground.
Unlocked Apr 17, 2020 @ 4:35pm

Sustenance

Receive a tasty treat.
Unlocked Apr 18, 2020 @ 12:03pm

Freshly Squeezed

Test your grip on a headcrab heart.
Unlocked Jun 24, 2020 @ 5:59am

Zombie with a Shotgun

Collect the shotgun.
Unlocked Apr 18, 2020 @ 12:11pm

Xen Garden

Enter the explosive Xen infestation.
Unlocked Apr 18, 2020 @ 1:06pm

Off the Rails

Stop the prisoner transport train.
Unlocked Apr 18, 2020 @ 1:22pm

Checking In

Reach the Northern Star.
Unlocked Apr 18, 2020 @ 5:17pm

Heart-Breaker Hotel

Get creative turning the power back on.
Unlocked Apr 19, 2020 @ 8:07am

Surface Tension

Escape the underground pit.
Unlocked Apr 19, 2020 @ 8:26am

Unbonded

Collect the SMG.
Unlocked Apr 19, 2020 @ 2:17pm

Cord-Cutter

Shut down the substation.
Unlocked Apr 20, 2020 @ 3:33pm

Blast From the Past

Defuse a roomful of explosive barrels.
Unlocked Apr 20, 2020 @ 5:05pm

Flat Note

Kill Jeff.
Unlocked Apr 23, 2020 @ 1:34pm

Hold Your Liquor

Catch a bottle falling out of a cupboard before it breaks and alerts Jeff.
Unlocked Apr 23, 2020 @ 1:23pm

Sea Level

Reach the aquatic exhibits.
Unlocked Apr 23, 2020 @ 1:59pm

Triple Bypass

Solve the tanker yard's electrical puzzle and escape.
Unlocked Apr 23, 2020 @ 7:12pm

High Water March

Start climbing the water tower.
Unlocked Apr 24, 2020 @ 1:22pm

Textbook Jinxing

Wake the Strider.
Unlocked Apr 24, 2020 @ 1:41pm

Point Extraction

Get to the superweapon.
Unlocked Apr 24, 2020 @ 2:15pm

Consequences

Make your choice.
Unlocked Apr 24, 2020 @ 2:18pm

Dead Giveaway

Loot a corpse.
Unlocked Apr 17, 2020 @ 4:39pm

Smash and Grab

Break open a supply crate with your hands.
Unlocked Apr 18, 2020 @ 7:57am

Up in Arms

Install your first pistol upgrade.
Unlocked Apr 18, 2020 @ 8:02am

Pro-Pain

Kill a grunt by shooting their gas tank.
Unlocked Apr 18, 2020 @ 1:13pm

Indirect Approach

Kill a Combine Heavy while their shield is up.
Unlocked Apr 18, 2020 @ 5:01pm

Combine Harvester

Use the gravity gloves to loot an item off a living Combine soldier.
Unlocked Apr 24, 2020 @ 1:36pm

Xen Lootism

Snatch a Xen grenade from its resting place.
Unlocked Apr 18, 2020 @ 5:44pm

Safe Trip

Use the multitool to hack a tripmine.
Unlocked Apr 20, 2020 @ 3:43pm

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 Apr 22, 2021 @ 10:19am



Deadliest Catch

Use the gravity gloves to intercept an incoming enemy grenade in mid-flight.
+5

5 hidden achievements remaining

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