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34 of 42 (81%) achievements earned:
Personal Achievements
 

Hit and Run

Break out of the Combine prisoner transport vehicle.
Unlocked 23 Mar, 2020 @ 11:31am

Quaranta Giorni

Enter the Quarantine Zone.
Unlocked 23 Mar, 2020 @ 12:04pm

Mazel Tov

Pick up and smash 50 glass bottles.
Unlocked 30 Mar, 2020 @ 9:45am

Good Grub

Feed the snark.
Unlocked 23 Mar, 2020 @ 11:18am

Mag-Snagger

Catch Russell's ammo magazine before it hits the ground.
Unlocked 23 Mar, 2020 @ 11:41am

Sustenance

Receive a tasty treat.
Unlocked 23 Mar, 2020 @ 12:44pm

Zombie with a Shotgun

Collect the shotgun.
Unlocked 23 Mar, 2020 @ 12:54pm

Xen Garden

Enter the explosive Xen infestation.
Unlocked 23 Mar, 2020 @ 1:59pm

Off the Rails

Stop the prisoner transport train.
Unlocked 23 Mar, 2020 @ 2:16pm

Checking In

Reach the Northern Star.
Unlocked 25 Mar, 2020 @ 5:19am

Heart-Breaker Hotel

Get creative turning the power back on.
Unlocked 25 Mar, 2020 @ 5:47am

Surface Tension

Escape the underground pit.
Unlocked 25 Mar, 2020 @ 6:02am

Unbonded

Collect the SMG.
Unlocked 25 Mar, 2020 @ 6:31am

Cord-Cutter

Shut down the substation.
Unlocked 25 Mar, 2020 @ 6:55am

Blast From the Past

Defuse a roomful of explosive barrels.
Unlocked 25 Mar, 2020 @ 8:08am

Flat Note

Kill Jeff.
Unlocked 25 Mar, 2020 @ 9:22am

Crustacean Frustration

Kill the annoying headcrab before it breaks everything.
Unlocked 2 Apr, 2020 @ 1:17pm

Hold Your Liquor

Catch a bottle falling out of a cupboard before it breaks and alerts Jeff.
Unlocked 25 Mar, 2020 @ 9:09am

Sea Level

Reach the aquatic exhibits.
Unlocked 25 Mar, 2020 @ 9:47am

Triple Bypass

Solve the tanker yard's electrical puzzle and escape.
Unlocked 27 Mar, 2020 @ 3:44pm

High Water March

Start climbing the water tower.
Unlocked 27 Mar, 2020 @ 4:29pm

Textbook Jinxing

Wake the Strider.
Unlocked 30 Mar, 2020 @ 9:33am

Point Extraction

Get to the superweapon.
Unlocked 30 Mar, 2020 @ 9:59am

Consequences

Make your choice.
Unlocked 30 Mar, 2020 @ 10:03am

Dead Giveaway

Loot a corpse.
Unlocked 23 Mar, 2020 @ 11:45am

Smash and Grab

Break open a supply crate with your hands.
Unlocked 23 Mar, 2020 @ 12:10pm

Up in Arms

Install your first pistol upgrade.
Unlocked 23 Mar, 2020 @ 12:19pm

Pro-Pain

Kill a grunt by shooting their gas tank.
Unlocked 25 Mar, 2020 @ 5:12am

Indirect Approach

Kill a Combine Heavy while their shield is up.
Unlocked 1 Apr, 2020 @ 3:27am

Combine Harvester

Use the gravity gloves to loot an item off a living Combine soldier.
Unlocked 2 Apr, 2020 @ 11:28am

Xen Lootism

Snatch a Xen grenade from its resting place.
Unlocked 25 Mar, 2020 @ 5:40am

Safe Trip

Use the multitool to hack a tripmine.
Unlocked 25 Mar, 2020 @ 7:07am

Deadliest Catch

Use the gravity gloves to intercept an incoming enemy grenade in mid-flight.
Unlocked 16 Oct, 2020 @ 10:46am

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 26 Nov, 2020 @ 11:50am



On a Roll

Interact with the playground somehow.

Freshly Squeezed

Test your grip on a headcrab heart.
+6

6 hidden achievements remaining

Details for each achievement will be revealed once unlocked