| Achievement | Unlocked | Visibility | Global Unlocks | |
|---|---|---|---|---|
|
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. |
2023-10-10 20:31:16 | 24.5% | ||
|
Defense of the Armament
Save the missile silo from the Combine offensive. |
2019-07-24 21:45:53 | 61.3% | ||
|
Secondary Silo Secured
Secure the launch doors on missile silo 2. |
2019-07-24 20:39:01 | 70.2% | ||
|
Pedal to the Metal
Beat DOG in a race to the White Forest base. |
2019-07-23 23:03:10 | 37.7% | ||
|
Quiet Mountain Getaway
Survive the ambush at White Forest Inn. |
2019-07-23 22:49:04 | 71.4% | ||
|
Gunishment!
Destroy the Combine Autogun in the junkyard. |
2019-07-23 21:34:36 | 72.4% | ||
|
Meet the Hunters
Survive the Hunter ambush with Alyx. |
2019-07-22 04:21:45 | 74.1% | ||
|
Twofer
Defeat both antlion guards outside the White Forest. |
2019-07-21 06:42:23 | 76.3% | ||
|
Into the Breach
Help Griggs and Sheckley hold off the antlion invasion inside the mine shaft. |
2019-07-20 06:27:10 | 83.3% | ||
|
Deadly Harvest
Kill an enemy by planting a hopper mine. |
2019-07-20 06:15:43 | 69.4% | ||
|
Acid Reflex
Kill an acid antlion worker. |
2019-07-20 05:32:38 | 90.3% | ||
|
Bone Breaker
Kill 30 enemies with thrown physics objects. |
23.9% | |||
|
Hot Potat0wned
Kill a Combine soldier with his own grenade. |
10.4% | |||
|
Neighborhood Watch
Save all buildings outside the missile silo from destruction. |
8.1% | |||
|
Gordon Propelled Rocket
Unlock the rocket launcher lambda cache in chapter Under The Radar. |
59.9% | |||
|
Piñata Party
Find and break every web cache in Episode Two. |
14.5% | |||
|
Cache Checker
Find every radar cache in chapter Under The Radar. |
46.2% | |||
|
Get Some Grub
Squish every antlion grub in Episode Two. |
6.9% | |||
|
Puttin' On a Clinic
Defeat the chopper in Episode Two without any misses. |
11.8% | |||
|
Hit and Run
Run over 20 enemies with the car in Episode Two. |
36.2% | |||
|
Payback
Kill a Hunter with its own flechettes. |
20.7% | |||
|
Little Rocket Man
Send the garden gnome into space. |
9.1% | |||
|
Grave Robber
Steal a Zombine's grenade. |
37.3% |