| Game |
Achievement |
Points |
Unlocked |
 |
 |
The One Free Bullet |
1.06 | 02/23/2016 01:10:54 |
| Finish the game firing exactly one bullet. Grenade, crowbar, rocket, and Gravity Gun kills are okay! |
|
 |
Conservationist |
1.06 | 02/23/2016 01:10:20 |
| Kill five enemies with the same energy ball. |
|
 |
Think Fast! |
0.83 | 02/23/2016 01:10:20 |
| Kill an Elite Soldier with his own energy ball. |
|
 |
Zombie-que |
1.08 | 04/14/2011 19:43:08 |
| Use flares to light 15 zombies on fire. |
|
 |
Escape From City 17 |
0.64 | 04/14/2011 19:18:49 |
| Escape City 17 with Alyx. |
|
 |
Citizen Escort |
0.75 | 04/14/2011 19:11:18 |
| Don't let any citizens die when escorting them to the escape train. |
|
 |
Attica! |
0.62 | 04/13/2011 20:51:43 |
| Destroy the gunship in the hospital attic. |
|
 |
Car Crusher |
0.89 | 04/13/2011 20:22:46 |
| Use the cars to squash 15 antlions in Episode One. |
|
 |
Live Bait |
0.78 | 04/13/2011 20:12:24 |
| Help Alyx snipe 30 enemies in Episode One. |
|
 |
Elevator Action |
0.60 | 04/13/2011 19:34:13 |
| Survive long enough to get on the parking garage elevator. |
|
 |
Pacifist |
1.02 | 04/13/2011 18:56:48 |
| Contain the Citadel core without killing any stalkers. |
|
 |
Containment |
0.56 | 04/13/2011 18:56:48 |
| Contain the Citadel core. |
|
 |
Watch Your Head! |
0.55 | 04/13/2011 18:36:29 |
| Make it to the bottom of the Citadel's main elevator shaft in one piece. |
