0.02%
Escape From City 17
Escape City 17 with Alyx.
0.02%
Citizen Escort
Don't let any citizens die when escorting them to the escape train.
0.02%
Zombie-que
Use flares to light 15 zombies on fire.
0.02%
Hit and Run
Run over 20 enemies with the car in Episode Two.
0.02%
Grave Robber
Steal a Zombine's grenade.
0.02%
Little Rocket Man
Send the garden gnome into space.
0.04%
Pedal to the Metal
Beat DOG in a race to the White Forest base.
0.04%
Twofer
Defeat both antlion guards outside the White Forest.
0.04%
Gordon Propelled Rocket
Unlock the rocket launcher lambda cache in chapter Under The Radar.
0.04%
Meet the Hunters
Survive the Hunter ambush with Alyx.
0.04%
Gunishment!
Destroy the Combine Autogun in the junkyard.
0.04%
Deadly Harvest
Kill an enemy by planting a hopper mine.