0.21%
Neighborhood Watch
Save all buildings outside the missile silo from destruction.
0.23%
Get Some Grub
Squish every antlion grub in Episode Two.
0.24%
Piñata Party
Find and break every web cache in Episode Two.
0.24%
Hot Potat0wned
Kill a Combine soldier with his own grenade.
0.28%
Payback
Kill a Hunter with its own flechettes.
0.28%
Little Rocket Man
Send the garden gnome into space.
0.28%
Puttin' On a Clinic
Defeat the chopper in Episode Two without any misses.
0.30%
Conservationist
Kill five enemies with the same energy ball.
0.31%
Zombie-que
Use flares to light 15 zombies on fire.
0.31%
The One Free Bullet
Finish the game firing exactly one bullet. Grenade, crowbar, rocket, and Gravity Gun kills are okay!
0.37%
Pacifist
Contain the Citadel core without killing any stalkers.
0.37%
Bone Breaker
Kill 30 enemies with thrown physics objects.