Achievement Unlocked Game Visibility Global Unlocks
Australian Rules
Dominate an enemy Sniper. 		Unlocked
Team Fortress 2 19.4%
Burn Notice
Survive 30 seconds after being ignited while cloaked. 		Unlocked
Team Fortress 2 20.3%
Self-destruct Sequence
Headshot 10 enemy Snipers. 		Unlocked
Team Fortress 2 19.1%
War Crime and Punishment
In a single life, kill 3 enemies who have damaged a Medic that is healing you. 		Unlocked
Team Fortress 2 22.3%
Grey Matter
Get 25 headshots as a Sniper. 		Unlocked
Team Fortress 2 20.2%
Dynasty
Win 20 games. 		Unlocked
Team Fortress 2 20.8%
Weenie Roast
Have 2 enemy Scouts on fire at the same time. 		Unlocked
Team Fortress 2 22.4%
Master of Disguise
Trick an opposing Medic into healing you. 		Unlocked
Team Fortress 2 23.4%
Spies Like Us
While cloaked, bump into an enemy cloaked Spy. 		Unlocked
Team Fortress 2 24.3%
Socket to Him
Headshot an enemy Demoman. 		Unlocked
Team Fortress 2 25.3%
Be Efficient
Get 3 kills with the Sniper Rifle without missing a shot. 		Unlocked
Team Fortress 2 25.0%
Ghastly Gibus Grab
Dominate a player wearing any achievement Gibus hat to earn your own Ghostly Gibus. 		Unlocked
Team Fortress 2 25.5%
Rasputin
In a single life, get shot, burned, bludgeoned, and receive explosive damage. 		Unlocked
Team Fortress 2 26.6%
Dropped Dead
Kill a Scout in midair with your Sniper Rifle or the Huntsman. 		Unlocked
Team Fortress 2 27.4%
Next of Kindling
Ignite an enemy, and the Medic healing him. 		Unlocked
Team Fortress 2 29.0%
Nemesis
Get five revenge kills. 		Unlocked
Team Fortress 2 29.2%
Camp Fire
Kill 3 enemies in a row, all within the same area. 		Unlocked
Team Fortress 2 31.6%
Iron Kurtain
Take 1000 points of damage in a single life. 		Unlocked
Team Fortress 2 41.7%
The Boss
Win a Long Game on Offices on Normal Difficulty. 		Unlocked
Killing Floor 10.4%
Lab Cleaner
Win a Long Game on Biotics Lab on Normal Difficulty. 		Unlocked
Killing Floor 15.2%
Fascist Dietitian
Kill 200 Bloats. 		Unlocked
Killing Floor 16.0%
Pub Crawl
Win a Long Game on West London on Normal Difficulty. 		Unlocked
Killing Floor 19.0%
Homer's Heroes
Kill 100 Sirens. 		Unlocked
Killing Floor 20.3%
Self Medicator
In Co-op Mode, Use Syringe on Yourself 100 Times. 		Unlocked
Killing Floor 28.3%
Philanthropist
Give 1,000 Pounds to Teammates who have 50% of Your Cash or Less. 		Unlocked
Killing Floor 32.4%
Experimenticenticide
Kill 100 Specimens. 		Unlocked
Killing Floor 68.0%
It's Not Easy Being Greasy
Cause a Specimen to Die by Luring them into Bloat Acid. 		Unlocked
Killing Floor 67.3%
Fruitcake
Beat four Portal advanced maps. 		Unlocked
Portal 11.9%
Heartbreaker
Complete Portal. 		Unlocked
Portal 52.5%
Partygoer
Make the correct party escort submission position decision. 		Unlocked
Portal 55.9%
Fratricide
Do whatever it takes to survive. 		Unlocked
Portal 63.8%
Lab Rat
Acquire the fully powered Aperture Science Handheld Portal Device. 		Unlocked
Portal 81.5%
Miranda 10 in a row
Shoot down 10 enemy planes without dying 		Unlocked
Altitude 1.7%
Miranda Multikill x 4
Shoot down 4 enemy planes within 4 seconds of one another 		Unlocked
Altitude 1.7%
Miranda 6 in a row
Shoot down 6 enemy planes without dying 		Unlocked
Altitude 2.4%
Miranda Kill Markings 50
Shoot down 50 enemy planes 		Unlocked
Altitude 3.2%
Loopy 10 in a row
Shoot down 10 enemy planes without dying 		Unlocked
Altitude 4.9%
Miranda 3 in a row
Shoot down 3 enemy planes without dying 		Unlocked
Altitude 4.5%
Miranda Multikill x 2
Shoot down 2 enemy planes within 4 seconds of one another 		Unlocked
Altitude 4.7%
Bomber 6 in a row
Shoot down 6 enemy planes without dying 		Unlocked
Altitude 4.8%
Bomber Multikill x 3
Shoot down 3 enemy planes within 4 seconds of one another 		Unlocked
Altitude 7.2%
Loopy 6 in a row
Shoot down 6 enemy planes without dying 		Unlocked
Altitude 12.2%
Bomber 3 in a row
Shoot down 3 enemy planes without dying 		Unlocked
Altitude 13.4%
Loopy Kill Markings 50
Shoot down 50 enemy planes 		Unlocked
Altitude 15.4%
Bomber Multikill x 2
Shoot down 2 enemy planes within 4 seconds of one another 		Unlocked
Altitude 15.0%
Loopy 3 in a row
Shoot down 3 enemy planes without dying 		Unlocked
Altitude 25.0%
Loopy Multikill x 2
Shoot down 2 enemy planes within 4 seconds of one another 		Unlocked
Altitude 25.7%
Multiplanar Mayhem
Complete Training: Multiplanar Mayhem 		Unlocked
Altitude 28.0%
Nuclear Launch Detected
Complete Training: Nuclear Launch Detected 		Unlocked
Altitude 30.1%
We Fly High (Ballin)
Complete Training: We Fly High (Ballin) 		Unlocked
Altitude 33.1%
Splanelunking
Complete Training: Splanelunking 		Unlocked
Altitude 46.8%
Pilot Certification
Complete Training: Pilot Certification 		Unlocked
Altitude 62.5%