Achievement Unlocked Game Visibility Global Unlocks
Spontaneous Combustion
Ignite 10 cloaked Spies. 		Unlocked
Team Fortress 2 17.8%
War Crime Spybunal
Kill a Spy who just backstabbed a teammate. 		Unlocked
Team Fortress 2 18.5%
Come in From the Cold
Get a Revenge kill with a backstab. 		Unlocked
Team Fortress 2 18.5%
I Fry
Ignite 10 disguised Spies. 		Unlocked
Team Fortress 2 18.1%
Crock Block
Survive a direct hit from a critical rocket. 		Unlocked
Team Fortress 2 18.7%
Enemy at the Gate
Kill an opponent within the first second of a round. 		Unlocked
Team Fortress 2 18.8%
Dead Reckoning
Kill an enemy with an arrow while you're dead. 		Unlocked
Team Fortress 2 18.3%
Play Doctor
In a team with no Medics, be the first person to switch to Medic after a teammate calls for 'Medic!', and then heal 500 health. 		Unlocked
Team Fortress 2 19.3%
Powerhouse Offense
Win 2Fort with a shutout. 		Unlocked
Team Fortress 2 20.4%
Surgical Prep
Have an ÜberCharge ready before the Setup phase ends. 		Unlocked
Team Fortress 2 20.2%
Bedside Manner
Be healing a teammate as he achieves an achievement of his own. 		Unlocked
Team Fortress 2 18.4%
Identity Theft
Backstab the enemy that you're currently disguised as. 		Unlocked
Team Fortress 2 18.8%
Vanguard Party
Be the first on your team to start capturing a control point in a round. 		Unlocked
Team Fortress 2 18.5%
Wings of Glory
Kill an enemy soldier while both you and the target are airborne. 		Unlocked
Team Fortress 2 20.0%
Where Eagles Dare
Get the highest possible rocket jump using jump and crouch. 		Unlocked
Team Fortress 2 21.1%
Spy Milestone 1
Achieve 5 of the achievements in the Spy pack. 		Unlocked
Team Fortress 2 20.1%
You Only Shiv Thrice
Backstab 3 enemies within 10 seconds. 		Unlocked
Team Fortress 2 20.0%
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%
Shoot the Breeze
Kill a fully invisible Spy in a single hit. 		Unlocked
Team Fortress 2 20.3%
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%
Sniper Milestone 1
Achieve 5 of the achievements in the Sniper pack. 		Unlocked
Team Fortress 2 23.4%
Triple Prey
In a single round, get a kill with 3 different weapons. 		Unlocked
Team Fortress 2 23.1%
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%
Rasputin
In a single life, get shot, burned, bludgeoned, and receive explosive damage. 		Unlocked
Team Fortress 2 26.6%
Dead Heat
Kill an enemy in the same second that he kills you. 		Unlocked
Team Fortress 2 26.9%
Caber Toss
Bounce an enemy into the air and kill them before they land. 		Unlocked
Team Fortress 2 27.1%
Second Degree Burn
Kill a burning enemy who was ignited by another Pyro. 		Unlocked
Team Fortress 2 27.0%
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%
Marxman
Kill 10 enemies in mid-air with the minigun. 		Unlocked
Team Fortress 2 26.7%
Flamethrower
Set five enemies on fire in 30 seconds. 		Unlocked
Team Fortress 2 29.5%
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%
Hard to Kill
Get five kills in a row without dying. 		Unlocked
Team Fortress 2 38.0%
Iron Kurtain
Take 1000 points of damage in a single life. 		Unlocked
Team Fortress 2 41.7%
Payback
Kill a Hunter with its own flechettes. 		Unlocked
Half-Life 2: Episode Two 20.7%
Grave Robber
Steal a Zombine's grenade. 		Unlocked
Half-Life 2: Episode Two 37.3%
Defense of the Armament
Save the missile silo from the Combine offensive. 		Unlocked
Half-Life 2: Episode Two 61.3%
Deadly Harvest
Kill an enemy by planting a hopper mine. 		Unlocked
Half-Life 2: Episode Two 69.4%
Into the Breach
Help Griggs and Sheckley hold off the antlion invasion inside the mine shaft. 		Unlocked
Half-Life 2: Episode Two 83.3%
Acid Reflex
Kill an acid antlion worker. 		Unlocked
Half-Life 2: Episode Two 90.4%
Camera Shy
Detach security cameras from the walls. 		Unlocked
Portal 3.7%
Terminal Velocity
Fall 30,000 feet. 		Unlocked
Portal 8.7%
Vanilla Crazy Cake
Beat all six Portal advanced maps. 		Unlocked
Portal 9.0%
Fruitcake
Beat four Portal advanced maps. 		Unlocked
Portal 11.9%
Cupcake
Beat two Portal advanced maps. 		Unlocked
Portal 18.4%
Friendly Fire
Knock down a turret with another turret. 		Unlocked
Portal 49.2%
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%